(TXT) View Source
       
       # HAYES MICROCOMPUTER PRODUCTS, INC.
       
          ACCURA ISDN
       
          Card Type                 ISDN TA                              
          Chipset                   Siemens                              
          ISDN Protocol             V.110, V.120, X.75, PPP              
          Switch Type               5ESS, DMS100, 1TR6, EWSD, DSS1, NI-1 
          Data Bus                  Serial                               
          Error                     V.42bis                              
          Correction/Compression    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label  |      Function      | Label |
          |----------------------+--------+--------------------+-------|
          | Analog line 1 in     |  CN1   | DC power in        |  CN5  |
          |----------------------+--------+--------------------+-------|
          | Analog line 2 in     |  CN2   | Power switch       |  SW1  |
          |----------------------+--------+--------------------+-------|
          | ISDN line out        |  CN3   | Auto-dial switch   |  SW2  |
          |----------------------+--------+--------------------+-------|
          | Serial port          |  CN4   |                    |       |
          |------------------------------------------------------------|
          |      Note: Pressing the auto-dial switch while connected   |
          |      will disconnect the call.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                DIAGNOSTIC LED(S) (POWER-UP)                |
          |------------------------------------------------------------|
          |  LED  |     Color     |  Status   |       Condition        |
          |-------+---------------+-----------+------------------------|
          |  LNK  | Unidentified  |    On     |  TA is testing memory  |
          |-------+---------------+-----------+------------------------|
          |  LNK  | Unidentified  | Blinking  |   Memory test failed   |
          |-------+---------------+-----------+------------------------|
          |  B1   | Unidentified  |    On     |   TA is testing ISDN   |
          |       |               |           |  controller interface  |
          |-------+---------------+-----------+------------------------|
          |  B1   | Unidentified  | Blinking  |    ISDN controller     |
          |       |               |           | interface test failed  |
          |-------+---------------+-----------+------------------------|
          |  B2   | Unidentified  |    On     |   TA is testing ISDN   |
          |       |               |           |  controller functions  |
          |-------+---------------+-----------+------------------------|
          |  B2   | Unidentified  | Blinking  |    ISDN controller     |
          |       |               |           |  function test failed  |
          |-------+---------------+-----------+------------------------|
          |  AA   | Unidentified  |    On     |   TA is testing HDLC   |
          |       |               |           |       functions        |
          |-------+---------------+-----------+------------------------|
          |  AA   | Unidentified  | Blinking  |   HDLC function test   |
          |       |               |           |         failed         |
          |-------+---------------+-----------+------------------------|
          |  LNK  | Unidentified  |    On     |    All tests passed    |
          |------------------------------------------------------------|
          |      Note: On power-up, the TA should go through the tests |
          |      in the order indicated above. A blinking LED or any   |
          |      pattern other than the ones shown above indicate an   |
          |      error.                                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            DIAGNOSTIC LED(S) (NORMAL OPERATION)            |
          |------------------------------------------------------------|
          | LED |    Color     |  Status  |         Condition          |
          |-----+--------------+----------+----------------------------|
          | PWR | Unidentified |    On    |        Power is on         |
          |-----+--------------+----------+----------------------------|
          | PWR | Unidentified |   Off    |        Power is off        |
          |-----+--------------+----------+----------------------------|
          | LNK | Unidentified |    On    | Physical ISDN layer active |
          |-----+--------------+----------+----------------------------|
          | LNK | Unidentified |   Off    |    Physical ISDN layer     |
          |     |              |          |          inactive          |
          |-----+--------------+----------+----------------------------|
          | LNK | Unidentified | Blinking |  D-channel link layer in   |
          |     |              |          |      multi-frame mode      |
          |-----+--------------+----------+----------------------------|
          | B1  | Unidentified |    On    |    B1 channel connected    |
          |-----+--------------+----------+----------------------------|
          | B1  | Unidentified |   Off    |  B1 channel not connected  |
          |-----+--------------+----------+----------------------------|
          | B1  | Unidentified |  Random  |       B1 channel is        |
          |     |              |  blink   |   retransmitting packets   |
          |-----+--------------+----------+----------------------------|
          | B1  | Unidentified | 1 blink  | B1 channel is protected by |
          |     |              |          |   single DES encryption    |
          |-----+--------------+----------+----------------------------|
          | B1  | Unidentified | 3 blinks | B1 channel is protected by |
          |     |              |          |   triple DES encryption    |
          |-----+--------------+----------+----------------------------|
          | B2  | Unidentified |    On    |    B2 channel connected    |
          |-----+--------------+----------+----------------------------|
          | B2  | Unidentified |   Off    |  B2 channel not connected  |
          |-----+--------------+----------+----------------------------|
          | B2  | Unidentified |  Random  |       B2 channel is        |
          |     |              |  blink   |   retransmitting packets   |
          |-----+--------------+----------+----------------------------|
          | B2  | Unidentified | 1 blink  | B2 channel is protected by |
          |     |              |          |   single DES encryption    |
          |-----+--------------+----------+----------------------------|
          | B2  | Unidentified | 3 blinks | B2 channel is protected by |
          |     |              |          |   triple DES encryption    |
          |-----+--------------+----------+----------------------------|
          | AA  | Unidentified |    On    |    Auto-answer enabled     |
          |-----+--------------+----------+----------------------------|
          | AA  | Unidentified |   Off    |    Auto-answer disabled    |
          |-----+--------------+----------+----------------------------|
          | AA  | Unidentified | Blinking |      Phone is ringing      |
          |-----+--------------+----------+----------------------------|
          | DTR | Unidentified |    On    |     DTR signal is high     |
          |-----+--------------+----------+----------------------------|
          | DTR | Unidentified |   Off    |     DTR signal is low      |
          |-----+--------------+----------+----------------------------|
          | TX  | Unidentified | Blinking |       Serial port is       |
          |     |              |          |  transmitting data to TA   |
          |-----+--------------+----------+----------------------------|
          | TX  | Unidentified |   Off    |     Serial port is not     |
          |     |              |          |  transmitting data to TA   |
          |-----+--------------+----------+----------------------------|
          | RX  | Unidentified | Blinking |  Serial port is receiving  |
          |     |              |          |        data from TA        |
          |-----+--------------+----------+----------------------------|
          | RX  | Unidentified |   Off    |     Serial port is not     |
          |     |              |          |   receiving data from TA   |
          |-----+--------------+----------+----------------------------|
          |  1  | Unidentified |    On    | Analog line 1 is off-hook  |
          |-----+--------------+----------+----------------------------|
          |  1  | Unidentified |   Off    |  Analog line 1 is on-hook  |
          |-----+--------------+----------+----------------------------|
          |  2  | Unidentified |    On    | Analog line 2 is off-hook  |
          |-----+--------------+----------+----------------------------|
          |  2  | Unidentified |   Off    |  Analog line 2 is on-hook  |
          +------------------------------------------------------------+
       
          +--------------------------------------------------------+
          |              SUPPORTED STANDARD COMMANDS               |
          |--------------------------------------------------------|
          |                   Basic AT Commands                    |
          |--------------------------------------------------------|
          | +++, ‘comma’, A/                                       |
          |--------------------------------------------------------|
          | A, E, L, M, O, V                                       |
          |--------------------------------------------------------|
          | &C, &D, &F, &W, &Z                                     |
          |--------------------------------------------------------|
          |                      S-Registers                       |
          |--------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S7, S8                         |
          |--------------------------------------------------------|
          |      Note: See MHI help file for complete information. |
          +--------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                   ADDRESS IDENTIFICATION                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &ZOy=YaNb<#>/Zcxxxx/ [cmds]       |
          |              |                                             |
          |              | AT [cmds] &ZOy=A/Zcxxxx/ [cmds]             |
          |--------------+---------------------------------------------|
          | Description: | Sets the modem’s call identification to     |
          |              | identify itself to remote ISDN devices. A   |
          |              | indicates that no number is specified.      |
          |--------------+---------------------------------------------|
          | Note:        | One of either the YaNb<#> arguments or the  |
          |              | A/Zcxxxx/ must be present.                  |
          |--------------+---------------------------------------------|
          |   Argument   |                  Function                   |
          |--------------+---------------------------------------------|
          |     y=A      | Set address for analog adapter 1.           |
          |--------------+---------------------------------------------|
          |     y=B      | Set address for analog adapter 2.           |
          |--------------+---------------------------------------------|
          |     y=I      | Set address for ISDN.                       |
          |--------------+---------------------------------------------|
          |    í a=0     | Unknown number locality.                    |
          |--------------+---------------------------------------------|
          |     a=1      | International number.                       |
          |--------------+---------------------------------------------|
          |     a=2      | National number.                            |
          |--------------+---------------------------------------------|
          |     a=3      | Network number.                             |
          |--------------+---------------------------------------------|
          |     a=4      | Subscriber number.                          |
          |--------------+---------------------------------------------|
          |     a=6      | Abbreviated number.                         |
          |--------------+---------------------------------------------|
          |    í b=0     | Unknown number type.                        |
          |--------------+---------------------------------------------|
          |     b=1      | ISDN type number.                           |
          |--------------+---------------------------------------------|
          |     b=3      | X.121 data type number.                     |
          |--------------+---------------------------------------------|
          |     b=8      | National standard number.                   |
          |--------------+---------------------------------------------|
          |     b=9      | Private number.                             |
          |--------------+---------------------------------------------|
          |    í c=0     | NSAP subaddress of IA5 characters,          |
          |              | AFI=0x50.                                   |
          |--------------+---------------------------------------------|
          |     c=2      | User specified subaddress of IA5            |
          |              | characters.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           ADDRESS IDENTIFICATION - INCOMING CALL           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &ZIn=<#> [cmds]                   |
          |--------------+---------------------------------------------|
          | Description: | Compares the number for an incoming call to |
          |              | the address stored for each value of n. If  |
          |              | the numbers match, the call is routed to    |
          |              | the appropriate mode and protocol.          |
          |--------------+---------------------------------------------|
          |   Argument   |                  Function                   |
          |--------------+---------------------------------------------|
          |     n=0      | Set address for X.75 ISDN.                  |
          |--------------+---------------------------------------------|
          |     n=1      | Set address for V.110 ISDN.                 |
          |--------------+---------------------------------------------|
          |     n=2      | Set address for V.120 ISDN.                 |
          |--------------+---------------------------------------------|
          |     n=3      | Set address for PPP asynchronous to HDLC    |
          |              | conversion.                                 |
          |--------------+---------------------------------------------|
          |     n=4      | Set address for protocol auto-detection.    |
          |--------------+---------------------------------------------|
          |     n=6      | Set address for analog adapter 1.           |
          |--------------+---------------------------------------------|
          |     n=7      | Set address for analog adapter 2.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    AUTO-ANSWER PRIORITY                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects which analog adapter will answer    |
          |              | incoming analog calls first.                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &L0     | Analog adapter 1 answers first.             |
          |--------------+---------------------------------------------|
          |     &L1      | Analog adapter 2 answers first.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        BANDWIDTH ON DEMAND - HIGH TRAFFIC THRESHOLD        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] JAn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 48                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 Kbps                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the level that the bandwidth in use    |
          |              | must be over for the time set by the KAM    |
          |              | and KAS commands for the TA to attempt to   |
          |              | add another B channel connection.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      BANDWIDTH ON DEMAND - HIGH TRAFFIC TIME, MINUTES      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KAMn [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the amount of time, in minutes, that   |
          |              | the bandwidth in use set by the JA command  |
          |              | must be exceeded for the TA to attempt to   |
          |              | add another B channel connection.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      BANDWIDTH ON DEMAND - HIGH TRAFFIC TIME, SECONDS      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KASn [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the amount of time, in seconds, that   |
          |              | the bandwidth in use set by the JA command  |
          |              | must be exceeded for the TA to attempt to   |
          |              | add another B channel connection.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        BANDWIDTH ON DEMAND - LOW TRAFFIC THRESHOLD         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] JSn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 32                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 Kbps                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the level that the bandwidth in use    |
          |              | must be under for the time set by the KSM   |
          |              | and KSS commands for the TA to drop a B     |
          |              | channel connection.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      BANDWIDTH ON DEMAND - LOW TRAFFIC TIME, MINUTES       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KSMn [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the amount of time, in minutes, that   |
          |              | the bandwidth in use set by the JS command  |
          |              | must be under for the TA to drop a B        |
          |              | channel connection.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      BANDWIDTH ON DEMAND - LOW TRAFFIC TIME, SECONDS       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KSSn [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the amount of time, in seconds, that   |
          |              | the bandwidth in use set by the JS command  |
          |              | must be under for the TA to drop a B        |
          |              | channel connection.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S15                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S15=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Default:        | 130                                      |
          |-----------------+------------------------------------------|
          | Range:          | 0 - 158                                  |
          |-----------------+------------------------------------------|
          | Description:    | Controls active profile and data format. |
          |-----------------+------------------------------------------|
          |   Bit   | Value |                 Function                 |
          |---------+-------+------------------------------------------|
          |  1, 0   |    00 | Use even parity.                         |
          |         |       |                                          |
          |         |    01 | Use odd parity.                          |
          |         |       |                                          |
          |         |  í 10 | Do not use parity.                       |
          |---------+-------+------------------------------------------|
          |    2    |   í 0 | Use 1 stop bit.                          |
          |         |       |                                          |
          |         |     1 | Use 2 stop bit.                          |
          |---------+-------+------------------------------------------|
          |  4, 3   |  í 00 | Use 10-bit characters.                   |
          |         |       |                                          |
          |         |    01 | Use 11-bit characters.                   |
          |         |       |                                          |
          |         |    10 | Use 9-bit characters.                    |
          |         |       |                                          |
          |         |    11 | Use 8-bit characters.                    |
          |---------+-------+------------------------------------------|
          | 7, 6, 5 |   000 | Profile 0 active at power-up.            |
          |         |       |                                          |
          |         |   001 | Profile 1 active at power-up.            |
          |         |       |                                          |
          |         |   010 | Profile 2 active at power-up.            |
          |         |       |                                          |
          |         |   011 | Profile 3 active at power-up.            |
          |         |       |                                          |
          |         | í 100 | Factory defaults active at power-up.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 154                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 220                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls DTR, CTS, CD, and DSR signals, and |
          |              | speaker options.                            |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          | 2, 1 |    00 | Speaker disabled.                           |
          |      |       |                                             |
          |      |  í 01 | Speaker enabled until carrier signal        |
          |      |       | detected                                    |
          |      |    10 |                                             |
          |      |       | Speaker enabled.                            |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | DSR forced high.                            |
          |      |       |                                             |
          |      |     1 | DSR normal.                                 |
          |------+-------+---------------------------------------------|
          |  4   |     0 | CD forced high.                             |
          |      |       |                                             |
          |      |   í 1 | CD normal.                                  |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          | 7, 6 |    00 | DTR is forced on.                           |
          |      |       |                                             |
          |      |    01 | Dial default number on high DTR; hang up on |
          |      |       | low DTR.                                    |
          |      |  í 10 |                                             |
          |      |       | Low DTR hangs up and returns to command     |
          |      |    11 | mode.                                       |
          |      |       |                                             |
          |      |       | Low DTR hangs up and resets the modem to    |
          |      |       | profile 0.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 105                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 127                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls result codes, dialing, and echo.   |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Command echoing disabled.                   |
          |      |       |                                             |
          |      |   í 1 | Command echoing enabled.                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Insertion during phone call disabled.       |
          |      |       |                                             |
          |      |     1 | Insertion during phone call enabled.        |
          |------+-------+---------------------------------------------|
          |  5,  |   000 | Basic result codes only enabled.            |
          | 4, 3 |       |                                             |
          |      |   001 | Basic and connection speed result codes     |
          |      |       | enabled.                                    |
          |      |   010 |                                             |
          |      |       | Basic and connection speed result codes and |
          |      |   011 | dialtone detection enabled.                 |
          |      |       |                                             |
          |      |   100 | All result codes except dialtone detection  |
          |      |       | enabled.                                    |
          |      | í 101 |                                             |
          |      |       | All result codes enabled.                   |
          |      |   110 |                                             |
          |      |       | All result codes plus DTE speed and error   |
          |      |   111 | control level enabled.                      |
          |      |       |                                             |
          |      |       | All result codes plus ARQ enabled.          |
          |      |       |                                             |
          |      |       | All result codes plus ARQ and error control |
          |      |       | level enabled.                              |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Display result codes in numeric form.       |
          |      |       |                                             |
          |      |   í 1 | Display result codes in long form.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S35                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S35=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 144                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls 4800bps V.32, handshake            |
          |              | interruption, V.26bis mode, leased line     |
          |              | transmission attenuation, Selective Reject, |
          |              | password protection, and extended result    |
          |              | codes.                                      |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 3 -  |  0000 | Not used.                                   |
          |  0   |       |                                             |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Modem will not dial default number when     |
          |      |       | Data/Voice button is pressed                |
          |      |     1 |                                             |
          |      |       | Modem will dial default number when         |
          |      |       | Data/Voice button is pressed                |
          |------+-------+---------------------------------------------|
          | 6, 5 |    00 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  7   |   í 0 | Connection speed result codes disabled on   |
          |      |       | error correcting connection.                |
          |      |     1 |                                             |
          |      |       | Connection speed result codes enabled on    |
          |      |       | error correcting connection.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S38                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S38=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 9                                       |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-dial and CD signal.           |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Auto-dial of default number disabled.       |
          |      |       |                                             |
          |      |     1 | Auto-dial of default number enabled.        |
          |------+-------+---------------------------------------------|
          | 2-1  |    00 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | CD normal.                                  |
          |      |       |                                             |
          |      |     1 | CD according to UNIX standard.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S42                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S42=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 104                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls escape sequence, data/voice        |
          |              | switch, and RING result codes.              |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 2 -  |   000 | Not used.                                   |
          |  0   |       |                                             |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | Escape sequence enabled in answer mode.     |
          |      |       |                                             |
          |      |     1 | Escape sequence disabled in answer mode.    |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | Data/Voice switch enabled.                  |
          |      |       |                                             |
          |      |     1 | Data/Voice switch disabled.                 |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | Enable RING result.                         |
          |      |       |                                             |
          |      |     1 | Disable RING result.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S44                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S44=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 24                                      |
          |--------------+---------------------------------------------|
          | Description: | Controls cyclic dialing and DSR signal.     |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | Modem will dial only stored number          |
          |      |       | specified by an executed DS command.        |
          |      |     1 |                                             |
          |      |       | Modem will cycle through stored numbers on  |
          |      |       | DS command until modem connects.            |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | DSR normal.                                 |
          |      |       |                                             |
          |      |     1 | DSR follows DTR.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S80                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S80=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 208                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls originate/answer mode and          |
          |              | low-layer compatibility information.        |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 3 -  |  0000 | Not used.                                   |
          |  0   |       |                                             |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Analog adapter 2 does not send low-level    |
          |      |       | compatibility information.                  |
          |      |     1 |                                             |
          |      |       | Analog adapter 2 sends low-level            |
          |      |       | compatibility information.                  |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | ISDN does not send low-level compatibility  |
          |      |       | information.                                |
          |      |     1 |                                             |
          |      |       | ISDN sends low-level compatibility          |
          |      |       | information.                                |
          |------+-------+---------------------------------------------|
          |  7   |   í 0 | Analog adapter 1 does not send low-level    |
          |      |       | compatibility information.                  |
          |      |     1 |                                             |
          |      |       | Analog adapter 1 sends low-level            |
          |      |       | compatibility information.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S83                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S83=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 53                                      |
          |--------------+---------------------------------------------|
          | Description: | Controls the Loopback 4 function, V.42bis   |
          |              | compression, and the default dialing        |
          |              | device.                                     |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Loopback 4 disabled.                        |
          |      |       |                                             |
          |      |     1 | Loopback 4 enabled.                         |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  2   |     0 | V.42bis compression disabled.               |
          |      |       |                                             |
          |      |     1 | V.42bis compression enabled.                |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          | 5, 4 |  í 00 | Originate calls with analog adapter 1 by    |
          |      |       | default.                                    |
          |      |    10 |                                             |
          |      |       | Originate calls with ISDN by default.       |
          |      |    11 |                                             |
          |      |       | Originate calls with analog adapter 2 by    |
          |      |       | default.                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S118                  |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S118=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 245                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls dial-in mode, default line speed,  |
          |              | low-speed service type, and analog call     |
          |              | acceptance.                                 |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Dial-in calls may be answered.              |
          |      |       |                                             |
          |      |     1 | Dial-in calls may not be answered.          |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Use 64Kbps speed for ISDN.                  |
          |      |       |                                             |
          |      |     1 | Use 56Kbps speed for ISDN.                  |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Not used.                                   |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Use 3.1KHz service for analog line 2.       |
          |      |       |                                             |
          |      |     1 | Use voice service for analog line 2.        |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | Use 3.1KHz service for analog line 1.       |
          |      |       |                                             |
          |      |     1 | Use voice service for analog line 1.        |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | All analog calls will be answered.          |
          |      |       |                                             |
          |      |     1 | Only analog calls with matching MSN will be |
          |      |       | answered.                                   |
          |------+-------+---------------------------------------------|
          |  7   |   í 0 | Incoming analog calls will be answered.     |
          |      |       |                                             |
          |      |     1 | Incoming analog calls will be ignored.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S119                  |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S119=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 54                                      |
          |--------------+---------------------------------------------|
          | Description: | Controls callback function, signalling DDI, |
          |              | call acceptance, V.110 minimum speed, and   |
          |              | MSN function.                               |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Callback function disabled.                 |
          |      |       |                                             |
          |      |     1 | Callback function enabled.                  |
          |------+-------+---------------------------------------------|
          |  1   |   í 0 | Point-to-point signaling DDI function       |
          |      |       | disabled.                                   |
          |      |     1 |                                             |
          |      |       | Point-to-point signaling DDI function       |
          |      |       | enabled.                                    |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Multipoint signaling DDI function disabled. |
          |      |       |                                             |
          |      |     1 | Multipoint signaling DDI function enabled.  |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | All calls will be answered.                 |
          |      |       |                                             |
          |      |     1 | Only calls with matching MSN will be        |
          |      |       | answered.                                   |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | V.110 speed set to 19.2Kbps if local serial |
          |      |       | port speed is 19.2Kbps or faster.           |
          |      |     1 |                                             |
          |      |       | V.110 speed set to 38.4Kbps if local serial |
          |      |       | port speed is 38.4Kbps or faster.           |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | MSN functions normally.                     |
          |      |       |                                             |
          |      |     1 | Treat MSN settings as subaddresses.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CALL CHARGE - B1                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S120? S121? [cmds]                |
          |--------------+---------------------------------------------|
          | Default:     | Read-only                                   |
          |--------------+---------------------------------------------|
          | Range:       | 0-65535                                     |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | These registers store the accumulated call  |
          |              | charge for the first ISDN B channel. S120   |
          |              | stores the Most Significant Byte, and S121  |
          |              | stores the Least Significant Byte. To       |
          |              | obtain the correct value, use S120 * 256 +  |
          |              | S121.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CALL CHARGE - B2                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S122? S123? [cmds]                |
          |--------------+---------------------------------------------|
          | Default:     | Read-only                                   |
          |--------------+---------------------------------------------|
          | Range:       | 0-65535                                     |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | These registers store the accumulated call  |
          |              | charge for the second ISDN B channel. S122  |
          |              | stores the Most Significant Byte, and S123  |
          |              | stores the Least Significant Byte. To       |
          |              | obtain the correct value, use S122 * 256 +  |
          |              | S123.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALLER ID                          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S84=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Controls the Caller ID function of the TA.  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S84=0    | Caller ID enabled.                          |
          |--------------+---------------------------------------------|
          |    S84=16    | Caller ID disabled.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CALLER ID INFORMATION                    |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *T [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the last caller ID information.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CHARACTER LENGTH                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets length of character.                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í *C0     | Set 10-bit character.                       |
          |--------------+---------------------------------------------|
          |     *C1      | Set 11-bit character.                       |
          |--------------+---------------------------------------------|
          |     *C2      | Set 9-bit character.                        |
          |--------------+---------------------------------------------|
          |     *C3      | Set 8-bit character.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           COMPRESSION AND ERROR CORRECTION MODE            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Knn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of data compression used   |
          |              | over ISDN connections.                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K00     | Compression disabled for ISDN calls.        |
          |--------------+---------------------------------------------|
          |     &K44     | V.42bis enabled for ISDN calls.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V0      | Displays current settings.                  |
          |--------------+---------------------------------------------|
          |     &V1      | Displays profile 0.                         |
          |--------------+---------------------------------------------|
          |     &V2      | Displays profile 1.                         |
          |--------------+---------------------------------------------|
          |     &V3      | Displays profile 2.                         |
          |--------------+---------------------------------------------|
          |     &V4      | Displays profile 3.                         |
          |--------------+---------------------------------------------|
          |     &V5      | Displays factory defaults.                  |
          |--------------+---------------------------------------------|
          |     &V6      | Displays analog adapter 1 settings.         |
          |--------------+---------------------------------------------|
          |     &V7      | Displays analog adapter 2 settings.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DEFAULT PHONE NUMBER                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-39                                        |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the default phone number to memory     |
          |              | location n.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DEFAULT PHONE NUMBER                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S29=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-39                                        |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the default phone number to memory     |
          |              | location n.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DES KEY SET                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CKxxxx [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the key to be used for DES encryption. |
          |              | The key must be between 15 and 65           |
          |              | characters.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DIAGNOSTICS                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CG [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Performs modem diagnostics.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#>                              |
          |              |                                             |
          |              | AT [cmds] DYaNb<#>/Zcxxxx/                  |
          |              |                                             |
          |              | AT [cmds] DA/Zcxxxx/                        |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string.           |
          |--------------+---------------------------------------------|
          |   Modifier   |                  Function                   |
          |--------------+---------------------------------------------|
          |      DA      | Dial with analog adapter 1.                 |
          |--------------+---------------------------------------------|
          |      DB      | Dial with analog adapter 2.                 |
          |--------------+---------------------------------------------|
          |      DI      | Dial with ISDN.                             |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number.                        |
          |--------------+---------------------------------------------|
          |    DSm+n     | Number in memory location m dialed. If n is |
          |              | also specified, TA will make a bundled      |
          |              | call.                                       |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection.                                  |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register.                             |
          |--------------+---------------------------------------------|
          |      N0      | Unknown number type.                        |
          |--------------+---------------------------------------------|
          |      N1      | ISDN type number.                           |
          |--------------+---------------------------------------------|
          |      N3      | X.121 data type number.                     |
          |--------------+---------------------------------------------|
          |      N8      | National standard number.                   |
          |--------------+---------------------------------------------|
          |      N9      | Private number.                             |
          |--------------+---------------------------------------------|
          |      Y0      | Unknown number locality.                    |
          |--------------+---------------------------------------------|
          |      Y1      | International number.                       |
          |--------------+---------------------------------------------|
          |      Y2      | National number.                            |
          |--------------+---------------------------------------------|
          |      Y3      | Network number.                             |
          |--------------+---------------------------------------------|
          |      Y4      | Subscriber number.                          |
          |--------------+---------------------------------------------|
          |      Y6      | Abbreviated number.                         |
          |--------------+---------------------------------------------|
          |      Z0      | NSAP subaddress of IA5 characters,          |
          |              | AFI=0x50.                                   |
          |--------------+---------------------------------------------|
          |      Z2      | User specified subaddress of IA5            |
          |              | characters.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DIALING MODE DEFAULT                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects which device the TA will originate  |
          |              | calls with by default.                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &O0      | Originate calls with analog adapter 2.      |
          |--------------+---------------------------------------------|
          |     &O2      | Originate calls with ISDN.                  |
          |--------------+---------------------------------------------|
          |     &O3      | Originate calls with analog adapter 1.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DISPLAY CALL CHARGE                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CH? [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays the number of charge units for the |
          |              | last call.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                DYNAMIC BANDWIDTH ALLOCATION                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CEn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects whether dynamic bandwidth           |
          |              | allocation will be used to allow            |
          |              | simultaneous data and voice calls.          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     CE0      | Dynamic bandwidth allocation disabled.      |
          |--------------+---------------------------------------------|
          |    í CE1     | Dynamic bandwidth allocation enabled.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               ENDPOINT DISCRIMINATOR ADDRESS               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] EPD=<a,b,c,d...s,t> [cmds]        |
          |--------------+---------------------------------------------|
          | Example:     | ATEPD=<284,254,124,62,5>                    |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the endpoint discriminator address for |
          |              | multipoint PPP systems. Up to twenty        |
          |              | numbers may be specified.                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FIRMWARE DOWNLOAD                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] UPX                               |
          |--------------+---------------------------------------------|
          | Description: | Begins an XMODEM download to the modem      |
          |              | firmware.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of flow control to use.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &H0      | Flow control disabled.                      |
          |--------------+---------------------------------------------|
          |    í &H3     | Hardware flow control enabled.              |
          |--------------+---------------------------------------------|
          |     &H4      | Software flow control enabled.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S27=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of flow control to use.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S27=0     | Flow control disabled.                      |
          |--------------+---------------------------------------------|
          |   í S27=24   | Hardware flow control enabled.              |
          |--------------+---------------------------------------------|
          |    S27=32    | Software flow control enabled.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               FLOW CONTROL CHARACTER - XOFF                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S32=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 19                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 ASCII character                           |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL CHARACTER - XON                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S31=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 17                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 ASCII character                           |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            HELP                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $ [cmds]                          |
          |--------------+---------------------------------------------|
          | Description: | Displays help on the basic (no prefix) AT   |
          |              | commands.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        HIGH LAYER COMPATIBILITY - ANALOG ADAPTER 1         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S111=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets high layer compatibility information   |
          |              | for analog adapter 1 in non-1TR6 modes.     |
          |--------------+---------------------------------------------|
          | Note:        | This table should not be used in 1TR6 mode; |
          |              | see SERVICE INDICATOR DETAILS for settings. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S111=0   | High layer compatibility information not    |
          |              | sent.                                       |
          |--------------+---------------------------------------------|
          |    S111=1    | HLC information set to telephone.           |
          |--------------+---------------------------------------------|
          |    S111=4    | HLC information set to fax.                 |
          |--------------+---------------------------------------------|
          |   S111=40    | HLC information set to F.220 Teletex.       |
          |--------------+---------------------------------------------|
          |   S111=49    | HLC information set to F.200 Teletex.       |
          |--------------+---------------------------------------------|
          |   S111=50    | HLC information set to F.300/T110 video     |
          |              | service.                                    |
          |--------------+---------------------------------------------|
          |   S111=53    | HLC information set to F.60 telex.          |
          |--------------+---------------------------------------------|
          |   S111=56    | HLC information set to X.400 message        |
          |              | handling.                                   |
          |--------------+---------------------------------------------|
          |   S111=65    | HLC information set to X.200 OSI            |
          |              | application.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        HIGH LAYER COMPATIBILITY - ANALOG ADAPTER 2         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S108=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets high layer compatibility information   |
          |              | for analog adapter 2 in non-1TR6 modes.     |
          |--------------+---------------------------------------------|
          | Note:        | This table should not be used in 1TR6 mode; |
          |              | see SERVICE INDICATOR DETAILS for settings. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S108=0   | High layer compatibility information not    |
          |              | sent.                                       |
          |--------------+---------------------------------------------|
          |    S108=1    | HLC information set to telephone.           |
          |--------------+---------------------------------------------|
          |    S108=4    | HLC information set to fax.                 |
          |--------------+---------------------------------------------|
          |   S108=40    | HLC information set to F.220 Teletex.       |
          |--------------+---------------------------------------------|
          |   S108=49    | HLC information set to F.200 Teletex.       |
          |--------------+---------------------------------------------|
          |   S108=50    | HLC information set to F.300/T110 video     |
          |              | service.                                    |
          |--------------+---------------------------------------------|
          |   S108=53    | HLC information set to F.60 telex.          |
          |--------------+---------------------------------------------|
          |   S108=56    | HLC information set to X.400 message        |
          |              | handling.                                   |
          |--------------+---------------------------------------------|
          |   S108=65    | HLC information set to X.200 OSI            |
          |              | application.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         HIGH LAYER COMPATIBILITY - ISDN INTERFACE          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S110=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets high layer compatibility information   |
          |              | for the ISDN interface in non-1TR6 modes.   |
          |--------------+---------------------------------------------|
          | Note:        | This table should not be used in 1TR6 mode; |
          |              | see SERVICE INDICATOR DETAILS for settings. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S110=0   | High layer compatibility information not    |
          |              | sent.                                       |
          |--------------+---------------------------------------------|
          |    S110=1    | HLC information set to telephone.           |
          |--------------+---------------------------------------------|
          |    S110=4    | HLC information set to fax.                 |
          |--------------+---------------------------------------------|
          |   S110=40    | HLC information set to F.220 Teletex.       |
          |--------------+---------------------------------------------|
          |   S110=49    | HLC information set to F.200 Teletex.       |
          |--------------+---------------------------------------------|
          |   S110=50    | HLC information set to F.300/T110 video     |
          |              | service.                                    |
          |--------------+---------------------------------------------|
          |   S110=53    | HLC information set to F.60 telex.          |
          |--------------+---------------------------------------------|
          |   S110=56    | HLC information set to X.400 message        |
          |              | handling.                                   |
          |--------------+---------------------------------------------|
          |   S110=65    | HLC information set to X.200 OSI            |
          |              | application.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        HOOK CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Hn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Hangs up ISDN and analog lines.             |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      H0       | Hangs up line currently in use.            |
          |---------------+--------------------------------------------|
          |      H3       | Hangs up analog line 1.                    |
          |---------------+--------------------------------------------|
          |      H4       | Hangs up analog line 2.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      HOOK FLASH TIME                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S56=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 50                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 10ms                                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the amount of time the analog       |
          |              | adapter goes on-hook for a hook flash.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    I-FIELD DATA LENGTH                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S114=n [cmds]                     |
          |              |                                             |
          |              | AT [cmds] S115=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0-65535                                     |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | These registers set the data length for the |
          |              | I-field. S114 stores the Most Significant   |
          |              | Byte, and S115 stores the Least Significant |
          |              | Byte. To set the correct value for S114,    |
          |              | use the formula S114 = INT(value/256). To   |
          |              | set S115, use the formula S115 = value -    |
          |              | S114 * 256.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   ISDN BUNDLE CONNECTION                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects when the modem will attempt to make |
          |              | a two-channel bundle connection.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &J0     | Bundle connections disabled.                |
          |--------------+---------------------------------------------|
          |     &J1      | Bundle connections enabled on answer only.  |
          |--------------+---------------------------------------------|
          |     &J2      | Bundle connections enabled on originate     |
          |              | only.                                       |
          |--------------+---------------------------------------------|
          |     &J3      | Bundle connections enabled.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   ISDN BUNDLE CONNECTION                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S87=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects when the modem will attempt to make |
          |              | a two-channel bundle connection.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S87=0    | Bundle connections disabled.                |
          |--------------+---------------------------------------------|
          |    S87=32    | Bundle connections enabled on answer only.  |
          |--------------+---------------------------------------------|
          |    S87=64    | Bundle connections enabled on originate     |
          |              | only.                                       |
          |--------------+---------------------------------------------|
          |    S87=96    | Bundle connections enabled.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      ISDN PACKET SIZE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CLn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 252                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-2048                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 1 byte                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum packet size for            |
          |              | transmitting data on the ISDN line.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   ISDN SPEED - B-CHANNEL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the base speed that will be used    |
          |              | for ISDN B-channel communications.          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E0     | 64Kbps base speed.                          |
          |--------------+---------------------------------------------|
          |     &E1      | 56Kbps base speed.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  LOCAL SERIAL PORT SPEED                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S18=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets serial port speed.                     |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | Serial port speed follows connect speed.    |
          |--------------+---------------------------------------------|
          |      1       | Sets 921.6Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      2       | Sets 460.8Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      3       | Sets 230.4Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      8       | Sets 115.2Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      9       | Sets 57.6Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      10      | Sets 38.4Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      11      | Sets 19.2Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      12      | Sets 9600bps speed.                         |
          |--------------+---------------------------------------------|
          |      13      | Sets 4800bps speed.                         |
          |--------------+---------------------------------------------|
          |      14      | Sets 2400bps speed.                         |
          |--------------+---------------------------------------------|
          |      15      | Sets 1200bps speed.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           LOCAL SERIAL PORT SPEED ON AUTO-ANSWER           |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S20=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the speed of the local serial port     |
          |              | when the modem auto-answers an incoming     |
          |              | call.                                       |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | Sets 921.6Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      1       | Sets 460.8Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      2       | Sets 230.4Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      3       | Sets 115.2Kbps speed.                       |
          |--------------+---------------------------------------------|
          |      8       | Sets 57.6Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      9       | Sets 38.4Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      10      | Sets 19.2Kbps speed.                        |
          |--------------+---------------------------------------------|
          |      11      | Sets 9600bps speed.                         |
          |--------------+---------------------------------------------|
          |      12      | Sets 4800bps speed.                         |
          |--------------+---------------------------------------------|
          |      13      | Sets 2400bps speed.                         |
          |--------------+---------------------------------------------|
          |      14      | Sets 1200bps speed.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LOOPBACK 4                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CPn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the Loopback 4 function.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í CP0     | Loopback 4 disabled.                        |
          |--------------+---------------------------------------------|
          |     CP1      | Loopback 4 enabled.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   LOOPBACK TEST SIGNALS                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S41=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects whether loopback test signals 140   |
          |              | and 141 on the RS-232 interface will be     |
          |              | used.                                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S41=0     | Loopback test signals disabled.             |
          |--------------+---------------------------------------------|
          |    S41=8     | Loopback test signals enabled.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       METERING PULSE                       |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S89=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 96                                      |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will generate        |
          |              | metering pulses on either of the analog     |
          |              | adapters.                                   |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 3 -  |  0000 | Not used.                                   |
          |  0   |       |                                             |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | Metering pulse disabled on analog adapter   |
          |      |       | 2.                                          |
          |      |     1 |                                             |
          |      |       | Metering pulse enabled on analog adapter 2. |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | Metering pulse disabled on analog adapter   |
          |      |       | 1.                                          |
          |      |     1 |                                             |
          |      |       | Metering pulse enabled on analog adapter 1. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PPP IDLE OUT PREVENTION                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S124=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sends an empty packet to avoid              |
          |              | disconnection on PPP connections.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PREFIX FOR INTERNATIONAL NUMBERS              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CIxxxx [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the prefix that the modem will prepend |
          |              | to international numbers when reporting     |
          |              | them in result codes.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PREFIX FOR LONG-DISTANCE NUMBERS              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CNxxxx [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the prefix that the modem will prepend |
          |              | to long-distance (but not international)    |
          |              | numbers when reporting them in result       |
          |              | codes.                                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PROTOCOL/SPEED - ISDN B-CHANNEL               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bnn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed that will be |
          |              | used for ISDN B-channel communications.     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     B00      | Use X.75 transparent.                       |
          |--------------+---------------------------------------------|
          |     B01      | Use X.75 with T.70.                         |
          |--------------+---------------------------------------------|
          |     B04      | Use X.75 with BTX.                          |
          |--------------+---------------------------------------------|
          |     B10      | Use V.110 autospeed.                        |
          |--------------+---------------------------------------------|
          |     B13      | Use V.110 at 2400bps.                       |
          |--------------+---------------------------------------------|
          |     B14      | Use V.110 at 4800bps.                       |
          |--------------+---------------------------------------------|
          |     B15      | Use V.110 at 9600bps.                       |
          |--------------+---------------------------------------------|
          |     B16      | Use V.110 at 14.4Kbps.                      |
          |--------------+---------------------------------------------|
          |     B17      | Use V.110 at 19.2Kbps.                      |
          |--------------+---------------------------------------------|
          |     B18      | Use V.110 at 38.4Kbps.                      |
          |--------------+---------------------------------------------|
          |     B19      | Use V.110 at 57.6Kbps.                      |
          |--------------+---------------------------------------------|
          |     B20      | Use V.120.                                  |
          |--------------+---------------------------------------------|
          |     B40      | Use PPP asynchronous to HDLC conversion.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PROTOCOL/SPEED - ISDN B-CHANNEL               |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S82=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed that will be |
          |              | used for ISDN B-channel communications.     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S82=60    | Use V.120 at 64Kbps.                        |
          |--------------+---------------------------------------------|
          |    S82=61    | Use V.120 at 56Kbps.                        |
          |--------------+---------------------------------------------|
          |    S82=62    | Use X.75 transparent at 64Kbps.             |
          |--------------+---------------------------------------------|
          |    S82=63    | Use X.75 transparent at 56Kbps.             |
          |--------------+---------------------------------------------|
          |    S82=64    | Use X.75 with T.70 at 64Kbps.               |
          |--------------+---------------------------------------------|
          |    S82=65    | Use X.75 with T.70 at 56Kbps.               |
          |--------------+---------------------------------------------|
          |    S82=70    | Use X.75 with BTX at 64Kbps.                |
          |--------------+---------------------------------------------|
          |    S82=71    | Use X.75 with BTX at 56Kbps.                |
          |--------------+---------------------------------------------|
          |    S82=72    | Use V.110 at 64Kbps.                        |
          |--------------+---------------------------------------------|
          |    S82=73    | Use V.110 at 56Kbps.                        |
          |--------------+---------------------------------------------|
          |    S82=74    | Use PPP asynchronous to HDLC conversion at  |
          |              | 64Kbps.                                     |
          |--------------+---------------------------------------------|
          |    S82=75    | Use PPP asynchronous to HDLC conversion at  |
          |              | 56Kbps.                                     |
          |--------------+---------------------------------------------|
          |    S82=76    | Use SLIP asynchronous to HDLC conversion at |
          |              | 64Kbps.                                     |
          |--------------+---------------------------------------------|
          |    S82=77    | Use SLIP asynchronous to HDLC conversion at |
          |              | 56Kbps.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          PROTOCOL/SPEED - ISDN B-CHANNEL BUNDLING          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S100=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol that will be used for  |
          |              | ISDN B-channel bundling.                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S100=0   | Use Multiple Link Protocol.                 |
          |--------------+---------------------------------------------|
          |    S100=1    | Use cFossil Channel Bundling.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PROTOCOL/SPEED - ISDN D-CHANNEL               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Pn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed that will be |
          |              | used for ISDN D-channel communications.     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í P0     | Use Northern Telecom.                       |
          |--------------+---------------------------------------------|
          |      P1      | Use National ISDN for 1 SPID.               |
          |--------------+---------------------------------------------|
          |      P2      | Use National ISDN for 2 SPIDs.              |
          |--------------+---------------------------------------------|
          |      P4      | Use AT&T point-to-point.                    |
          |--------------+---------------------------------------------|
          |      P5      | Use AT&T multipoint for 1 SPID.             |
          |--------------+---------------------------------------------|
          |      P6      | Use AT&T multipoint for 2 SPIDs.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PROTOCOL/SPEED - ISDN D-CHANNEL               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S86=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed that will be |
          |              | used for ISDN D-channel communications.     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S86=0    | Use Northern Telecom.                       |
          |--------------+---------------------------------------------|
          |    S86=1     | Use National ISDN for 1 SPID.               |
          |--------------+---------------------------------------------|
          |    S86=2     | Use National ISDN for 2 SPIDs.              |
          |--------------+---------------------------------------------|
          |    S86=4     | Use AT&T point-to-point.                    |
          |--------------+---------------------------------------------|
          |    S86=5     | Use AT&T multipoint for 1 SPID.             |
          |--------------+---------------------------------------------|
          |    S86=6     | Use AT&T multipoint for 2 SPIDs.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               PROTOCOL/SPEED - OUTGOING ISDN               |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S102=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed that will be |
          |              | used for outgoing ISDN communications.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   S102=60    | Use V.120 at 64Kbps.                        |
          |--------------+---------------------------------------------|
          |   S102=61    | Use V.120 at 56Kbps.                        |
          |--------------+---------------------------------------------|
          |   S102=62    | Use X.75 transparent at 64Kbps.             |
          |--------------+---------------------------------------------|
          |   S102=63    | Use X.75 transparent at 56Kbps.             |
          |--------------+---------------------------------------------|
          |   S102=64    | Use X.75 with T.70 at 64Kbps.               |
          |--------------+---------------------------------------------|
          |   S102=65    | Use X.75 with T.70 at 56Kbps.               |
          |--------------+---------------------------------------------|
          |   S102=70    | Use X.75 with BTX at 64Kbps.                |
          |--------------+---------------------------------------------|
          |   S102=71    | Use X.75 with BTX at 56Kbps.                |
          |--------------+---------------------------------------------|
          |   S102=72    | Use V.110 at 64Kbps.                        |
          |--------------+---------------------------------------------|
          |   S102=73    | Use V.110 at 56Kbps.                        |
          |--------------+---------------------------------------------|
          |   S102=74    | Use PPP asynchronous to HDLC conversion at  |
          |              | 64Kbps.                                     |
          |--------------+---------------------------------------------|
          |   S102=75    | Use PPP asynchronous to HDLC conversion at  |
          |              | 56Kbps.                                     |
          |--------------+---------------------------------------------|
          |   S102=76    | Use SLIP asynchronous to HDLC conversion at |
          |              | 64Kbps.                                     |
          |--------------+---------------------------------------------|
          |   S102=77    | Use SLIP asynchronous to HDLC conversion at |
          |              | 56Kbps.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information about the TA.          |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      I0       | Displays product code.                     |
          |---------------+--------------------------------------------|
          |      I1       | Displays product information and ROM       |
          |               | checksum.                                  |
          |---------------+--------------------------------------------|
          |      I3       | Displays firmware revision.                |
          |---------------+--------------------------------------------|
          |      I6       | Displays statistics on current connection. |
          |---------------+--------------------------------------------|
          |      I9       | Displays Plug-N-Play code.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE.                                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í Q0     | Result code sending enabled.                |
          |--------------+---------------------------------------------|
          |      Q1      | Result code sending disabled.               |
          |--------------+---------------------------------------------|
          |      Q2      | Result code sending enabled in originate    |
          |              | mode only.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Xn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects which result codes will be          |
          |              | displayed.                                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      X0      | Standard result codes only are enabled.     |
          |--------------+---------------------------------------------|
          |      X1      | Standard and DCE connection speed result    |
          |              | codes are enabled.                          |
          |--------------+---------------------------------------------|
          |      X2      | Standard and DCE connection speed result    |
          |              | codes and dial tone detection are enabled.  |
          |--------------+---------------------------------------------|
          |      X3      | All result codes except dial tone detection |
          |              | are enabled.                                |
          |--------------+---------------------------------------------|
          |      X4      | All result codes are enabled.               |
          |--------------+---------------------------------------------|
          |     í X5     | All result codes plus DTE speed and error   |
          |              | control level are enabled.                  |
          |--------------+---------------------------------------------|
          |      X6      | All result codes plus ARQ are enabled.      |
          |--------------+---------------------------------------------|
          |      X7      | All result codes plus ARQ and error control |
          |              | level are enabled.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 RESULT CODES - ANSWER MODE                 |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S40=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE in answer mode.                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S40=0    | Result code sending in answer mode enabled. |
          |--------------+---------------------------------------------|
          |    S40=2     | Result code sending in answer mode          |
          |              | disabled.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RING VOLUME                         |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] Nn [cmds]                         |
          |--------------+---------------------------------------------|
          | Default:     | 3                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 3                                       |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the volume of the ring sound. N0       |
          |              | disables the ring sound.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            SERVICE INDICATOR - ANALOG ADAPTER 1            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S107=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the 1TR6 Service Indicator for calls   |
          |              | made with analog adapter 1.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S107=1   | Service Indicator set for voice call.       |
          |--------------+---------------------------------------------|
          |    S107=2    | Service Indicator set for data/fax call.    |
          |--------------+---------------------------------------------|
          |    S107=7    | Service Indicator set for ISDN call.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            SERVICE INDICATOR - ANALOG ADAPTER 2            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S104=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the 1TR6 Service Indicator for calls   |
          |              | made with analog adapter 2.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í S104=1   | Service Indicator set for voice call.       |
          |--------------+---------------------------------------------|
          |    S104=2    | Service Indicator set for data/fax call.    |
          |--------------+---------------------------------------------|
          |    S104=7    | Service Indicator set for ISDN call.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  SERVICE INDICATOR - ISDN                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S106=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the 1TR6 Service Indicator for ISDN    |
          |              | calls.                                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S106=1    | Service Indicator set for voice call.       |
          |--------------+---------------------------------------------|
          |    S106=2    | Service Indicator set for data/fax call.    |
          |--------------+---------------------------------------------|
          |   í S106=7   | Service Indicator set for ISDN call.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        SERVICE INDICATOR DETAILS - ANALOG ADAPTER 1        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S111=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets additional details for the 1TR6        |
          |              | Service Indicator for calls made with       |
          |              | analog adapter 1.                           |
          |--------------+---------------------------------------------|
          | Note:        | This table should only be used in 1TR6      |
          |              | mode.                                       |
          |--------------+---------------------------------------------|
          |   Service    |   Command    |           Function           |
          |  Indicator   |              |                              |
          |--------------+--------------+------------------------------|
          |    S107=1    |    S111=1    | Set SI for 3.1KHz digital    |
          |              |              | voice call.                  |
          |--------------+--------------+------------------------------|
          |              |    S111=2    | Set SI for analog voice      |
          |              |              | call.                        |
          |--------------+--------------+------------------------------|
          |    S107=2    |    S111=2    | Set SI for fax call.         |
          |--------------+--------------+------------------------------|
          |              |    S111=3    | Set SI for data call.        |
          |--------------+--------------+------------------------------|
          |              |    S111=4    | Set SI for BTX call.         |
          |--------------+--------------+------------------------------|
          |    S107=7    | Bit  | Value |           Function           |
          |--------------+------+-------+------------------------------|
          |              | 1, 0 |    00 | Set SI for X.75 protocol.    |
          |              |      |       |                              |
          |              |      |    01 | Set SI for asynchronous      |
          |              |      |       | V.110 protocol.              |
          |              |      |    10 |                              |
          |              |      |       | Set SI for asynchronous      |
          |              |      |    11 | V.110 protocol.              |
          |              |      |       |                              |
          |              |      |       | Set SI for synchronous V.110 |
          |              |      |       | protocol.                    |
          |--------------+---------------------------------------------|
          |              |        For V.110 asynchronous mode:         |
          |--------------+---------------------------------------------|
          |              |  2   |     0 | Set SI for 8 data bits.      |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 7 data bits.      |
          |--------------+------+-------+------------------------------|
          |              |  3   |     0 | Set SI for 1 stop bit.       |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 2 stop bits.      |
          |--------------+------+-------+------------------------------|
          |              |  4   |     0 | Set SI for no parity.        |
          |              |      |       |                              |
          |              |      |     1 | Set SI for even parity.      |
          |--------------+------+-------+------------------------------|
          |              | 7-5  |       | Bits 1, 0:   | Bits 1, 0: 10 |
          |              |      |       | 01           |               |
          |--------------+------+-------+--------------+---------------|
          |              |      |   000 | Set speed to | Set speed to  |
          |              |      |       | 1200bps.     | 38.4Kbps.     |
          |--------------+------+-------+------------------------------|
          |              |      |   011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |   100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |   101 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |   110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |   111 | Set speed to 19.2Kbps.       |
          |--------------+---------------------------------------------|
          |              |         For V.110 synchronous mode:         |
          |--------------+---------------------------------------------|
          |              | 3, 2 |    01 | Not used                     |
          |--------------+------+-------+------------------------------|
          |              | 7-4  |  0000 | Set speed to 1200bps.        |
          |              |      |       |                              |
          |              |      |  0011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |  0100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |  0110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |  0111 | Set speed to 19.2Kbps.       |
          |              |      |       |                              |
          |              |      |  1000 | Set speed to 48Kbps.         |
          |              |      |       |                              |
          |              |      |  1001 | Set speed to 56Kbps.         |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 56Kbps on       |
          |              |      |       | 56Kbps line only.            |
          |              |      |  1111 |                              |
          |              |      |       | Negotiate highest common     |
          |              |      |       | speed.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        SERVICE INDICATOR DETAILS - ANALOG ADAPTER 2        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S108=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets additional details for the 1TR6        |
          |              | Service Indicator for calls made with       |
          |              | analog adapter 2.                           |
          |--------------+---------------------------------------------|
          | Note:        | This table should only be used in 1TR6      |
          |              | mode.                                       |
          |--------------+---------------------------------------------|
          |   Service    |   Command    |           Function           |
          |  Indicator   |              |                              |
          |--------------+--------------+------------------------------|
          |    S104=1    |    S108=1    | Set SI for 3.1KHz digital    |
          |              |              | voice call.                  |
          |--------------+--------------+------------------------------|
          |              |    S108=2    | Set SI for analog voice      |
          |              |              | call.                        |
          |--------------+--------------+------------------------------|
          |    S104=2    |    S108=2    | Set SI for fax call.         |
          |--------------+--------------+------------------------------|
          |              |    S108=3    | Set SI for data call.        |
          |--------------+--------------+------------------------------|
          |              |    S108=4    | Set SI for BTX call.         |
          |--------------+--------------+------------------------------|
          |    S104=7    | Bit  | Value |           Function           |
          |--------------+------+-------+------------------------------|
          |              | 1, 0 |    00 | Set SI for X.75 protocol.    |
          |              |      |       |                              |
          |              |      |    01 | Set SI for asynchronous      |
          |              |      |       | V.110 protocol.              |
          |              |      |    10 |                              |
          |              |      |       | Set SI for asynchronous      |
          |              |      |    11 | V.110 protocol.              |
          |              |      |       |                              |
          |              |      |       | Set SI for synchronous V.110 |
          |              |      |       | protocol.                    |
          |--------------+---------------------------------------------|
          |              |        For V.110 asynchronous mode:         |
          |--------------+---------------------------------------------|
          |              |  2   |     0 | Set SI for 8 data bits.      |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 7 data bits.      |
          |--------------+------+-------+------------------------------|
          |              |  3   |     0 | Set SI for 1 stop bit.       |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 2 stop bits.      |
          |--------------+------+-------+------------------------------|
          |              |  4   |     0 | Set SI for no parity.        |
          |              |      |       |                              |
          |              |      |     1 | Set SI for even parity.      |
          |--------------+------+-------+------------------------------|
          |              | 7-5  |       | Bits 1, 0:   | Bits 1, 0: 10 |
          |              |      |       | 01           |               |
          |--------------+------+-------+--------------+---------------|
          |              |      |   000 | Set speed to | Set speed to  |
          |              |      |       | 1200bps.     | 38.4Kbps.     |
          |--------------+------+-------+------------------------------|
          |              |      |   011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |   100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |   101 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |   110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |   111 | Set speed to 19.2Kbps.       |
          |--------------+---------------------------------------------|
          |              |         For V.110 synchronous mode:         |
          |--------------+---------------------------------------------|
          |              | 3, 2 |    01 | Not used                     |
          |--------------+------+-------+------------------------------|
          |              | 7-4  |  0000 | Set speed to 1200bps.        |
          |              |      |       |                              |
          |              |      |  0011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |  0100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |  0110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |  0111 | Set speed to 19.2Kbps.       |
          |              |      |       |                              |
          |              |      |  1000 | Set speed to 48Kbps.         |
          |              |      |       |                              |
          |              |      |  1001 | Set speed to 56Kbps.         |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 56Kbps on       |
          |              |      |       | 56Kbps line only.            |
          |              |      |  1111 |                              |
          |              |      |       | Negotiate highest common     |
          |              |      |       | speed.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          SERVICE INDICATOR DETAILS - ISDN ADAPTER          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S110=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets additional details for the 1TR6        |
          |              | Service Indicator for calls made with the   |
          |              | ISDN interface.                             |
          |--------------+---------------------------------------------|
          | Note:        | This table should only be used in 1TR6      |
          |              | mode.                                       |
          |--------------+---------------------------------------------|
          |   Service    |   Command    |           Function           |
          |  Indicator   |              |                              |
          |--------------+--------------+------------------------------|
          |    S106=1    |    S110=1    | Set SI for 3.1KHz digital    |
          |              |              | voice call.                  |
          |--------------+--------------+------------------------------|
          |              |    S110=2    | Set SI for analog voice      |
          |              |              | call.                        |
          |--------------+--------------+------------------------------|
          |    S106=2    |    S110=2    | Set SI for fax call.         |
          |--------------+--------------+------------------------------|
          |              |    S110=3    | Set SI for data call.        |
          |--------------+--------------+------------------------------|
          |              |    S110=4    | Set SI for BTX call.         |
          |--------------+--------------+------------------------------|
          |    S106=7    | Bit  | Value |           Function           |
          |--------------+------+-------+------------------------------|
          |              | 1, 0 |    00 | Set SI for X.75 protocol.    |
          |              |      |       |                              |
          |              |      |    01 | Set SI for asynchronous      |
          |              |      |       | V.110 protocol.              |
          |              |      |    10 |                              |
          |              |      |       | Set SI for asynchronous      |
          |              |      |    11 | V.110 protocol.              |
          |              |      |       |                              |
          |              |      |       | Set SI for synchronous V.110 |
          |              |      |       | protocol.                    |
          |--------------+---------------------------------------------|
          |              |        For V.110 asynchronous mode:         |
          |--------------+---------------------------------------------|
          |              |  2   |     0 | Set SI for 8 data bits.      |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 7 data bits.      |
          |--------------+------+-------+------------------------------|
          |              |  3   |     0 | Set SI for 1 stop bit.       |
          |              |      |       |                              |
          |              |      |     1 | Set SI for 2 stop bits.      |
          |--------------+------+-------+------------------------------|
          |              |  4   |     0 | Set SI for no parity.        |
          |              |      |       |                              |
          |              |      |     1 | Set SI for even parity.      |
          |--------------+------+-------+------------------------------|
          |              | 7-5  |       | Bits 1, 0:   | Bits 1, 0: 10 |
          |              |      |       | 01           |               |
          |--------------+------+-------+--------------+---------------|
          |              |      |   000 | Set speed to | Set speed to  |
          |              |      |       | 1200bps.     | 38.4Kbps.     |
          |--------------+------+-------+------------------------------|
          |              |      |   011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |   100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |   101 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |   110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |   111 | Set speed to 19.2Kbps.       |
          |--------------+---------------------------------------------|
          |              |         For V.110 synchronous mode:         |
          |--------------+---------------------------------------------|
          |              | 3, 2 |    01 | Not used                     |
          |--------------+------+-------+------------------------------|
          |              | 7-4  |  0000 | Set speed to 1200bps.        |
          |              |      |       |                              |
          |              |      |  0011 | Set speed to 2400bps.        |
          |              |      |       |                              |
          |              |      |  0100 | Set speed to 4800bps.        |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 9600bps.        |
          |              |      |       |                              |
          |              |      |  0110 | Set speed to 14.4Kbps.       |
          |              |      |       |                              |
          |              |      |  0111 | Set speed to 19.2Kbps.       |
          |              |      |       |                              |
          |              |      |  1000 | Set speed to 48Kbps.         |
          |              |      |       |                              |
          |              |      |  1001 | Set speed to 56Kbps.         |
          |              |      |       |                              |
          |              |      |  1010 | Set speed to 56Kbps on       |
          |              |      |       | 56Kbps line only.            |
          |              |      |  1111 |                              |
          |              |      |       | Negotiate highest common     |
          |              |      |       | speed.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERVICE PROFILE ID NUMBER                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] SPIDn=aaaa [cmds]                 |
          |--------------+---------------------------------------------|
          | Description: | Sets service profile ID number n to aaaa.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         SOFT RESET                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Zn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Restores modem profiles previously saved in |
          |              | non-volatile RAM using the &W command.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Z0      | Restore profile 0.                          |
          |--------------+---------------------------------------------|
          |      Z1      | Restore profile 1.                          |
          |--------------+---------------------------------------------|
          |      Z2      | Restore profile 2.                          |
          |--------------+---------------------------------------------|
          |      Z3      | Restore profile 3.                          |
          |--------------+---------------------------------------------|
          |      Z4      | Restore factory defaults and use them as    |
          |              | power-on defaults.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    STATUS REGISTER BIT                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | Read: AT [cmds] Sn.m=0 or 1 [cmds]          |
          |              |                                             |
          |              | Write: AT [cmds] Sn.m=? [cmds]              |
          |--------------+---------------------------------------------|
          | Example:     | AT S40.4=1 S51.3?<CR>                       |
          |--------------+---------------------------------------------|
          | Description: | Sets/clears or reads bit m of register n.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Performs test modes.                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T0      | End current test.                           |
          |--------------+---------------------------------------------|
          |     &T9      | Begin ISDN loopback.                        |
          |--------------+---------------------------------------------|
          |     &T10     | Begin ISDN loopback and self-test.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   TEST MODES IN PROGRESS                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16? [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Returns a value indicating any test modes   |
          |              | in progress.                                |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | No test in progress.                        |
          |--------------+---------------------------------------------|
          |      1       | Loopback test in progress.                  |
          |--------------+---------------------------------------------|
          |      9       | ISDN loopback test in progress.             |
          |--------------+---------------------------------------------|
          |      10      | ISDN loopback test and self-test in         |
          |              | progress.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      TRANSMIT MESSAGE                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Tnxxxx [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sends a text message xxxx to the remote     |
          |              | modem with the specified protocol. If no    |
          |              | parameters are specified, the last message  |
          |              | will be retransmitted.                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      T0      | Send in user-defined protocol.              |
          |--------------+---------------------------------------------|
          |      T1      | Send in OSI high-layer protocol.            |
          |--------------+---------------------------------------------|
          |      T2      | Send in X.244.                              |
          |--------------+---------------------------------------------|
          |      T3      | Used for system management.                 |
          |--------------+---------------------------------------------|
          |     í T4     | Send in IA5 format.                         |
          |--------------+---------------------------------------------|
          |      T7      | Send in ITU-T V.120 protocol.               |
          |--------------+---------------------------------------------|
          |      T8      | Send in Q.931 call control protocol.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        V.110 SPEED                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S117=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the speed that will be used for     |
          |              | V.110 communications.                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S117=0    | V.110 autospeed.                            |
          |--------------+---------------------------------------------|
          |    S117=3    | V.110 at 2400bps.                           |
          |--------------+---------------------------------------------|
          |    S117=4    | V.110 at 4800bps.                           |
          |--------------+---------------------------------------------|
          |    S117=5    | V.110 at 9600bps.                           |
          |--------------+---------------------------------------------|
          |    S117=6    | V.110 at 14.4Kbps.                          |
          |--------------+---------------------------------------------|
          |    S117=7    | V.110 at 19.2Kbps.                          |
          |--------------+---------------------------------------------|
          |    S117=8    | V.110 at 38.4Kbps.                          |
          |--------------+---------------------------------------------|
          |    S117=9    | V.110 at 57.6Kbps.                          |
          +------------------------------------------------------------+