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       # MULTI-TECH SYSTEMS, INC.
       
          MT932EAI
       
          Card Type              Modem (synchronous/asynchronous)        
          Chip Set               Unidentified                            
          Maximum Data Rate      9600bps                                 
          Data Bus               External                                
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.23,        
                                 V.25bis, V.32                           
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function     | Label  |     Function     |    Label    |
          |------------------------------------------------------------|
          | DC power             |   CN1    | Volume            |  R1  |
          |----------------------+----------+-------------------+------|
          | RS-232/422           |   CN2    | Power switch      | SW1  |
          |----------------------+----------+-------------------+------|
          | Line out             |   CN3    | Speed switch      | SW2  |
          |----------------------+----------+-------------------+------|
          | Line in              |   CN4    | Voice/data switch | SW3  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                 Setting                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | í CTS normal                            | SW4/A |   Off    |
          |-----------------------------------------+-------+----------|
          | CTS forced high                         | SW4/A |    On    |
          |-----------------------------------------+-------+----------|
          | í Dial-up line                          | SW4/B |    On    |
          |-----------------------------------------+-------+----------|
          | Leased line                             | SW4/B |   Off    |
          |-----------------------------------------+-------+----------|
          | í External clock (Synchronous mode)     | SW4/C |   Off    |
          |                                         |       |          |
          | Multi-Tech response code (Asynchronous  |       |          |
          | mode)                                   |       |          |
          |-----------------------------------------+-------+----------|
          | Internal clock (Synchronous mode)       | SW4/C |    On    |
          |                                         |       |          |
          | Hayes response code (Asynchronous mode) |       |          |
          |-----------------------------------------+-------+----------|
          | í Asynchronous mode                     | SW4/D |   Off    |
          |-----------------------------------------+-------+----------|
          | Synchronous mode                        | SW4/D |    On    |
          |-----------------------------------------+-------+----------|
          | í DTR forced high                       | SW5/A |    On    |
          |-----------------------------------------+-------+----------|
          | DTR normal                              | SW5/A |   Off    |
          |-----------------------------------------+-------+----------|
          | í Verbose result code (Asynchronous     | SW5/B |    On    |
          | mode)                                   |       |          |
          |                                         |       |          |
          | Analog loopback test enabled when SW4/B |       |          |
          | is on (Synchronous mode)                |       |          |
          |-----------------------------------------+-------+----------|
          | Numeric result code (Asynchronous mode) | SW5/B |   Off    |
          |                                         |       |          |
          | Analog loopback test disabled when      |       |          |
          | SW4/B is off (Synchronous mode)         |       |          |
          |-----------------------------------------+-------+----------|
          | í Result code sending enabled           | SW5/C |   Off    |
          | (Asynchronous mode)                     |       |          |
          |                                         |       |          |
          | Remote loopback test enabled            |       |          |
          | (Synchronous mode)                      |       |          |
          |-----------------------------------------+-------+----------|
          | Result code sending disabled            | SW5/C |    On    |
          | (Asynchronous mode)                     |       |          |
          |                                         |       |          |
          | Remote loopback test disabled           |       |          |
          | (Synchronous mode)                      |       |          |
          |-----------------------------------------+-------+----------|
          | í Local echo enabled (Asynchronous      | SW5/D |    On    |
          | mode)                                   |       |          |
          |                                         |       |          |
          | Local Digital loopback test enabled     |       |          |
          | (Synchronous mode)                      |       |          |
          |-----------------------------------------+-------+----------|
          | Local echo disabled (Asynchronous mode) | SW5/D |   Off    |
          |                                         |       |          |
          | Local Digital loopback test disabled    |       |          |
          | (Synchronous mode)                      |       |          |
          |-----------------------------------------+-------+----------|
          | í Auto-answer enabled (Dial-up mode)    | SW5/E |    On    |
          |                                         |       |          |
          | Answer mode (Leased line mode)          |       |          |
          |-----------------------------------------+-------+----------|
          | Auto-answer disabled (Dial-up mode)     | SW5/E |   Off    |
          |                                         |       |          |
          | Originate mode (Leased line mode)       |       |          |
          |-----------------------------------------+-------+----------|
          | í CD/DSR signals normal                 | SW5/F |    On    |
          |-----------------------------------------+-------+----------|
          | CD/DSR signals forced high              | SW5/F |   Off    |
          |-----------------------------------------+-------+----------|
          | í RTS forced high                       | SW5/G |   Off    |
          |-----------------------------------------+-------+----------|
          | RTS normal                              | SW5/G |    On    |
          |-----------------------------------------+-------+----------|
          | í Smart mode                            | SW5/H |   Off    |
          |-----------------------------------------+-------+----------|
          | Dumb mode                               | SW5/H |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAL-UP/LEASE LINE                     |
          |------------------------------------------------------------|
          |          Setting           |              JP4              |
          |----------------------------+-------------------------------|
          |         í Dial-up          |   Pins 3 & 5, 4 & 6 closed    |
          |----------------------------+-------------------------------|
          |         Lease line         |   Pins 1 & 3, 2 & 4 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DSR                             |
          |------------------------------------------------------------|
          |            Setting            |            JP3             |
          |-------------------------------+----------------------------|
          |       í DSR follows CD        |     Pins 1 & 2 closed      |
          |-------------------------------+----------------------------|
          |     DSR follows off-hook      |     Pins 2 & 3 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           MI/MIC                           |
          |------------------------------------------------------------|
          |          Setting           |              JP5              |
          |----------------------------+-------------------------------|
          |     í MI/MIC disabled      |   Pins 3 & 5, 4 & 6 closed    |
          |----------------------------+-------------------------------|
          |       MI/MIC enabled       |   Pins 1 & 3, 2 & 4 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          RTS/CTS                           |
          |------------------------------------------------------------|
          |           Setting            |             JP2             |
          |------------------------------+-----------------------------|
          |      í CTS follows RTS       |      Pins 1 & 2 closed      |
          |------------------------------+-----------------------------|
          |       CTS forced high        |      Pins 2 & 3 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          SDLC/BSC                          |
          |------------------------------------------------------------|
          |          Setting           |              JP1              |
          |----------------------------+-------------------------------|
          |           í SDLC           |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |            BSC             |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          |  LED  | Color |  Status  |            Condition            |
          |-------+-------+----------+---------------------------------|
          |  SD   |  Red  |    On    |   Modem is transmitting data    |
          |-------+-------+----------+---------------------------------|
          |  SD   |  Red  |   Off    | Modem is not transmitting data  |
          |-------+-------+----------+---------------------------------|
          |  RD   |  Red  |    On    |     Modem is receiving data     |
          |-------+-------+----------+---------------------------------|
          |  RD   |  Red  |   Off    |   Modem is not receiving data   |
          |-------+-------+----------+---------------------------------|
          |  CD   |  Red  |    On    |     Carrier signal detected     |
          |-------+-------+----------+---------------------------------|
          |  CD   |  Red  |   Off    |   Carrier signal not detected   |
          |-------+-------+----------+---------------------------------|
          |  CD   |  Red  | Blinking |       Modem is retraining       |
          |-------+-------+----------+---------------------------------|
          |  96   |  Red  |    On    |   Modem connected at 9600bps    |
          |-------+-------+----------+---------------------------------|
          |  96   |  Red  |   Off    | Modem not connected at 9600bps  |
          |-------+-------+----------+---------------------------------|
          |  24   |  Red  |    On    |    Modem connected at 24Kbps    |
          |-------+-------+----------+---------------------------------|
          |  24   |  Red  |   Off    |  Modem not connected at 24Kbps  |
          |-------+-------+----------+---------------------------------|
          |  12   |  Red  |    On    |   Modem connected at 1200bps    |
          |-------+-------+----------+---------------------------------|
          |  12   |  Red  |   Off    | Modem not connected at 1200bps  |
          |-------+-------+----------+---------------------------------|
          |  OH   |  Red  |    On    |        Modem is off-hook        |
          |-------+-------+----------+---------------------------------|
          |  OH   |  Red  |   Off    |        Modem is on-hook         |
          |-------+-------+----------+---------------------------------|
          |  TR   |  Red  |    On    |       DTR signal is high        |
          |-------+-------+----------+---------------------------------|
          |  TR   |  Red  |   Off    |        DTR signal is low        |
          |------------------------------------------------------------|
          |      Note: If LED 96, 24, and 12 are on the modem is       |
          |      connected at 300bps. If LED 96 and 24 are on the      |
          |      modem is connected at 4800bps. If LED 96, 24, or 12   |
          |      are blinking 3 times a second then V.42 is enabled at |
          |      that speed. If LED 96, 24, or 12 are blinking 1 time  |
          |      a second then data compression is enabled at that     |
          |      speed.                                                |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                         ATTENTION                          |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds]                                   |
          |--------------+---------------------------------------------|
          | Description: | Tells the modem that a command follows      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           ANSWER                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] A                                 |
          |--------------+---------------------------------------------|
          | Description: | Enables answer mode, the modem goes         |
          |              | off-hook                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  REPEAT PREVIOUS COMMAND                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | A/                                          |
          |--------------+---------------------------------------------|
          | Description: | Repeats previous command                    |
          |--------------+---------------------------------------------|
          | Note:        | Do not precede this command with AT, or     |
          |              | follow it with <CR>                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           REDIAL                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | A:                                          |
          |--------------+---------------------------------------------|
          | Description: | Redials the last number dialed until it is  |
          |              | no longer busy or 10 attempts are made      |
          |--------------+---------------------------------------------|
          | Note:        | Do not precede this command with AT or      |
          |              | follow it with <CR>                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          AUTO-RELIABLE TIME BUFFER CONFIGURATION           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the handling of incoming data      |
          |              | during auto-reliable time period            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $A0     | Data is discarded                           |
          |--------------+---------------------------------------------|
          |     $A1      | Data is buffered                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     HANDSHAKE ATTEMPTS                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures the initial handshake phase.     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     #A0      | Attempts in order: 9600bps, 4800bps,        |
          |              | 2400bps, 1200bps and 300bps                 |
          |--------------+---------------------------------------------|
          |    í #A1     | Attempts in order: 9600bps, 2400bps,        |
          |              | 1200bps and 300bps                          |
          |--------------+---------------------------------------------|
          |     #A2      | Attempts V.32 connection in order: 9600bps  |
          |              | and 4800bps                                 |
          |--------------+---------------------------------------------|
          |     #A3      | Attempts V.22 connection in order: 2400bps, |
          |              | 1200bps and 300bps                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       BLIND DIALING                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects blind dial or wait-for-dial-tone    |
          |--------------+---------------------------------------------|
          | Note:        | Use with AT&Q0 and AT&Q2                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      B0      | Modem will blind dial (Default for MT932EA) |
          |--------------+---------------------------------------------|
          |     í B1     | Modem will wait for dial tone before        |
          |              | dialing                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        ANSWER TONE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the answer tone used for data calls |
          |--------------+---------------------------------------------|
          | Note:        | Use with AT&Q1 and AT&Q3                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     í B0     | ITU-T answer tone (Default for MT932EA)     |
          |--------------+---------------------------------------------|
          |      B1      | Bell answer tone                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BUFFER SIZE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the modem’s transmit/receive buffer |
          |              | size                                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &B0     | Normal buffer size                          |
          |--------------+---------------------------------------------|
          |     &B1      | Small buffer size                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            MAXIMUM BLOCK SIZE FOR TRANSMISSION             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &BSn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum transmittable block size   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &BS0     | Maximum block size is 64 characters         |
          |--------------+---------------------------------------------|
          |    í &BS1    | Maximum block size is 256 characters        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      LOCK SERIAL PORT                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $BAn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Sets operation of serial port speed         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $BA0    | Serial speed locked at rate set by $SB      |
          |--------------+---------------------------------------------|
          |     $BA1     | Serial speed follows connect speed ignoring |
          |              | $SB                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CD SIGNAL                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures the behavior of the carrier      |
          |              | detect signal                               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &C0      | CD forced high                              |
          |--------------+---------------------------------------------|
          |    í &C1     | CD normal                                   |
          |--------------+---------------------------------------------|
          |     &C2      | CD forced high except during disconnect     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence. The maximum characters that can   |
          |              | be use is 60 including modifiers.           |
          |--------------+---------------------------------------------|
          |   Modifier   |                  Function                   |
          |--------------+---------------------------------------------|
          |      P       | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      R       | Answer mode enabled originate mode disabled |
          |              | following handshake initiation              |
          |--------------+---------------------------------------------|
          |      T       | Tone dialing enabled                        |
          |--------------+---------------------------------------------|
          |      W       | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      ,       | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      !       | Flash function initiated. Modem commanded   |
          |              | to go off-hook for half a second before     |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      @       | Wait for Quiet Answer function enabled.     |
          |              | Modem waits until a "quiet answer", a       |
          |              | ring-back signal followed by silence up to  |
          |              | the time specified in S7, is received prior |
          |              | to executing the rest of the dial string.   |
          |--------------+---------------------------------------------|
          |      ;       | Modem returned to command state after       |
          |              | dialing. The semicolon can only be placed   |
          |              | at the end of the dial command.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     STORE PHONE NUMBER                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#>Nn                            |
          |--------------+---------------------------------------------|
          | Example:     | ATD5551212N1                                |
          |--------------+---------------------------------------------|
          | Description: | Stores a phone number in the modem’s memory |
          |              | (n=0-9)                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DTR                             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      &D0      | Modem does not respond to DTR              |
          |---------------+--------------------------------------------|
          |      &D1      | Modem goes to command mode after DTR goes  |
          |               | is off                                     |
          |---------------+--------------------------------------------|
          |     í &D2     | Modem goes to command mode and disconnects |
          |               | (hangs up) after DTR goes off; Auto-Answer |
          |               | is disabled.                               |
          |---------------+--------------------------------------------|
          |      &D3      | Modem is initialized after DTR goes off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DTR DIALING                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the DTR dialing function            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $D0     | DTR dialing disabled                        |
          |--------------+---------------------------------------------|
          |     $D1      | DTR dialing enabled                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            ECHO                            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] En [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to echo commands received     |
          |              | from the DTE                                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      E0      | Echo function disabled                      |
          |--------------+---------------------------------------------|
          |     í E1     | Echo function enabled                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         V.42 MODE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures the operation of V.42 mode       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &E0      | Error correction disabled normal mode       |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |    í &E1     | V.42 set to auto-reliable mode              |
          |--------------+---------------------------------------------|
          |     &E2      | V.42 set to reliable mode                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FLOW CONTROL TYPE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets type of flow control used by modem     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E3     | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &E4      | CTS/RTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &E5      | XON/XOFF flow control enabled               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   XON/XOFF PASS-THROUGH                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects whether XON/XOFF signals are sent   |
          |              | to remote modem                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E6     | XON/XOFF signals trapped by local modem     |
          |--------------+---------------------------------------------|
          |     &E7      | XON/XOFF passed through local modem         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   FLOW CONTROL - ENQ/ACK                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects ENQ/ACK pacing                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E8     | Enables ENQ/ACK pacing                      |
          |--------------+---------------------------------------------|
          |     &E9      | Disables ENQ/ACK pacing                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL IN NORMAL MODE                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects XON/XOFF flow control for           |
          |              | non-error-correcting connections            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E10    | XON/XOFF disabled for non-error-correcting  |
          |              | connections                                 |
          |--------------+---------------------------------------------|
          |     &E11     | XON/XOFF enabled for non-error-correcting   |
          |              | connections                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects flow control                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &E12     | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |    í &E13    | Flow control enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &E14     | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |    í &E15    | Data compression enabled                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    ASYNCHRONOUS FORMAT                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $EBn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects 10- or 11-bits for asynchronous     |
          |              | mode                                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $EB0    | Sets 10-bit asynchronous format             |
          |--------------+---------------------------------------------|
          |     $EB1     | Sets 11-bit asynchronous format             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          FALLBACK                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls fallback                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í #F0     | Fallback disabled                           |
          |--------------+---------------------------------------------|
          |     #F1      | Fallback from 9600bps to 4800bps as line    |
          |              | quality degrades                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      FACTORY DEFAULTS                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Loads factory defaults from ROM and DIP     |
          |              | switches settings                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              AUTO-RELIABLE FALLBACK CHARACTER              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls whether the modem will react to    |
          |              | <CR> while in auto-reliable mode            |
          |--------------+---------------------------------------------|
          | Note:        | In auto-reliable mode the modem is given 4  |
          |              | seconds to make a connection in reliable    |
          |              | mode, if <CR> is received during the 4      |
          |              | seconds the modem will establish a          |
          |              | connection in normal mode.                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     $F0      | Establish a connection using error          |
          |              | correction                                  |
          |--------------+---------------------------------------------|
          |    í $F1     | Switch to normal mode on receipt of <CR>    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         GUARD TONE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Commands the modem to transmit a guard tone |
          |              | in V.22/V.22bis                             |
          |--------------+---------------------------------------------|
          | Note:        | Used primarily for international data       |
          |              | transmission                                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &G0     | Guard tone disabled                         |
          |--------------+---------------------------------------------|
          |     &G1      | 550Hz guard tone enabled                    |
          |--------------+---------------------------------------------|
          |     &G2      | 1800Hz guard tone enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        HELP SCREENS                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT $Hn                                      |
          |--------------+---------------------------------------------|
          | Description: | Displays modem help screens                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     $H1      | Displays help screen 1                      |
          |--------------+---------------------------------------------|
          |     $H2      | Displays help screen 2                      |
          |--------------+---------------------------------------------|
          |     $H3      | Displays help screen 3                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports modem ID number                     |
          |--------------+---------------------------------------------|
          |      I1      | Reports firmware revision number            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           LISTS                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Ln [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays requested lists                    |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |       L       | Displays all phone numbers stored in       |
          |               | memory                                     |
          |---------------+--------------------------------------------|
          |      L5       | Display current operating parameters       |
          |---------------+--------------------------------------------|
          |      L6       | Displays current S-register settings       |
          |---------------+--------------------------------------------|
          |      L7       | Displays additional parameters             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      COMPRESSION MODE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects active compression protocols        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     #L0      | LAP-M/MNP negotiation enabled (default for  |
          |              | MT932EAI)                                   |
          |--------------+---------------------------------------------|
          |     #L1      | MNP negotiation only enabled                |
          |--------------+---------------------------------------------|
          |     #L2      | LAP-M negotiation only enabled              |
          |--------------+---------------------------------------------|
          |     #L3      | LAP-M enabled, no negotiation               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode                 |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |    í &M0     | Asynchronous mode when on-line              |
          |--------------+---------------------------------------------|
          |     &M1      | Synchronous mode when on-line               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CONNECT SPEED                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT $MBnnn                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets maximum connect speed                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    $MB75     | Sets V.23 mode (1200bps/75bps               |
          |              | bi-directional)                             |
          |--------------+---------------------------------------------|
          |    $MB300    | Sets 300bps connect                         |
          |--------------+---------------------------------------------|
          |   $MB1200    | Sets 1200bps connect                        |
          |--------------+---------------------------------------------|
          |   $MB2400    | Sets 2400bps connect                        |
          |--------------+---------------------------------------------|
          |   $MB4800    | Sets 4800bps connect                        |
          |--------------+---------------------------------------------|
          |  í $MB9600   | Sets 9600bps connect                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           MI/MIC                           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $MIn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Controls MI/MIC option                      |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |      $MI0      | MI/MIC option disabled                    |
          |----------------+-------------------------------------------|
          |      $MI1      | MI/MIC option enabled                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DIAL STORED PHONE NUMBER                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Nn                                |
          |--------------+---------------------------------------------|
          | Description: | Dials stored phone number n. (n=0-9)        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             DIAL STORED PHONE NUMBER - LINKED              |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] NxNy                              |
          |--------------+---------------------------------------------|
          | Description: | Dials stored phone number x (x=0-9). If the |
          |              | number is busy (x), the modem will proceed  |
          |              | to the next number selected (y) (y=0-9).    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT &Qn                                      |
          |--------------+---------------------------------------------|
          | Description: | Selects standard Hayes or Multi-Tech result |
          |              | code sets with ATXn command                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &Q0      | Multi-Tech result codes/Blind dialing       |
          |              | (ATBn) enabled, use ATX0-1                  |
          |--------------+---------------------------------------------|
          |     &Q1      | Standard Hayes result codes/Answer tone     |
          |              | selection (ATBn) enabled, use ATX2-4        |
          |--------------+---------------------------------------------|
          |     &Q2      | Multi-Tech result codes enabled/Blind       |
          |              | dialing (ATBn) enabled, use ATX2-4          |
          |--------------+---------------------------------------------|
          |    í &Q3     | Multi-Tech result codes/Answer tone         |
          |              | selection (ATBn) enabled, use ATX2-4        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   RETRANSMIT FAIL ACTION                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls whether the modem gives up on a    |
          |              | bad connection                              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $R0     | Hang up after 12 failed retransmission’s    |
          |--------------+---------------------------------------------|
          |     $R1      | Do not hang up after 12 failed              |
          |              | retransmission’s                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      STATUS-REGISTER                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | Read: AT [cmds] Sn? [cmds]                  |
          |              |                                             |
          |              | Write: AT [cmds] Sn=x [cmds]                |
          |--------------+---------------------------------------------|
          | Description: | Writes to or reads from a specified         |
          |              | register                                    |
          |--------------+---------------------------------------------|
          | Note:        | (n=0-16, 18, 24, 25), (x=decimal format);   |
          |              | when reading the value of a register it is  |
          |              | shown in a 3-digit decimal format.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  LOCAL SERIAL PORT SPEED                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $SBnnn [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets serial port speed                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    $SB300    | Sets 300bps speed                           |
          |--------------+---------------------------------------------|
          |   $SB1200    | Sets 1200bps speed                          |
          |--------------+---------------------------------------------|
          |   $SB2400    | Sets 2400bps speed                          |
          |--------------+---------------------------------------------|
          |   $SB4800    | Sets 4800bps speed                          |
          |--------------+---------------------------------------------|
          |  í $SB9600   | Sets 9600bps speed                          |
          |--------------+---------------------------------------------|
          |   $SB19200   | Sets 19.2Kbps speed                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        SPEED SWITCH                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the speed switch setting               |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     í %S0     | Speed switch set to 9600/1200/2400bps      |
          |---------------+--------------------------------------------|
          |      %S1      | Speed switch set to 9600/4800/2400bps      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T4      | Grant remote digital loopback request       |
          |--------------+---------------------------------------------|
          |    í &T5     | Deny remote digital loopback request        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     TRELLIS MODULATION                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls Trellis Coded Modulation           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     #T0      | Disables TCM                                |
          |--------------+---------------------------------------------|
          |    í #T1     | Enables TCM                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     LOOPBACK TEST MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Un [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Performs test modes                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      U0      | Begin local analog loopback test in         |
          |              | originate mode                              |
          |--------------+---------------------------------------------|
          |      U1      | Begin local analog loopback test in answer  |
          |              | mode                                        |
          |--------------+---------------------------------------------|
          |      U2      | Request remote digital loopback             |
          |--------------+---------------------------------------------|
          |      U3      | Begin local digital loopback                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DIALING MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $VDn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects voice/data mode dialing             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $VD0    | Disables voice/data mode                    |
          |--------------+---------------------------------------------|
          |     $VD1     | Enables voice/data mode                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    STORE ACTIVE PROFILE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Wn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Writes the parameters for the active        |
          |              | profile into the non-volatile RAM           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &W0      | Parameters stored in NVRAM                  |
          |--------------+---------------------------------------------|
          |    í &W1     | Parameters not stored in NVRAM              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SELECT CALL PROGRESS RESULT CODES              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Xn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables selection of tone detection and     |
          |              | associated result code format options       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í X0     | Busy and dial tone detection disabled;      |
          |              | result codes 0 - 4 enabled.                 |
          |--------------+---------------------------------------------|
          |      X1      | Busy and dial tone detection disabled;      |
          |              | result codes 0 - 5 & 10 enabled.            |
          |--------------+---------------------------------------------|
          |      X2      | Busy tone detection disabled, dial tone     |
          |              | detection enabled; result codes 0 - 6 & 10  |
          |              | enabled.                                    |
          |--------------+---------------------------------------------|
          |      X3      | Busy tone detection enabled, dial tone      |
          |              | detection disabled; result codes 0 - 5, 7 & |
          |              | 10 enabled.                                 |
          |--------------+---------------------------------------------|
          |      X4      | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 7 & 10 enabled.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            CLOCK SOURCE - SYNCHRONOUS TRANSMIT             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Xn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DTE transmit clock source           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &X0     | Modem generates clock                       |
          |--------------+---------------------------------------------|
          |     &X1      | DTE generates clock                         |
          |--------------+---------------------------------------------|
          |     &X2      | Modem generates clock from the receive      |
          |              | carrier signal                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK TIME                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S17=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 25                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .01 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets break time to DTE                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DSR/CTS/CD TIMEOUT                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S24=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 20                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .05 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the time to drop the DSR, CTS, and CD  |
          |              | signals to hang-up                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DTR TIMEOUT                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S25=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets the time to drop the DTR signal to     |
          |              | hang-up                                     |
          |--------------+---------------------------------------------|
          | Note:        | Setting S25 to 0 sets the DTR time-out to   |
          |              | .05 second                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S30=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating hang-up         |
          |              | process.                                    |
          |--------------+---------------------------------------------|
          | Note:        | S30=0 will disable the timer                |
          +------------------------------------------------------------+
       
                         Proprietary V.25bis Command Set
       
          +------------------------------------------------------------+
          |                   CLEAR MEMORY LOCATION                    |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CLAn                                        |
          |--------------+---------------------------------------------|
          | Description: | Clears the phone number in memory location  |
          |              | n.                                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  LOCAL SERIAL PORT SPEED                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | CSPn                                        |
          |--------------+---------------------------------------------|
          | Description: | Sets serial port speed                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    CSP300    | Sets 300bps speed                           |
          |--------------+---------------------------------------------|
          |   CSP1200    | Sets 1200bps speed                          |
          |--------------+---------------------------------------------|
          |   CSP2400    | Sets 2400bps speed                          |
          |--------------+---------------------------------------------|
          |   CSP4800    | Sets 4800bps speed                          |
          |--------------+---------------------------------------------|
          |   CSP9600    | Sets 9600bps speed                          |
          |--------------+---------------------------------------------|
          |   CSP19200   | Sets 19.2Kbps speed                         |
          |--------------+---------------------------------------------|
          |   CSP38400   | Sets 38.4Kbps speed                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   REQUEST LISTED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLN                                         |
          |--------------+---------------------------------------------|
          | Description: | Requests the modem to return the list of    |
          |              | stored numbers                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONNECT INCOMING CALLS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CIC                                         |
          |--------------+---------------------------------------------|
          | Description: | Instructs the modem to answer an incoming   |
          |              | call; if no call is currently incoming, a   |
          |              | result of INV will be returned.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISREGARD INCOMING CALL                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | DIC                                         |
          |--------------+---------------------------------------------|
          | Description: | Instructs the modem to ignore the incoming  |
          |              | call, if the modem is set to automatically  |
          |              | answer. If no call is currently incoming, a |
          |              | result of INV will be returned.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CALL REQUESTED NUMBER                    |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CRN<#>                                      |
          |--------------+---------------------------------------------|
          | Description: | Dials the number given; it will ignore      |
          |              | spaces and hyphens in the string; if the    |
          |              | string is more than twenty characters long, |
          |              | a result of INV will be returned.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CALL REQUEST WITH ADDRESS                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CRSn                                        |
          |--------------+---------------------------------------------|
          | Description: | Dials the number stored in memory n after   |
          |              | checking the forbidden and delayed lists    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       PROGRAM NUMBER                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | PRNn<#>                                     |
          |--------------+---------------------------------------------|
          | Description: | Stores a phone number in memory address n;  |
          |              | if the number is more than twenty           |
          |              | characters long, a result of INV will be    |
          |              | returned.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              REQUEST LIST OF DELAYED NUMBERS               |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLD                                         |
          |--------------+---------------------------------------------|
          | Description: | Requests the list of delayed numbers from   |
          |              | the modem; this is a list of numbers that   |
          |              | the modem attempted to call and failed, and |
          |              | is not allowed to call again until a set    |
          |              | amount of time has elapsed; this is usually |
          |              | to prevent repeated dialing of a number     |
          |              | (which could indicate an attempted security |
          |              | breach.) If this feature is not enabled,    |
          |              | the modem will return INV.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             REQUEST LIST OF FORBIDDEN NUMBERS              |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLF                                         |
          |--------------+---------------------------------------------|
          | Description: | Requests the list of forbidden numbers; the |
          |              | modem is unable to dial numbers on this     |
          |              | list until it has been reset(power off/on); |
          |              | if this feature is not enabled, the modem   |
          |              | will return INV.                            |
          +------------------------------------------------------------+
       
                         V.25BIS COMMAND SET RESULT CODES
       
          +------------------------------------------------------------+
          |                   CALL FAILURE INDICATOR                   |
          |------------------------------------------------------------|
          | Type:             | Response                               |
          |-------------------+----------------------------------------|
          | Format:           | CFIxx                                  |
          |-------------------+----------------------------------------|
          | Description:      | Indicates that the attempt to connect  |
          |                   | failed                                 |
          |------------------------------------------------------------|
          |  Response  |   Name    |            Description            |
          |------------+-----------+-----------------------------------|
          |   CFIET    |  Engaged  | A busy signal was detected        |
          |            |   Tone    |                                   |
          |------------+-----------+-----------------------------------|
          |   CFIAB    |   Abort   | The call was aborted because no   |
          |            |           | dialtone was detected             |
          |------------+-----------+-----------------------------------|
          |   CFINT    |  No Tone  | The remote party did not issue a  |
          |            |           | response tone                     |
          |------------+-----------+-----------------------------------|
          |   CFIFC    | Forbidden | The number given is on the        |
          |            |   Call    | forbidden list                    |
          |------------+-----------+-----------------------------------|
          |   CFINS    |    Not    | The phone number given wasn’t in  |
          |            |  Stored   | memory                            |
          |------------+-----------+-----------------------------------|
          |   CFIUA    |   User    | The user aborted the call using a |
          |            |   Abort   | character from the host computer  |
          |------------+-----------+-----------------------------------|
          |   CFIND    | Dial Tone | A dial tone was not detected      |
          |------------+-----------+-----------------------------------|
          |   CFIFF    | Forbidden | The forbidden list is full        |
          |            |   list    |                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       INCOMING CALL                        |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | INC                                         |
          |--------------+---------------------------------------------|
          | Description: | An incoming call has been detected          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           VALID                            |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | VAL                                         |
          |--------------+---------------------------------------------|
          | Description: | The command issued is valid and is being    |
          |              | executed                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          INVALID                           |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | INV                                         |
          |--------------+---------------------------------------------|
          | Description: | The modem was issued an improper command    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DELAYED CALL                        |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | DLCn                                        |
          |--------------+---------------------------------------------|
          | Description: | The telephone number given is on the        |
          |              | delayed call list; the call cannot be       |
          |              | completed until n minutes elapse.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CONNECTION                         |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | CONn                                        |
          |--------------+---------------------------------------------|
          | Description: | A connection has been successfully          |
          |              | established at the speed n                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   LIST OF STORED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | LSNn<#>                                     |
          |--------------+---------------------------------------------|
          | Description: | This code is given in response to a RLN     |
          |              | command; it indicates that the number is in |
          |              | V.25bis memory.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               LIST OF STORED DELAYED NUMBERS               |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | LSDn<#>                                     |
          |--------------+---------------------------------------------|
          | Description: | This code is given in response to a RLD     |
          |              | command; it indicates that the number       |
          |              | cannot be redialed for n minutes.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              LIST OF STORED FORBIDDEN NUMBERS              |
          |------------------------------------------------------------|
          | Type:        | Response                                    |
          |--------------+---------------------------------------------|
          | Format:      | LSFn<#>                                     |
          |--------------+---------------------------------------------|
          | Description: | This code is given in response to a RLF     |
          |              | command; it indicates that the number is on |
          |              | the forbidden list and cannot be dialed.    |
          +------------------------------------------------------------+