(TXT) View Source
       
       # DIGICOM SPA
       
          SNT08/T
       
          Card Type              ISDN, Modem                             
          Chip Set               Unidentified                            
          I/O Options            Power, ISDN interface via RJ-45         
                                 connector, RJ-11 analog port,           
                                                                         
                                 25-pin serial port                      
          ISDN Rate              64Kbps x 2                              
          Maximum Modem Rate     33.6Kbps                                
          Maximum Fax Rate       14.4Kbps                                
                                                                         
          ISDN Modulation        V.110, V.120                            
          Protocol               
          Data Modulation        Bell 103J/212A,                         
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis,V.23, V.32,   
                                 V.32bis, V.34, V.FC                     
          Fax Modulation         V.17, V.29, V.27ter                     
          Protocol               
          Error                  MNP10, MNP5, V.42, V.42bis              
          Correction/Compression 
          Fax Class              Class I                                 
          Data Bus               External                                
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       |   Label    |   Function   |  Label  |
          |------------------------------------------------------------|
          | Power                         |   CN1   | Line out   | CN4 |
          |                               |         | (RJ-11)    |     |
          |-------------------------------+---------+------------+-----|
          | 25-pin serial port            |   CN2   | Power      | SW1 |
          |                               |         | switch     |     |
          |-------------------------------+---------+------------+-----|
          | ISDN interface (RJ-45         |   CN3   |            |     |
          | connector)                    |         |            |     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                 Setting                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | í Transmission channel in high          |  U1   |   Open   |
          | impedence mode                          |       |          |
          |-----------------------------------------+-------+----------|
          | Transmit termination set to 100Ohm      |  U1   |  Closed  |
          |-----------------------------------------+-------+----------|
          | í Receive channel in high impedence     |  U2   |   Open   |
          | mode                                    |       |          |
          |-----------------------------------------+-------+----------|
          | Receive termination set to 100Ohm       |  U2   |  Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PORT INTERFACE SELECTION                  |
          |------------------------------------------------------------|
          |  Setting   | U13  | U14  | U15  | U16  | U17  | U18  | U19 |
          |------------+------+------+------+------+------+------+-----|
          |     í      | 1 &  | 1 &  | 1 &  | 1 &  | 1 &  | 1 &  | 1 & |
          | V.24/V.28  |  2   |  2   |  2   |  2   |  2   |  2   |  2  |
          | interface  |      |      |      |      |      |      |     |
          |------------+------+------+------+------+------+------+-----|
          |    V.35    | 2 &  | 2 &  | 2 &  | 2 &  | 2 &  | 2 &  | 2 & |
          | interface  |  3   |  3   |  3   |  3   |  3   |  3   |  3  |
          |------------------------------------------------------------|
          | Note: Pins designated are in the closed position           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   POWER ON CONFIGURATION                   |
          |------------------------------------------------------------|
          |         Setting         | DS1/1  | DS1/2  | DS1/3  | DS1/4 |
          |-------------------------+--------+--------+--------+-------|
          |     í Unidentified      |  Off   |  Off   |  Off   |  Off  |
          |-------------------------+--------+--------+--------+-------|
          | Factory configuration 0 |  Off   |  Off   |   On   |  Off  |
          |-------------------------+--------+--------+--------+-------|
          | Factory configuration 1 |   On   |  Off   |   On   |  Off  |
          |-------------------------+--------+--------+--------+-------|
          | Factory configuration 2 |  Off   |   On   |   On   |  Off  |
          |-------------------------+--------+--------+--------+-------|
          | Factory configuration 3 |   On   |   On   |   On   |  Off  |
          |-------------------------+--------+--------+--------+-------|
          |   Asynchronous V25bis   |  Off   |  Off   |  Off   |  On   |
          |-------------------------+--------+--------+--------+-------|
          |   Synchronous V25bis    |  Off   |  Off   |   On   |  On   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED | Color |  Status  |             Condition             |
          |-----+-------+----------+-----------------------------------|
          | PWR | Green |    On    |            Power is on            |
          |-----+-------+----------+-----------------------------------|
          | PWR | Green |   Off    |           Power is off            |
          |-----+-------+----------+-----------------------------------|
          | TST |  Red  |    On    |     Unit is conducting a test     |
          |-----+-------+----------+-----------------------------------|
          | TST |  Red  | Blinking |  Error detected during self test  |
          |-----+-------+----------+-----------------------------------|
          | TST |  Red  |   Off    |    Unit not conducting a test     |
          |-----+-------+----------+-----------------------------------|
          | MDC |  Red  |    On    |    DTE interface connected to     |
          |     |       |          |             modem/fax             |
          |-----+-------+----------+-----------------------------------|
          | MDC |  Red  |   Off    | DTE interface connected to the TA |
          |-----+-------+----------+-----------------------------------|
          | B1  |  Red  |    On    |         B1 channel in use         |
          |-----+-------+----------+-----------------------------------|
          | B1  |  Red  |   Off    |        B1 channel inactive        |
          |-----+-------+----------+-----------------------------------|
          | B1  |  Red  | Blinking |          B1 channel busy          |
          |-----+-------+----------+-----------------------------------|
          | B2  |  Red  |    On    |         B2 channel in use         |
          |-----+-------+----------+-----------------------------------|
          | B2  |  Red  |   Off    |        B2 channel inactive        |
          |-----+-------+----------+-----------------------------------|
          | B2  |  Red  | Blinking |          B2 channel busy          |
          |-----+-------+----------+-----------------------------------|
          | DSR |  Red  |    On    |     Terminal Adapter is ready     |
          |-----+-------+----------+-----------------------------------|
          | DSR |  Red  |   Off    |    Terminal Adapter not ready     |
          |-----+-------+----------+-----------------------------------|
          | DTR |  Red  |    On    |         Computer is ready         |
          |-----+-------+----------+-----------------------------------|
          | DTR |  Red  |   Off    |       Computer is not ready       |
          |-----+-------+----------+-----------------------------------|
          | TD  |  Red  |    On    |    Modem is transmitting data     |
          |-----+-------+----------+-----------------------------------|
          | TD  |  Red  |   Off    |  Modem is not transmitting data   |
          |-----+-------+----------+-----------------------------------|
          | CTS |  Red  |    On    |  CTS signal is high. TA ready to  |
          |     |       |          |             send data             |
          |-----+-------+----------+-----------------------------------|
          | CTS |  Red  |   Off    |         CTS signal is low         |
          |-----+-------+----------+-----------------------------------|
          | RD  |  Red  |    On    |      Modem is receiving data      |
          |-----+-------+----------+-----------------------------------|
          | RD  |  Red  |   Off    |    Modem is not receiving data    |
          |-----+-------+----------+-----------------------------------|
          | DCD |  Red  |    On    |       Data carrier present        |
          |-----+-------+----------+-----------------------------------|
          | DCD |  Red  |   Off    |     Data carrier not present.     |
          |     |       |          |    Connection not established     |
          +------------------------------------------------------------+
       
          +---------------------------------------------------------+
          |             SUPPORTED COMMAND SET (DIGITAL)             |
          |---------------------------------------------------------|
          |                    Basic AT Commands                    |
          |---------------------------------------------------------|
          | AT, A/                                                  |
          |---------------------------------------------------------|
          | E, Q, V, W                                              |
          |---------------------------------------------------------|
          | &C, &R, &Z                                              |
          |---------------------------------------------------------|
          |                       S Registers                       |
          |---------------------------------------------------------|
          | S3, S4, S12, S25, S26                                   |
          |---------------------------------------------------------|
          |                                                         |
          |---------------------------------------------------------|
          | Note: See MHI Help File for full command documentation. |
          +---------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               SUPPORTED COMMAND SET (ANALOG)               |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, A/                                                     |
          |------------------------------------------------------------|
          | A, E, H, L, M, O, Q, V, W, X, Y, Z                         |
          |------------------------------------------------------------|
          | &C, &M, &Q, &R, &T, &V, &W, &X, &Y, &Z                     |
          |------------------------------------------------------------|
          |                    Extended AT commands                    |
          |------------------------------------------------------------|
          | \A, \B, \G, \K, \N                                         |
          |------------------------------------------------------------|
          | %C, %E, %L                                                 |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6 ,S7, S8, S9, S10, S12, S18,     |
          | S25, S26, S30, S32, S33, S95                               |
          |------------------------------------------------------------|
          |                      Special commands                      |
          |------------------------------------------------------------|
          | +MS, )M                                                    |
          |------------------------------------------------------------|
          |                      V.25bis commands                      |
          |------------------------------------------------------------|
          | CIC, CRN, CRS, DIC, PRN                                    |
          |------------------------------------------------------------|
          |                                                            |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             DIGITAL OR ANALOG MODEM SELECTION              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects digital or analog for preliminary   |
          |              | setup                                       |
          |--------------+---------------------------------------------|
          | Note:        | If the call is being made using the digital |
          |              | section, the remote user is ISDN. If the    |
          |              | call is being made using the analog         |
          |              | section, the remote user is PSTN            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     $M0      | Computer serial interface is connected to   |
          |              | the digital modem section                   |
          |--------------+---------------------------------------------|
          |     $M1      | Computer serial interface is connected to   |
          |              | the analog modem section                    |
          +------------------------------------------------------------+
       
                       PROPRIETARY AT COMMAND SET (DIGITAL)
       
          +------------------------------------------------------------+
          |                    AUTO-MODE DETECTION                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Nn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects various options for the automatic   |
          |              | detection and negotiation of protocols      |
          |              | during the handshake process if the modem   |
          |              | is communicating with a remote modem of     |
          |              | dissimilar speed.                           |
          |--------------+---------------------------------------------|
          |   Command    |   Asynchronous Mode   |  Synchronous Mode   |
          |--------------+-----------------------+---------------------|
          |      N0      | If the DTE interface  | If the DTE          |
          |              | is equal or more than | interface is equal  |
          |              | 38.4Kbps and S37=255, | or more than        |
          |              | the connection is     | 115.2Kbps and       |
          |              | active at 38.4Kbps.   | S37=255, the        |
          |              | Otherwise, connection | connection is       |
          |              | is established at     | active at 64Kbps in |
          |              | speed selected by     | transparent mode.   |
          |              | S37.                  | Otherwise,          |
          |              |                       | connection is       |
          |              |                       | established at      |
          |              |                       | speed selected by   |
          |              |                       | S37.                |
          |--------------+-----------------------+---------------------|
          |     í N1     | Line connection speed | Line connection     |
          |              | starts at 19.2Kbps    | speed starts at     |
          |              | and follows DTE       | 48Kbps V.110 and    |
          |              | interface.            | follows DTE         |
          |              |                       | interface.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode options         |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &M0      | Buffered asynchronous mode                  |
          |--------------+---------------------------------------------|
          |     &M1      | Asynchronous off-line command mode and      |
          |              | synchronous connect mode.                   |
          |--------------+---------------------------------------------|
          |     &M2      | Asynchronous off-line command mode. Modem   |
          |              | autodials first number in directory, then   |
          |              | synchronous connect mode.                   |
          |--------------+---------------------------------------------|
          |     &M4      | Direct mode (V.110)                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode options         |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &Q0      | Buffered asynchronous mode                  |
          |--------------+---------------------------------------------|
          |     &Q1      | Asynchronous off-line command mode and      |
          |              | synchronous connect mode                    |
          |--------------+---------------------------------------------|
          |     &Q2      | Asynchronous off-line command mode, Modem   |
          |              | autodials first number in directory, then   |
          |              | synchronous connect mode.                   |
          |--------------+---------------------------------------------|
          |     &Q4      | Direct mode (V.110)                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V0      | Displays the active profile, the 0 and 1st  |
          |              | user configuration and the first four       |
          |              | stored numbers                              |
          |--------------+---------------------------------------------|
          |     &V1      | Displays the 2nd and 3rd user configuration |
          |--------------+---------------------------------------------|
          |     &V2      | Displays every stored phone number          |
          |--------------+---------------------------------------------|
          |     &V3      | Displays the supplementary services profile |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA COMPRESSION                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Un                               |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &U0     | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     &U1      | Error corrected data compression enabled    |
          |              | (V.120)                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &S0     | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í&D0     | DTR override                                |
          |--------------+---------------------------------------------|
          |     &D1      | DTR toggle causes online command mode       |
          |--------------+---------------------------------------------|
          |     &D2      | Normal DTR operations                       |
          |--------------+---------------------------------------------|
          |     &D3      | Resets on receipt of DTR                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n (0-19)       |
          |--------------+---------------------------------------------|
          |      DT      | Call is switched to digital interface       |
          |--------------+---------------------------------------------|
          |      DP      | Call is switched to analog interface        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FACTORY DEFAULT PROFILE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets values in active profile to values     |
          |              | found in the default profile                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &F0      | Load active profile the factory profile 0   |
          |--------------+---------------------------------------------|
          |     &F1      | Load active profile the factory profile 1   |
          |--------------+---------------------------------------------|
          |     &F2      | Load active profile the factory profile 2   |
          |--------------+---------------------------------------------|
          |     &F3      | Load active profile the factory profile 3   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &K3      | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &K4      | XON/XOFF flow control enabled. Modem does   |
          |              | not transmit XON/XOFF characters received   |
          |              | from computer to remote                     |
          |--------------+---------------------------------------------|
          |     &K8      | Unidirectional XON/XOFF flow control        |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     &K12     | XON/XOFF flow control enabled. Modem        |
          |              | transmits XON/XOFF characters received from |
          |              | computer to remote                          |
          |--------------+---------------------------------------------|
          |     &K16     | V.110 XON/XOFF flow control enabled. Flow   |
          |              | control between local and remote modems     |
          |              | only. Flow control between modem and        |
          |              | computer is disabled.                       |
          |--------------+---------------------------------------------|
          |     &K20     | V.110 XON/XOFF flow control enabled.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        HOOK CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Hn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the device is on-hook or    |
          |              | off-hook                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      H0      | TA commanded to go on-hook (hang-up)        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          ON-LINE                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] On [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls on-line command (data              |
          |              | transmission) state options.                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      O0      | On-line command mode with no retraining     |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports model                               |
          |--------------+---------------------------------------------|
          |      I1      | Reports ROM checksum                        |
          |--------------+---------------------------------------------|
          |      I2      | Tests and reports ROM checksum              |
          |--------------+---------------------------------------------|
          |      I3      | Reports revision level                      |
          |--------------+---------------------------------------------|
          |      I4      | Display central office                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                RESTORE PROFILE ON POWER-UP                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Yn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Restores a selected profile into the active |
          |              | profile on power-up (hard reset)            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &Y0      | Restore profile 0 on power-up               |
          |--------------+---------------------------------------------|
          |     &Y1      | Restore profile 1 on power-up               |
          |--------------+---------------------------------------------|
          |     &Y2      | Restore profile 2 on power-up               |
          |--------------+---------------------------------------------|
          |     &Y3      | Restore profile 3 on power-up               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             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                   |
          |--------------+---------------------------------------------|
          |      X0      | Result codes 0 - 4 enabled.                 |
          |--------------+---------------------------------------------|
          |      X1      | Extended result codes enabled.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         SOFT RESET                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Zn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Restores modem profiles previously saved in |
          |              | non-volatile RAM using the &W command.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Z0      | Restore setting 0                           |
          |--------------+---------------------------------------------|
          |      Z1      | Restore setting 1                           |
          |--------------+---------------------------------------------|
          |      Z2      | Restore setting 2                           |
          |--------------+---------------------------------------------|
          |      Z3      | Restore setting 3                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    STORE ACTIVE PROFILE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Wn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Writes the values for the active profile    |
          |              | into the non-volatile RAM                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &W0      | Write the active profile to stored profile  |
          |              | 0                                           |
          |--------------+---------------------------------------------|
          |     &W1      | Write the active profile to stored profile  |
          |              | 1                                           |
          |--------------+---------------------------------------------|
          |     &W2      | Write the active profile to stored profile  |
          |              | 2                                           |
          |--------------+---------------------------------------------|
          |     &W3      | Write the active profile to stored profile  |
          |              | 3                                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T0      | End current test                            |
          |--------------+---------------------------------------------|
          |     &T1      | Begin local analog loopback test            |
          |--------------+---------------------------------------------|
          |     &T3      | Begin B1 channel local digital loopback     |
          +------------------------------------------------------------+
       
                        EXTENDED AT COMMAND SET (DIGITAL)
       
          +------------------------------------------------------------+
          |                     B-CHANNEL PROTOCOL                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A2=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Determines rate adaptation protocol on      |
          |              | B-channel                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í %A2=1    | V.110                                       |
          |--------------+---------------------------------------------|
          |    %A2=2     | V.120                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    B-CHANNEL SELECTION                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A3=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects data channel                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í %A3=2    | B1 channel selected. If busy select B2      |
          |              | channel                                     |
          |--------------+---------------------------------------------|
          |    %A3=3     | B1 channel selected. If busy initiate       |
          |              | hang-up                                     |
          |--------------+---------------------------------------------|
          |    %A3=4     | B2 channel selected. If busy select B1      |
          |              | channel                                     |
          |--------------+---------------------------------------------|
          |    %A3=5     | B2 channel selected. If busy initiate       |
          |              | hang-up                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMMAND SET                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Defines the AT or V.25bis command set       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %V0      | AT command set                              |
          |--------------+---------------------------------------------|
          |     %V1      | Asynchronous V.25bis command set            |
          |--------------+---------------------------------------------|
          |     %V3      | Synchronous V.25bis HDLC command set        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 enabled                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FLASH EPROM CODE UPGRADE                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Initiates Flash EPROM code upgrade          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           RESET                            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Z1 [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Master reset and load the configuration     |
          |              | specified by the &Y command                 |
          +------------------------------------------------------------+
       
                            SPECIAL COMMANDS (DIGITAL)
       
          +------------------------------------------------------------+
          |                   AUDIO/SPEECH ISDN CALL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects type of ISDN analog call            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í *B0     | Speech mode enabled                         |
          |--------------+---------------------------------------------|
          |     *B1      | 3.1KHz audio enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALLER ID                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *In [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables originate call             |
          |              | identification function                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *I0      | Caller ID disabled                          |
          |--------------+---------------------------------------------|
          |     *I1      | Caller ID enabled                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MULTISUBSCRIBER NUMBER                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Permits the association of a maximum of 8   |
          |              | consecutive numbers to a BRI access of the  |
          |              | national plan number                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í *M0     | MSN disabled                                |
          |--------------+---------------------------------------------|
          |     *M1      | MSN enabled                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     PROGRAMMING PROMPT                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables programming prompt         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í $P0     | Interface prompt disabled                   |
          |--------------+---------------------------------------------|
          |     $P1      | Interface prompt enabled                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         SUBADDRESS                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Identifies address of called modem          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í *S0     | Subaddress function disabled                |
          |--------------+---------------------------------------------|
          |     *S1      | Subaddress function enabled                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   STORE CALLER ID NUMBER                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !N1=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Stores telephone number n for the caller ID |
          |              | function. !N1=? displays the stored         |
          |              | telephone number.                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                STORE MULTISUBSCRIBER NUMBER                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !N2=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Stores own telephone number n for the MSN.  |
          |              | !N2=? displays the stored multisubscriber   |
          |              | number.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  STORE SUBADDRESS NUMBER                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !N3=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Stores subaddress field with a maximum of   |
          |              | four numbers. !N3=? displays the stored     |
          |              | subaddress field.                           |
          +------------------------------------------------------------+
       
                          S(status) REGISTERS (DIGITAL)
       
          +------------------------------------------------------------+
          |                   AUTO ANSWER RING COUNT                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S0=n [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 1-5                                         |
          |--------------+---------------------------------------------|
          | Unit:        | 1 ring                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the number of rings allowed before the |
          |              | modem automatically goes off-hook           |
          |------------------------------------------------------------|
          |      Note: If S0=0, automatic-answering is disabled. The A |
          |      command must be used to go off-hook.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    BACKSPACE CHARACTER                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S5=n [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Selects a character used for backspace <BS> |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S31                   |
          |------------------------------------------------------------|
          | Type:                      | Register                      |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S31=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Selects V.25bis command mode              |
          |------------------------------------------------------------|
          |   Bit    | Value  |                Function                |
          |----------+--------+----------------------------------------|
          |   1,0    |    í 0 | V.25bis asynchronous mode              |
          |----------+--------+----------------------------------------|
          |   3, 2   |    í 0 | V.25bis disabled                       |
          |          |        |                                        |
          |          |      1 | V.25bis enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CALL WAITING TIME                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S13=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the duration that the buzzer/Test   |
          |              | led flashes when a new call is detected. A  |
          |              | value of 0 disables call waiting time.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DCE LINE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |  S37=0, 255  | Speed of last connection                    |
          |--------------+---------------------------------------------|
          |    S37=4     | 600bps                                      |
          |--------------+---------------------------------------------|
          |    S37=5     | 1200bps                                     |
          |--------------+---------------------------------------------|
          |    S37=6     | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    S37=15    | 4800bps                                     |
          |--------------+---------------------------------------------|
          |    S37=16    | 7200bps                                     |
          |--------------+---------------------------------------------|
          |    S37=17    | 9600bps                                     |
          |--------------+---------------------------------------------|
          |    S37=18    | 12.0Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=19    | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=27    | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=50    | 38.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=51    | 48.0Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=53    | 64.OKbps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      ESCAPE CHARACTER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S2=n [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Selects a character used for the escape     |
          |              | sequence                                    |
          |------------------------------------------------------------|
          |      Note: A value greater than 127 will disable the       |
          |      escape sequence.                                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:          | Register                                  |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S49=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the value of the &K command, which |
          |              | specifies the DTE flow control setting      |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |     S49=0      | No DTE flow control                       |
          |----------------+-------------------------------------------|
          |     S49=3      | RTS/CTS flow control enabled              |
          |----------------+-------------------------------------------|
          |     S49=4      | Bi-directional XON/XOFF flow control      |
          |                | enabled                                   |
          |----------------+-------------------------------------------|
          |     S49=5      | Transparent bi-directional XON/XOFF flow  |
          |                | control enabled                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    NO CARRIER TIME-OUT                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S7=n [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 1-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Maximum wait time the modem uses after      |
          |              | dialing to detect a carrier signal from the |
          |              | remote modem for both originating and       |
          |              | answering calls.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            POINTER FOR CALL-BACK AND AUTOLOGON             |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S34=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-20, 255                                   |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Establishes the memory location accessed to |
          |              | initiate autologon or callback procedures.  |
          |              | 20 will cause the phonebook to scroll. 255  |
          |              | disables function                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         RING COUNT                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S1= n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 1-5                                         |
          |--------------+---------------------------------------------|
          | Unit:        | 1 ring                                      |
          |--------------+---------------------------------------------|
          | Description: | Counts the number of ring-cycles the modem  |
          |              | receives                                    |
          |------------------------------------------------------------|
          |      Note: S1 is reset to 0 if no ring is detected within  |
          |      an eight-second window.                               |
          +------------------------------------------------------------+
       
                       PROPRIETARY AT COMMAND SET (ANALOG)
       
          +------------------------------------------------------------+
          |                  COMMUNICATION PROTOCOLS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for data |
          |              | calls                                       |
          |------------------------------------------------------------|
          |      Note: The B command allows the simultaneous selection |
          |      of more than one suffix, enabling multiple protocols. |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      B0      | ITU-T V.22 at 300 or 1200bps                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &S0     | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &D0      | DTR override                                |
          |--------------+---------------------------------------------|
          |     &D1      | DTR toggle causes online command mode       |
          |--------------+---------------------------------------------|
          |    í &D2     | Normal DTR operations                       |
          |--------------+---------------------------------------------|
          |     &D3      | Resets on receipt of DTR                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number                         |
          |--------------+---------------------------------------------|
          |      DP      | Dial using analog modem section             |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n (0-3)        |
          |--------------+---------------------------------------------|
          |      DT      | Dial using digital modem section            |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      D@      | Wait for Quite Answer function enabled.     |
          |              | Modem waits until a "quiet answer," a       |
          |              | ring-back signal followed by five seconds   |
          |              | of silence.                                 |
          |--------------+---------------------------------------------|
          |      D!      | Flash function initiated. Modem commanded   |
          |              | to go off-hook for specified time before    |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FACTORY DEFAULT PROFILE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets values in active profile to values     |
          |              | found in the default profile                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &F0      | Factory default profile 0                   |
          |--------------+---------------------------------------------|
          |     &F1      | Factory default profile 1                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |    í &K3     | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &K4      | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |     &K5      | Transparent XON/XOFF flow control enabled   |
          |--------------+---------------------------------------------|
          |     &K6      | RTS/CTS and XON/XOFF flow control enabled   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         GUARD TONE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Commands the modem to transmit a guard tone |
          |              | in V.22/V.22bis                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &G0      | Guard tone disabled                         |
          |--------------+---------------------------------------------|
          |     &G2      | Guard tone enabled                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      LINE MODULATION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Fn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Command supported only for compatibility.   |
          |              | No function is performed                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports maximum line speed                  |
          |--------------+---------------------------------------------|
          |      I1      | Reports product type                        |
          |--------------+---------------------------------------------|
          |      I2      | Reports checksum firmware                   |
          |--------------+---------------------------------------------|
          |      I3      | Reports product name                        |
          |--------------+---------------------------------------------|
          |      I4      | Reports firmware release                    |
          |--------------+---------------------------------------------|
          |      I5      | Reports active Country Code                 |
          +------------------------------------------------------------+
       
                          EXTENDED AT COMMANDS (ANALOG)
       
          +------------------------------------------------------------+
          |                     ABORT KEY CONTROL                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable abort key during dialing     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %K0      | Abort key during dialing enabled            |
          |--------------+---------------------------------------------|
          |     %K1      | abort key during dialing disabled           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          DSR WINK                          |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %S [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Returns a value which indicates line signal |
          |              | quality                                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %S0      | Data set ready in accordance with &S        |
          |--------------+---------------------------------------------|
          |     %S1      | When DTR is forced high, and the modem is   |
          |              | goes off-hook, DTR is off for 1sec.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    LINE SIGNAL QUALITY                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Q [cmds]                         |
          |--------------+---------------------------------------------|
          | Range:       | 000-127                                     |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Returns a value which indicates line signal |
          |              | quality. Values 000-007 indicate good line  |
          |              | quality. Values 008-127 indicate poor line  |
          |              | quality, disturbed signal                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         MAKE BUSY                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Make busy (off-hook) if DTR lost            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %B0     | Make busy disabled                          |
          |--------------+---------------------------------------------|
          |     %B1      | Make busy enabled if S25=0. When DTR is     |
          |              | low, the modem goes off-hook                |
          +------------------------------------------------------------+
       
                            SPECIAL COMMANDS (ANALOG)
       
          +------------------------------------------------------------+
          |                  MNP10 - LINK NEGOTIATION                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the speed at which MNP10 link          |
          |              | negotiation will occur                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *H0      | Link will be negotiated at highest possible |
          |              | speed                                       |
          |--------------+---------------------------------------------|
          |     *H1      | Link will be negotiated at 1200bps          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  MNP - EXTENDED SERVICES                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects MNP extended services               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -K0      | MNP extended services disabled              |
          |--------------+---------------------------------------------|
          |     -K1      | MNP extended services enabled if modem was  |
          |              | previously in V.42bis mode                  |
          +------------------------------------------------------------+
       
                            V.25bis COMMANDS (ANALOG)
       
          +------------------------------------------------------------+
          |                    LOCAL CONFIGURATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CNLn                                        |
          |--------------+---------------------------------------------|
          | Description: | Any AT command may be entered as a          |
          |              | parameter of this command                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               REQUEST LIST OF STORED NUMBERS               |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLN                                         |
          |--------------+---------------------------------------------|
          | Description: | Requests the list of phone numbers stored   |
          |              | in memory                                   |
          +------------------------------------------------------------+
       
                           S(status) REGISTERS (ANALOG)
       
          +------------------------------------------------------------+
          |                  TRANSMISSION LEVEL - FAX                  |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S92=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 3-15                                        |
          |--------------+---------------------------------------------|
          | Unit:        | -1 dBm                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the signal level for transmission      |
          |              | while in fax mode                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              TRANSMISSION LEVEL - LEASED-LINE              |
          |------------------------------------------------------------|
          | Type        | Register or Configuration                    |
          |-------------+----------------------------------------------|
          | Format      | AT [cmds] S91=n [cmds]                       |
          |-------------+----------------------------------------------|
          | Range       | 3-15                                         |
          |-------------+----------------------------------------------|
          | Unit        | -1 dBm                                       |
          |-------------+----------------------------------------------|
          | Description | Sets the signal level for transmission over  |
          |             | leased-lines                                 |
          +------------------------------------------------------------+