(TXT) View Source
       
       # PURE DATA, LTD.
       
          PDMCIA-V.32BIS
       
          Modem Type             Data (synchronous/asynchronous)/Fax     
          Maximum Data Rate      14.4Kbps                                
          Maximum Fax Rate       9600bps                                 
          Data Bus               PCMCIA                                  
          Fax Class              Class I                                 
          Data Modulation        Bell 103A/212A                          
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.32,        
                                 V.32bis                                 
          Fax Modulation         ITU-T V.21CH.2, V.27ter, V.29           
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
       
                                                                   V1550
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |              AUTO-RELIABLE FALLBACK CHARACTER              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %An [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT%A20<CR>                                  |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used as the              |
          |              | auto-reliable fallback character. %A0 will  |
          |              | disable this function.                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          AUTO-RELIABLE TIME BUFFER CONFIGURATION           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &On [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT &O1 &Q4<CR>                              |
          |--------------+---------------------------------------------|
          | Description: | Controls the handling of incoming data      |
          |              | during auto-reliable time period.           |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |     &O0      | Data is discarded.                          |
          |--------------+---------------------------------------------|
          |     &O1      | Data is buffered.                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          AUTO-RELIABLE TIME BUFFER CONFIGURATION           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \C1 \B<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Controls the handling of incoming data      |
          |              | during auto-reliable time period.           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \C0      | Data is discarded.                          |
          |--------------+---------------------------------------------|
          |     \C1      | Data is buffered.                           |
          |--------------+---------------------------------------------|
          |     \C2      | Data is discarded, modem returns to normal  |
          |              | mode on receiving auto-reliable fallback    |
          |              | character.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        AUTO-RETRAIN                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT &E0 H1<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Selects auto-retrain mode.                  |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |     &E0      | Auto-retrain disabled.                      |
          |--------------+---------------------------------------------|
          |     &E1      | Auto-retrain enabled.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        AUTO-RETRAIN                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmd] %En [cmd]                          |
          |--------------+---------------------------------------------|
          | Example:     | AT %E1 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Selects auto-retrain mode.                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %E0      | Auto-retrain disabled.                      |
          |--------------+---------------------------------------------|
          |     %E1      | Auto-retrain enabled.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format          | AT [cmds] S14? [cmds]                    |
          |-----------------+------------------------------------------|
          | Example:        | ATS14?<CR>                               |
          |-----------------+------------------------------------------|
          | Default:        | Read only                                |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Reports echo, result codes, result code  |
          |                 | display, dumb mode, dial mode, and       |
          |                 | answer/originate mode.                   |
          |------------------------------------------------------------|
          |   Bit    | Value     |               Meaning               |
          |----------+-----------+-------------------------------------|
          |    0     |     0     | Not used.                           |
          |----------+-----------+-------------------------------------|
          |    1     |     0     | Command echo disabled.              |
          |          |           |                                     |
          |          |     1     | Command echo enabled.               |
          |----------+-----------+-------------------------------------|
          |    2     |     0     | Result codes enabled.               |
          |          |           |                                     |
          |          |     1     | Result codes disabled.              |
          |----------+-----------+-------------------------------------|
          |    3     |     0     | Display result codes in numeric     |
          |          |           | format.                             |
          |          |     1     |                                     |
          |          |           | Display result codes in verbose     |
          |          |           | format.                             |
          |----------+-----------+-------------------------------------|
          |    4     |     0     | Dumb mode disabled.                 |
          |          |           |                                     |
          |          |     1     | Dumb mode enabled.                  |
          |----------+-----------+-------------------------------------|
          |    5     |     0     | Tone dial enabled.                  |
          |          |           |                                     |
          |          |     1     | Pulse dial enabled.                 |
          |----------+-----------+-------------------------------------|
          |    6     |     0     | Not used.                           |
          |----------+-----------+-------------------------------------|
          |    7     |     0     | Answer mode enabled.                |
          |          |           |                                     |
          |          |     1     | Originate mode enabled.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S21? [cmds]                     |
          |----------------+-------------------------------------------|
          | Example:       | ATS21?<CR>                                |
          |----------------+-------------------------------------------|
          | Default:       | Read only                                 |
          |----------------+-------------------------------------------|
          | Range:         | 0 - 255                                   |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Reports jack type, CTS signal, low DTR    |
          |                | action, DCD signal, DSR signal, and the   |
          |                | Long Space Disconnect function.           |
          |------------------------------------------------------------|
          |   Bit    | Value |                 Meaning                 |
          |----------+-------+-----------------------------------------|
          |    0     |   0   | Selects RJ-11, RJ-41S, or RJ45S jack.   |
          |          |       |                                         |
          |          |   1   | Selects RJ-12 or RJ-13 jack.            |
          |----------+-------+-----------------------------------------|
          |    1     |   0   | Not used.                               |
          |----------+-------+-----------------------------------------|
          |    2     |   0   | CTS follows RTS.                        |
          |          |       |                                         |
          |          |   1   | CTS forced high.                        |
          |----------+-------+-----------------------------------------|
          |   4, 3   |  00   | DTR signal ignored.                     |
          |          |       |                                         |
          |          |  01   | Modem goes to command mode on low DTR.  |
          |          |       |                                         |
          |          |  10   | Modem disconnects on low DTR.           |
          |          |       | Auto-Answer is disabled.                |
          |          |  11   |                                         |
          |          |       | Modem is initialized on low DTR.        |
          |----------+-------+-----------------------------------------|
          |    5     |   0   | DCD forced high.                        |
          |          |       |                                         |
          |          |   1   | DCD normal.                             |
          |----------+-------+-----------------------------------------|
          |    6     |   0   | DSR forced high.                        |
          |          |       |                                         |
          |          |   1   | DSR normal.                             |
          |----------+-------+-----------------------------------------|
          |    7     |   0   | Long Space Disconnect function          |
          |          |       | disabled.                               |
          |          |   1   |                                         |
          |          |       | Long Space Disconnect function enabled. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S22                   |
          |------------------------------------------------------------|
          | Format          | AT [cmds] S22? [cmds]                    |
          |-----------------+------------------------------------------|
          | Example:        | ATS22?<CR>                               |
          |-----------------+------------------------------------------|
          | Default:        | Read only                                |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Reports speaker volume and controls,     |
          |                 | limits results codes and make-break      |
          |                 | ratio.                                   |
          |------------------------------------------------------------|
          |    Bit     | Value |                Meaning                |
          |------------+-------+---------------------------------------|
          |    1, 0    |  00   | Off volume.                           |
          |            |       |                                       |
          |            |  01   | On volume.                            |
          |            |       |                                       |
          |            |  10   | Medium level volume.                  |
          |            |       |                                       |
          |            |  11   | High level volume.                    |
          |------------+-------+---------------------------------------|
          |    3, 2    |  00   | Speaker off.                          |
          |            |       |                                       |
          |            |  01   | Speaker off on carrier.               |
          |            |       |                                       |
          |            |  10   | Speaker always on.                    |
          |            |       |                                       |
          |            |  11   | Speaker on during handshake.          |
          |------------+-------+---------------------------------------|
          |  6, 5, 4   |  000  | Basic result codes only enabled.      |
          |            |       |                                       |
          |            |  001  | Basic and connection speed result     |
          |            |       | codes enabled.                        |
          |            |  010  |                                       |
          |            |       | Basic and connection speed result     |
          |            |  011  | codes and dialtone detection enabled. |
          |            |       |                                       |
          |            |  100  | All result codes except dialtone      |
          |            |       | detection enabled.                    |
          |            |       |                                       |
          |            |       | All result codes enabled.             |
          |------------+-------+---------------------------------------|
          |     7      |   0   | Pulse dial make-break 39%/61%.        |
          |            |       |                                       |
          |            |   1   | Pulse dial make-break 33%/67%.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S23? [cmds]                     |
          |----------------+-------------------------------------------|
          | Example:       | ATS23?<CR>                                |
          |----------------+-------------------------------------------|
          | Default:       | Read only                                 |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Reports remote digital loopback, DTE rate |
          |                | and parity, and guard tone.               |
          |------------------------------------------------------------|
          |    Bit    | Value |                Meaning                 |
          |-----------+-------+----------------------------------------|
          |     0     |   0   | Remote digital loopback denied.        |
          |           |       |                                        |
          |           |   1   | Remote digital loopback allowed.       |
          |-----------+-------+----------------------------------------|
          |  3, 2, 1  |  000  | Sets serial port speed to 0-300bps.    |
          |           |       |                                        |
          |           |  001  | Sets serial port speed to 1200bps.     |
          |           |       |                                        |
          |           |  010  | Sets serial port speed to 2400bps.     |
          |           |       |                                        |
          |           |  011  | Sets serial port speed to 4800bps.     |
          |           |       |                                        |
          |           |  100  | Sets serial port speed to 7200bps.     |
          |           |       |                                        |
          |           |  101  | Sets serial port speed to 9600bps.     |
          |           |       |                                        |
          |           |  110  | Sets serial port speed to 12000bps.    |
          |           |       |                                        |
          |           |  111  | Sets serial port speed to 14400bps.    |
          |-----------+-------+----------------------------------------|
          |   5, 4    |  00   | Parity even.                           |
          |           |       |                                        |
          |           |  01   | Not used.                              |
          |           |       |                                        |
          |           |  10   | Parity odd.                            |
          |           |       |                                        |
          |           |  11   | No Parity.                             |
          |-----------+-------+----------------------------------------|
          |   7, 6    |  00   | Guard tone disabled.                   |
          |           |       |                                        |
          |           |  01   | Guard tone 550Hz enabled.              |
          |           |       |                                        |
          |           |  10   | Guard tone 1800Hz enabled.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK SEND                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \B3 &W<CR>                               |
          |--------------+---------------------------------------------|
          | Default:     | 3                                           |
          |--------------+---------------------------------------------|
          | Range:       | 1-9                                         |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sends break to modem.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK TYPE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \K1 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Configures action of break signal.          |
          |------------------------------------------------------------|
          |    Command    |  Break from   |    Modem     |    Break    |
          |               |      DTE      | receives \B  |  received   |
          |               |               |              | from remote |
          |               |               |              |    modem    |
          |---------------+---------------+--------------+-------------|
          |      \K0      | Online        | Break sent   | Buffers     |
          |               | command mode  | to remote    | cleared,    |
          |               | enabled, send | modem and    | break sent  |
          |               | no break to   | buffered     | to DTE.     |
          |               | remote modem. | cleared.     |             |
          |---------------+---------------+--------------+-------------|
          |      \K1      | Break sent to | Break sent   | Buffers     |
          |               | remote modem  | to remote    | cleared,    |
          |               | and buffered  | modem and    | break sent  |
          |               | cleared.      | buffered     | to DTE.     |
          |               |               | cleared.     |             |
          |---------------+---------------+--------------+-------------|
          |      \K2      | Online        | Send break   | Break sent  |
          |               | command mode  | to remote    | immediately |
          |               | enabled, send | modem        | to DTE.     |
          |               | no break to   | immediately. |             |
          |               | remote modem. |              |             |
          |---------------+---------------+--------------+-------------|
          |      \K3      | Send break to | Send break   | Break sent  |
          |               | remote modem  | to remote    | immediately |
          |               | immediately.  | modem        | to DTE.     |
          |               |               | immediately. |             |
          |---------------+---------------+--------------+-------------|
          |      \K4      | Online        | Send break   | Break sent  |
          |               | command mode  | with         | with        |
          |               | enabled, send | transmitted  | received    |
          |               | no break to   | data.        | data to the |
          |               | remote modem. |              | DTE.        |
          |---------------+---------------+--------------+-------------|
          |      \K5      | Send break    | Send break   | Break sent  |
          |               | with          | with         | with        |
          |               | transmitted   | transmitted  | received    |
          |               | data.         | data.        | data to the |
          |               |               |              | DTE.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Un [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %E &U1 \K<CR>                            |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression.                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &U0      | Data compression disabled.                  |
          |--------------+---------------------------------------------|
          |     &U1      | Data compression enabled.                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \N1 DT555-1212<CR>                       |
          |--------------+---------------------------------------------|
          | Description: | Sets connect mode.                          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled.                        |
          |--------------+---------------------------------------------|
          |     \N1      | Normal mode enabled.                        |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled, MNP only.            |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode enabled, MNP with        |
          |              | fallback to Normal mode.                    |
          |--------------+---------------------------------------------|
          |     \N4      | Reliable mode enabled, LAPM only.           |
          |--------------+---------------------------------------------|
          |     \N5      | Auto-reliable mode enabled, LAPM with       |
          |              | fallback to Normal mode.                    |
          |--------------+---------------------------------------------|
          |     \N6      | Reliable mode enabled, LAPM with fallback   |
          |              | to MNP mode.                                |
          |--------------+---------------------------------------------|
          |     \N7      | Auto-reliable mode enabled, LAPM with       |
          |              | fallback to MNP then to Normal mode.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED LOWER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %M300 \JO<CR>                            |
          |--------------+---------------------------------------------|
          | Description: | Sets slowest allowed connection speed.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    %M300     | Select 300bps minimum speed.                |
          |--------------+---------------------------------------------|
          |    %M1200    | Select 1200bps minimum speed.               |
          |--------------+---------------------------------------------|
          |    %M2400    | Select 2400bps minimum speed.               |
          |--------------+---------------------------------------------|
          |    %M4800    | Select 4800bps minimum speed.               |
          |--------------+---------------------------------------------|
          |    %M7200    | Select 7200bps minimum speed.               |
          |--------------+---------------------------------------------|
          |    %M9600    | Select 9600bps minimum speed.               |
          |--------------+---------------------------------------------|
          |   %M12000    | Select 12Kbps minimum speed.                |
          |--------------+---------------------------------------------|
          |   %M14400    | Select 14.4Kbps minimum speed.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED UPPER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %M1200 %B9600 \J1<CR>                    |
          |--------------+---------------------------------------------|
          | Description: | Sets fastest allowed connection speed.      |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |    %B300     | Select 300bps maximum speed.                |
          |--------------+---------------------------------------------|
          |    %B1200    | Select 1200bps maximum speed.               |
          |--------------+---------------------------------------------|
          |    %B2400    | Select 2400bps maximum speed.               |
          |--------------+---------------------------------------------|
          |    %B4800    | Select 4800bps maximum speed.               |
          |--------------+---------------------------------------------|
          |    %B7200    | Select 7200bps maximum speed.               |
          |--------------+---------------------------------------------|
          |    %B9600    | Select 9600bps maximum speed.               |
          |--------------+---------------------------------------------|
          |   %B12000    | Select 12Kbps maximum speed.                |
          |--------------+---------------------------------------------|
          |   %B14400    | Select 14.4Kbps maximum speed with V.32bis  |
          |              | option.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmd] %Cn [cmd]                          |
          |--------------+---------------------------------------------|
          | Example:     | AT %C1<CR>                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression.                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression disabled.                  |
          |--------------+---------------------------------------------|
          |     %C1      | Data compression requested, V.42bis in      |
          |              | LAPM, MNP5 in MNP.                          |
          |--------------+---------------------------------------------|
          |     %C2      | Data compression requested, V.42bis in      |
          |              | LAPM, MNP5 in MNP.                          |
          |--------------+---------------------------------------------|
          |     %C3      | Data compression requested, V.42bis in      |
          |              | LAPM, MNP5 in MNP.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         ECHO DATA                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \En [cmds]                        |
          |--------------+---------------------------------------------|
          | \Example:    | AT \E0 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to echo received data.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \E0      | Data echo disabled.                         |
          |--------------+---------------------------------------------|
          |     \E1      | Data echo enabled.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \G1 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Selects modem port flow control.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \G0      | Flow control disabled.                      |
          |--------------+---------------------------------------------|
          |     \G1      | Flow control enabled.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   FLOW CONTROL - ENQ/ACK                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \H9 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Selects ENQ/ACK pacing.                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \H0      | Disables ENQ/ACK pacing.                    |
          |--------------+---------------------------------------------|
          |     \H1      | Enables ENQ/ACK pacing in terminal mode.    |
          |--------------+---------------------------------------------|
          |     \H2      | Enables ENQ/ACK pacing in host mode.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FLOW CONTROL TYPE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \Q0 A <CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Sets type of flow control used by modem.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \Q0      | Flow control disabled.                      |
          |--------------+---------------------------------------------|
          |     \Q1      | Bidirectional XON/XOFF flow control         |
          |              | enabled.                                    |
          |--------------+---------------------------------------------|
          |     \Q2      | Unidirectional CTS flow control to DTE      |
          |              | enabled.                                    |
          |--------------+---------------------------------------------|
          |     \Q3      | Bidirectional RTS/CTS flow control enabled. |
          |--------------+---------------------------------------------|
          |     \Q4      | Unidirectional XON/XOFF flow control        |
          |              | enabled.                                    |
          |--------------+---------------------------------------------|
          |     \Q5      | Unidirectional CTS flow control to DTE, CTS |
          |              | off until CONNECT enabled.                  |
          |--------------+---------------------------------------------|
          |     \Q6      | Bidirectional RTS/CTS flow control, CTS off |
          |              | until CONNECT enabled.                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT\T20<CR>                                  |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-90                                        |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      LOCK SERIAL PORT                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \J0<CR>                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets operation of serial port speed.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \J0      | Serial speed locked.                        |
          |--------------+---------------------------------------------|
          |     \J1      | Serial speed follows connect speed.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            MAXIMUM BLOCK SIZE FOR TRANSMISSION             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \An [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \A3 %B1200<CR>                           |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum transmittable block size.  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \A0      | Maximum MNP block size is 64 characters.    |
          |--------------+---------------------------------------------|
          |     \A1      | Maximum MNP block size is 128 characters.   |
          |--------------+---------------------------------------------|
          |     \A2      | Maximum MNP block size is 192 characters.   |
          |--------------+---------------------------------------------|
          |     \A3      | Maximum MNP block size is 256 characters.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MNP STREAM/BLOCK MODE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \L1 DT555-1212<CR>                       |
          |--------------+---------------------------------------------|
          | Description: | Selects the transfer mode for MNP.          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \L0      | Stream mode for MNP enabled.                |
          |--------------+---------------------------------------------|
          |     \L1      | Block mode for MNP enabled.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    NUMERIC RESULT CODES                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT &N0 &E<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of numeric result codes.   |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |     &N0      | Hayes numeric result codes enabled.         |
          |--------------+---------------------------------------------|
          |     &N1      | Microcom numeric result codes enabled.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  REPORT FIRMWARE VERSION                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %V [cmds]                         |
          |--------------+---------------------------------------------|
          | Example:     | AT %V <CR>                                  |
          |--------------+---------------------------------------------|
          | Description: | Displays firmware version.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      REPORT PROTOCOL                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S27? [cmds]                       |
          |--------------+---------------------------------------------|
          | Example:     | AT S27? <CR>                                |
          |--------------+---------------------------------------------|
          | Description: | Reports ITU-T/Bell modes.                   |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | CCITT mode.                                 |
          |--------------+---------------------------------------------|
          |      64      | Bell mode.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \V1 W0<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of result code format.     |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |     \V0      | /REL connect codes not displayed, unless W1 |
          |              | is set.                                     |
          |--------------+---------------------------------------------|
          |     \V1      | /REL connect codes are displayed, unless W1 |
          |              | is set.                                     |
          |--------------+---------------------------------------------|
          |     \V2      | -LAPM, -MNP, /REL connect codes are         |
          |              | displayed.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S16? [cmds]                      |
          |---------------+--------------------------------------------|
          | Example:      | ATS16?<CR>                                 |
          |---------------+--------------------------------------------|
          | Default:      | Read only                                  |
          |---------------+--------------------------------------------|
          | Range:        | 0-255                                      |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Description:  | Controls loopback tests, analog, digital,  |
          |               | remote digital, and self tests.            |
          |------------------------------------------------------------|
          |   Bit   | Value |                 Function                 |
          |---------+-------+------------------------------------------|
          |    0    |   0   | Local analog loopback not in progress.   |
          |         |       |                                          |
          |         |   1   | Local analog loopback in progress.       |
          |---------+-------+------------------------------------------|
          |    1    |   0   | Not used.                                |
          |---------+-------+------------------------------------------|
          |    2    |   0   | Local digital loopback not in progress.  |
          |         |       |                                          |
          |         |   1   | Local digital loopback in progress.      |
          |---------+-------+------------------------------------------|
          |    3    |   0   | Modem not in remote digital loopback.    |
          |         |       |                                          |
          |         |   1   | Remote digital loopback in progress.     |
          |---------+-------+------------------------------------------|
          |    4    |   0   | Remote digital loopback not requested.   |
          |         |       |                                          |
          |         |   1   | Remote digital loopback requested.       |
          |---------+-------+------------------------------------------|
          |    5    |   0   | Remote digital loopback w/ self-test not |
          |         |       | in progress.                             |
          |         |   1   |                                          |
          |         |       | Remote digital loopback w/ self-test in  |
          |         |       | progress.                                |
          |---------+-------+------------------------------------------|
          |    6    |   0   | Local analog loopback w/ self-test not   |
          |         |       | in progress.                             |
          |         |   1   |                                          |
          |         |       | Local analog loopback w/ self-test in    |
          |         |       | progress.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               V.42bis MAXIMUM STRING LENGTH                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S214=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Example:     | AT S214=250 <CR>                            |
          |--------------+---------------------------------------------|
          | Default:     | 250                                         |
          |--------------+---------------------------------------------|
          | Range:       | 6 - 250                                     |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Selects string size for V.42bis             |
          |              | compression.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   XON/XOFF PASS-THROUGH                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Xn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \X1 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Selects whether XON/XOFF signals are sent   |
          |              | to remote modem.                            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \X0      | XON/XOFF signals trapped by local modem.    |
          |--------------+---------------------------------------------|
          |     \X1      | XON/XOFF passed through local modem.        |