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       # ACTIONTEC ELECTRONICS, INC.
       
          PCMCIA 14400 FAX/MODEM
       
          Modem Type                 Data (synchronous/asynchronous)/Fax 
          Maximum Data Rate          14.4Kbps                            
          Maximum Fax Rate           14.4Kbps                            
          Data Bus                   External                            
          Fax Class                  Class I                             
          Data Modulation Protocol   Bell 103A/212A                      
                                                                         
                                     ITU-T V.22, V.22bis, V.32, V.32bis  
          Fax Modulation Protocol    ITU-T V.17, V.27ter, V.29           
          Error                      MNP5, V.42, V.42bis                 
          Correction/Compression     
       
                            Proprietary AT Command Set
       
                                                                   V1577
       
          +------------------------------------------------------------+
          |                 ACCEPT AUTO-RELIABLE MODE                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \U                                |
          |--------------+---------------------------------------------|
          | Example:     | AT \U<CR>                                   |
          |--------------+---------------------------------------------|
          | Description: | Accepts remote modem’s request for reliable |
          |              | link.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 AUTO FALL FORWARD/FALLBACK                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %G1 &W <CR>                              |
          |--------------+---------------------------------------------|
          | Description: | Selects auto fallback.                      |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          | %G1          | Fallback enabled.                           |
          |--------------+---------------------------------------------|
          | » %G0        | Fallback disabled.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              AUTO-RELIABLE FALLBACK CHARACTER              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %An [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %A20 <CR>                                |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit         | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used as the              |
          |              | auto-reliable fallback character.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        AUTO-RETRAIN                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT %En                                      |
          |--------------+---------------------------------------------|
          | 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=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Example:        | ATS14=138<CR>                            |
          |-----------------+------------------------------------------|
          | Default:        | 138                                      |
          |-----------------+------------------------------------------|
          | Range:          | 0-174                                    |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Controls echo, result codes, result code |
          |                 | display, dial mode, and answer/originate |
          |                 | mode.                                    |
          |------------------------------------------------------------|
          |   Bit    | Value      |              Function              |
          |----------+------------+------------------------------------|
          |    0     | 0          | Not used.                          |
          |----------+------------+------------------------------------|
          |    1     | 0 » 1      | Command echo disabled.             |
          |          |            |                                    |
          |          |            | Command echo enabled.              |
          |----------+------------+------------------------------------|
          |    2     | » 0 1      | Result codes enabled.              |
          |          |            |                                    |
          |          |            | Result codes disabled.             |
          |----------+------------+------------------------------------|
          |    3     | 0 » 1      | Display result codes in numeric    |
          |          |            | format.                            |
          |          |            |                                    |
          |          |            | Display result codes in verbose    |
          |          |            | format.                            |
          |----------+------------+------------------------------------|
          |    4     | 0          | Not used.                          |
          |----------+------------+------------------------------------|
          |    5     | » 0 1      | Tone dial enabled.                 |
          |          |            |                                    |
          |          |            | Pulse dial enabled.                |
          |----------+------------+------------------------------------|
          |    6     | 0          | Not used.                          |
          |----------+------------+------------------------------------|
          |    7     | 0 » 1      | Answer mode enabled.               |
          |          |            |                                    |
          |          |            | Originate mode enabled.            |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S21=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Example:       | ATS21=4<CR>                               |
          |----------------+-------------------------------------------|
          | Default:       | 4                                         |
          |----------------+-------------------------------------------|
          | Range:         | 0 - 253                                   |
          |----------------+-------------------------------------------|
          | Unit:          | Read only                                 |
          |----------------+-------------------------------------------|
          | Description:   | Displays jack type, CTS signal, low DTR   |
          |                | action, DCD signal, DSR signal, and the   |
          |                | Long Space Disconnect function.           |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     | » 0 1 | RJ-11 jack selected.                    |
          |          |       |                                         |
          |          |       | RJ-12 or RJ-13 jack selected.           |
          |----------+-------+-----------------------------------------|
          |    1     | 0     | Not used.                               |
          |----------+-------+-----------------------------------------|
          |    2     | 0 » 1 | CTS forced high.                        |
          |          |       |                                         |
          |          |       | CTS follows RTS.                        |
          |----------+-------+-----------------------------------------|
          |   4, 3   | » 00  | DTR signal ignored.                     |
          |          | 01 10 |                                         |
          |          | 11    | Modem goes to command mode on low DTR.  |
          |          |       |                                         |
          |          |       | Modem disconnects on low DTR.           |
          |          |       | Auto-Answer is disabled.                |
          |          |       |                                         |
          |          |       | Modem is initialized on low DTR.        |
          |----------+-------+-----------------------------------------|
          |    5     | » 0 1 | DCD forced high.                        |
          |          |       |                                         |
          |          |       | DCD normal.                             |
          |----------+-------+-----------------------------------------|
          |    6     | » 0 1 | DSR forced high.                        |
          |          |       |                                         |
          |          |       | DSR normal.                             |
          |----------+-------+-----------------------------------------|
          |    7     | » 0 1 | Long Space Disconnect function          |
          |          |       | disabled.                               |
          |          |       |                                         |
          |          |       | Long Space Disconnect function enabled. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S22                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S22=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Example:       | ATS22=117<CR>                             |
          |----------------+-------------------------------------------|
          | Default:       | 117                                       |
          |----------------+-------------------------------------------|
          | Range:         | 0-127                                     |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Controls speaker volume and controls, and |
          |                | limits results codes.                     |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |   1, 0    | 00 »  | Off volume.                            |
          |           | 01 10 |                                        |
          |           | 11    | On volume.                             |
          |           |       |                                        |
          |           |       | Medium level volume.                   |
          |           |       |                                        |
          |           |       | High level volume.                     |
          |-----------+-------+----------------------------------------|
          |   3, 2    | 00 »  | Speaker off.                           |
          |           | 01 10 |                                        |
          |           | 11    | Speaker off on carrier.                |
          |           |       |                                        |
          |           |       | Speaker always on.                     |
          |           |       |                                        |
          |           |       | Speaker on during handshake.           |
          |-----------+-------+----------------------------------------|
          |  6, 5, 4  | 000   | Basic result codes only enabled.       |
          |           | 100   |                                        |
          |           | 101   | Basic and connection speed result      |
          |           | 110 » | codes enabled.                         |
          |           | 111   |                                        |
          |           |       | Basic and connection speed result      |
          |           |       | codes and dialtone detection enabled.  |
          |           |       |                                        |
          |           |       | All result codes except dialtone       |
          |           |       | detection enabled.                     |
          |           |       |                                        |
          |           |       | All result codes enabled.              |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format           | AT [cmds] S23=n [cmds]                  |
          |------------------+-----------------------------------------|
          | Example:         | ATS23=177<CR>                           |
          |------------------+-----------------------------------------|
          | Default:         | 55                                      |
          |------------------+-----------------------------------------|
          | Range:           | 0-255                                   |
          |------------------+-----------------------------------------|
          | Unit:            | Bit-mapped                              |
          |------------------+-----------------------------------------|
          | Description:     | Grants/denies remote digital loopback,  |
          |                  | controls DTE rate and parity, and sets  |
          |                  | guard tone.                             |
          |------------------------------------------------------------|
          |    Bit     | Value  |               Function               |
          |------------+--------+--------------------------------------|
          |     0      | 0 » 1  | Remote digital loopback denied.      |
          |            |        |                                      |
          |            |        | Remote digital loopback allowed.     |
          |------------+--------+--------------------------------------|
          |  3, 2, 1   | 000    | Sets serial port speed to 0-300bps.  |
          |            | 001    |                                      |
          |            | 010 »  | Sets serial port speed to 600bps.    |
          |            | 011    |                                      |
          |            | 100    | Sets serial port speed to 1200bps.   |
          |            | 101    |                                      |
          |            | 110    | Sets serial port speed to 2400bps.   |
          |            |        |                                      |
          |            |        | Sets serial port speed to 4800bps.   |
          |            |        |                                      |
          |            |        | Sets serial port speed to 9600bps.   |
          |            |        |                                      |
          |            |        | Sets serial port speed to 19200bps.  |
          |------------+--------+--------------------------------------|
          |    5,4     | 00 01  | Parity even.                         |
          |            | 10 »   |                                      |
          |            | 11     | Not used.                            |
          |            |        |                                      |
          |            |        | Parity odd.                          |
          |            |        |                                      |
          |            |        | No Parity.                           |
          |------------+--------+--------------------------------------|
          |    7, 6    | » 00   | Guard tone disabled.                 |
          |            | 01 10  |                                      |
          |            |        | Guard tone disabled.                 |
          |            |        |                                      |
          |            |        | Guard tone 1800Hz enabled.           |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S27                   |
          |------------------------------------------------------------|
          | Format          | AT [cmds] S27=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Example:        | AT S27=9 <CR>                            |
          |-----------------+------------------------------------------|
          | Default:        | 73                                       |
          |-----------------+------------------------------------------|
          | Range:          | 0 - 127                                  |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Selects sync/async mode, Line type,      |
          |                 | internal clock, and ITU-T/Bell modes.    |
          |------------------------------------------------------------|
          |    Bit     | Value |               Function                |
          |------------+-------+---------------------------------------|
          |  3, 1, 0   | » 000 | Asynchronous mode, serial port speed  |
          |            | 001   | follows connect speed.                |
          |            | 010   |                                       |
          |            | 011   | Asynchronous command mode and         |
          |            | 100 » | synchronous connect mode.             |
          |            | 101   |                                       |
          |            | 110   | Asynchronous command mode and         |
          |            |       | synchronous connect mode, DTR dialing |
          |            |       | enabled.                              |
          |            |       |                                       |
          |            |       | Asynchronous command mode on low DTR, |
          |            |       | synchronous connect mode on high DTR. |
          |            |       |                                       |
          |            |       | Hayes AutoSync™ mode - serial port    |
          |            |       | locked at 9600bps.                    |
          |            |       |                                       |
          |            |       | Error correction mode.                |
          |            |       |                                       |
          |            |       | Buffered asynchronous mode.           |
          |------------+-------+---------------------------------------|
          |     2      | » 0 1 | Dial up line.                         |
          |            |       |                                       |
          |            |       | Leased line.                          |
          |------------+-------+---------------------------------------|
          |    5, 4    | » 00  | Internal DTE transmit clock source.   |
          |            | 01 10 |                                       |
          |            |       | External DTE transmit clock source.   |
          |            |       |                                       |
          |            |       | Slave DTE transmit clock source.      |
          |------------+-------+---------------------------------------|
          |     6      | 0 » 1 | CCITT mode.                           |
          |            |       |                                       |
          |            |       | Bell mode.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S28                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S28=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Example:       | AT S28=8 <CR>                             |
          |----------------+-------------------------------------------|
          | Default:       | 0                                         |
          |----------------+-------------------------------------------|
          | Range:         | 0 - 31                                    |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Controls V.23 split speed, V.23 split     |
          |                | screen, V.23 half duplex, and pulse       |
          |                | dialing.                                  |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     | » 0 1 | V.23 split speed operation disabled.    |
          |          |       |                                         |
          |          |       | V.23 split speed operation enabled.     |
          |----------+-------+-----------------------------------------|
          |    1     | » 0 1 | Select 75bps transmit, 1200bps receive. |
          |          |       |                                         |
          |          |       | Select 1200bps transmit, 75bps receive. |
          |----------+-------+-----------------------------------------|
          |    2     | » 0 1 | 1200bps transmit , 1200bps receive      |
          |          |       | disabled.                               |
          |          |       |                                         |
          |          |       | 1200bps transmit , 1200bps receive      |
          |          |       | enabled.                                |
          |----------+-------+-----------------------------------------|
          |   4, 3   | » 00  | 39ms make/61ms break at 10pps.          |
          |          | 01 10 |                                         |
          |          | 11    | 33ms make/67ms break at 10pps.          |
          |          |       |                                         |
          |          |       | 39ms make/61ms break at 20pps.          |
          |          |       |                                         |
          |          |       | 33ms make/67ms break at 20pps.          |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S31                   |
          |------------------------------------------------------------|
          | Format          | AT [cmds] S31=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Example:        | ATS31=40<CR>                             |
          |-----------------+------------------------------------------|
          | Default:        | 2                                        |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Controls auto-baud function and result   |
          |                 | codes.                                   |
          |------------------------------------------------------------|
          |    Bit    | Value  |               Function                |
          |-----------+--------+---------------------------------------|
          |     0     | 0      | Not used.                             |
          |-----------+--------+---------------------------------------|
          |     1     | 0 » 1  | Auto-baud disabled.                   |
          |           |        |                                       |
          |           |        | Auto-baud enabled.                    |
          |-----------+--------+---------------------------------------|
          |   3, 2    | » 00   | DTE speed displayed in result codes.  |
          |           | 01 10  |                                       |
          |           |        | Extended result codes enabled; DCE    |
          |           |        | speed displayed in result codes.      |
          |           |        |                                       |
          |           |        | DCE speed displayed in result codes.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK TYPE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \K1 <CR>                                 |
          |--------------+---------------------------------------------|
          | Description: | Configures action of break signal.          |
          |------------------------------------------------------------|
          | Command       |  Break from   |  Break from  |    Break    |
          |               | DTE while in  | DTE while in |  received   |
          |               |   Data mode   | Command mode | 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.        |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                         BREAK SEND                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \B3 &W<CR>                               |
          |--------------+---------------------------------------------|
          | Range:       | 1-9                                         |
          |--------------+---------------------------------------------|
          | Default      | 3                                           |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sends break to modem.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CALLING TONE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT -C0 &W<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Controls whether the DTE will allow the     |
          |              | modem to send a 1300Hz calling tone when    |
          |              | originating.                                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -C0      | Disable calling tone.                       |
          |--------------+---------------------------------------------|
          |     -C1      | Enable calling tone.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        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 for parallel interface  |
          |              | operation. Direct mode enabled for serial   |
          |              | interface.                                  |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled.                      |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode enabled.                 |
          |--------------+---------------------------------------------|
          |     \N4      | LAPM mode enabled.                          |
          |--------------+---------------------------------------------|
          |     \N5      | MNP mode enabled.                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CONVERT TO RELIABLE MODE                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Y  [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \Y<CR>                                   |
          |--------------+---------------------------------------------|
          | Description: | Attempts reliable mode link.                |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                   EXTENDED RESULT CODES                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \V1 %C1<CR>                              |
          |--------------+---------------------------------------------|
          | Description: | Selects extended result codes.              |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |     \V0      | Result codes specified by Vn enabled.       |
          |--------------+---------------------------------------------|
          |     \V1      | Extended MNP result codes enabled.          |
          |--------------+---------------------------------------------|
          |     \V2      | Extended V.42 result codes enabled.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \G1 &K3<CR>                              |
          |--------------+---------------------------------------------|
          | Description: | Selects modem port flow control.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          | » \G0        | Flow control disabled.                      |
          |--------------+---------------------------------------------|
          | \G1          | Flow control enabled.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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      | XON/XOFF flow control enabled.              |
          |--------------+---------------------------------------------|
          |     \Q2      | CTS flow control to DTE enabled.            |
          |--------------+---------------------------------------------|
          |     \Q3      | RTS/CTS flow control enabled.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S90=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Example:     | ATS90=20<CR>                                |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects. S90=0 will disable.            |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                      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.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    LINE SIGNAL QUALITY                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Q [cmds]                         |
          |--------------+---------------------------------------------|
          | Example:     | AT %Q &W<CR>                                |
          |--------------+---------------------------------------------|
          | Description: | Displays line signal quality.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      LOCK SERIAL PORT                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT %L3 \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 &MB28800<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.                 |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                        NORMAL MODE                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Z  [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \Z <CR>                                  |
          |--------------+---------------------------------------------|
          | Description: | Ends reliable mode link, initiate return to |
          |              | normal mode.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  ON-LINE IN RELIABLE MODE                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \O                                |
          |--------------+---------------------------------------------|
          | Example:     | AT \O <CR>                                  |
          |--------------+---------------------------------------------|
          | Description: | Modem attempts MNP connection in normal     |
          |              | mode.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S16=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Example:       | ATS16=40<CR>                              |
          |----------------+-------------------------------------------|
          | Default:       | 0                                         |
          |----------------+-------------------------------------------|
          | Range:         | 0-125                                     |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Controls loopback tests: analog, digital, |
          |                | remote digital, and self tests.           |
          |------------------------------------------------------------|
          |   Bit    | Value  |                Function                |
          |----------+--------+----------------------------------------|
          |    0     | » 0 1  | Local analog loopback disabled.        |
          |          |        |                                        |
          |          |        | Local analog loopback enabled.         |
          |----------+--------+----------------------------------------|
          |    1     | 0      | Not used.                              |
          |----------+--------+----------------------------------------|
          |    2     | » 0 1  | Local digital loopback disabled.       |
          |          |        |                                        |
          |          |        | Local digital loopback enabled.        |
          |----------+--------+----------------------------------------|
          |    3     | 0 1    | Modem not in remote digital loopback.  |
          |          |        |                                        |
          |          |        | Remote digital loopback in progress.   |
          |----------+--------+----------------------------------------|
          |    4     | » 0 1  | Remote digital loopback not requested. |
          |          |        |                                        |
          |          |        | Remote digital loopback requested.     |
          |----------+--------+----------------------------------------|
          |    5     | » 0 1  | Remote digital loopback w/ self-test   |
          |          |        | disabled.                              |
          |          |        |                                        |
          |          |        | Remote digital loopback w/ self-test   |
          |          |        | enabled.                               |
          |----------+--------+----------------------------------------|
          |    6     | » 0 1  | Local analog loopback w/ self-test     |
          |          |        | disabled.                              |
          |          |        |                                        |
          |          |        | Local analog loopback w/ self-test     |
          |          |        | enabled.                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    V.42 DETECTION PHASE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT -J1 &W<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Controls V.42 detection.                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -J0      | V.42 detection disabled.                    |
          |--------------+---------------------------------------------|
          |     -J1      | V.42 detection enabled.                     |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                V.42bis COMPRESSION CONTROL                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] "Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT "H3 &W<CR>                               |
          |--------------+---------------------------------------------|
          | Description: | Controls V.42bis data compression           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     "H0      | V.42bis disabled.                           |
          |--------------+---------------------------------------------|
          |     "H1      | V.42bis when transmitting enabled.          |
          |--------------+---------------------------------------------|
          |     "H2      | V.42bis when receiving enabled.             |
          |--------------+---------------------------------------------|
          |     "H3      | V.42bis when transmitting/receiving         |
          |              | enabled.                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               V.42bis MAXIMUM STRING LENGTH                |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] "On [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT "O32 <CR>                                |
          |--------------+---------------------------------------------|
          | Default:     | 32                                          |
          |--------------+---------------------------------------------|
          | Range:       | 6 - 64                                      |
          |--------------+---------------------------------------------|
          | Unit:        | unidentified.                               |
          |--------------+---------------------------------------------|
          | Description: | Selects string size for V.42bis             |
          |              | compression.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   XON/XOFF PASS-THROUGH                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Xn [cmds]                        |
          |--------------+---------------------------------------------|
          | Example:     | AT \X7 O<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.        |
          +------------------------------------------------------------+
       
                               V.25bis Command Set
       
          +------------------------------------------------------------+
          |                   CALL REQUESTED NUMBER                    |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CRI<#>;xxxx                                 |
          |--------------+---------------------------------------------|
          | Example:     | CRI1-303 555-1212;irisbean<CR>              |
          |--------------+---------------------------------------------|
          | Description: | Same as CRN. Dials the number given. It     |
          |              | will ignore spaces and hyphens in the       |
          |              | string. If the string is more than fifty    |
          |              | characters long, a result of INV will be    |
          |              | returned and the identification string xxxx |
          |              | will be ignored.                            |
          +------------------------------------------------------------+
       
                                                                       -
       
          +------------------------------------------------------------+
          |                   PROGRAM IDENTIFICATION                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | PRI                                         |
          |--------------+---------------------------------------------|
          | Example:     | PRI <CR>                                    |
          |--------------+---------------------------------------------|
          | Description: | Modem returns VAL.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   REQUEST LISTED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLNn <CR>                                   |
          |--------------+---------------------------------------------|
          | Example:     | RLN6<CR>                                    |
          |--------------+---------------------------------------------|
          | Range:       | 0-19                                        |
          |--------------+---------------------------------------------|
          | Unit:        | Memory location                             |
          |--------------+---------------------------------------------|
          | Description: | Display dial string stored at memory        |
          |              | address n. If n not specified, all dial     |
          |              | strings are displayed                       |