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       # UNIQUE HARDWARE CO., LTD.
       
          VIGUS 288 + FAX
       
          Card Type              Fax, Modem (synchronous/asynchronous)   
          Chip Set               Unidentified                            
          Maximum Data Rate      28.8Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Bus               External                                
          Fax Class              Class I & II                            
          Data Modulation        ITU-T V.22, V.22bis, V.32, V.32bis,     
          Protocol               V.34                                    
                                                                         
                                 Rockwell V.FC                           
          Fax Modulation         ITU-T V.17, V.29                        
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label  |    Function    |   Label    |
          |------------------------------------------------------------|
          | Power switch             |   SW1   | Phone line out | CN3  |
          |--------------------------+---------+----------------+------|
          | DC power                 |   CN1   | Phone line in  | CN4  |
          |--------------------------+---------+----------------+------|
          | RS-232/422               |   CN2   |                |      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  | Color | Status |             Condition              |
          |------+-------+--------+------------------------------------|
          |  CD  |  Red  |   On   |      Carrier signal detected       |
          |------+-------+--------+------------------------------------|
          |  CD  |  Red  |  Off   |    Carrier signal not detected     |
          |------+-------+--------+------------------------------------|
          |  OH  |  Red  |   On   |         Modem is off-hook          |
          |------+-------+--------+------------------------------------|
          |  OH  |  Red  |  Off   |          Modem is on-hook          |
          |------+-------+--------+------------------------------------|
          |  RD  |  Red  |   On   |      Modem is receiving data       |
          |------+-------+--------+------------------------------------|
          |  RD  |  Red  |  Off   |    Modem is not receiving data     |
          |------+-------+--------+------------------------------------|
          |  SD  |  Red  |   On   |     Modem is transmitting data     |
          |------+-------+--------+------------------------------------|
          |  SD  |  Red  |  Off   |   Modem is not transmitting data   |
          |------+-------+--------+------------------------------------|
          |  TR  |  Red  |   On   |         DTR signal is high         |
          |------+-------+--------+------------------------------------|
          |  TR  |  Red  |  Off   |         DTR signal is low          |
          |------+-------+--------+------------------------------------|
          |  MR  |  Red  |   On   |            Power is on             |
          |------+-------+--------+------------------------------------|
          |  MR  |  Red  |  Off   |            Power is off            |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |         AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain mode and              |
          |              | fallback/fall-forward                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %E0     | Auto-retrain disabled                       |
          |--------------+---------------------------------------------|
          |     %E1      | Auto-retrain enabled                        |
          |--------------+---------------------------------------------|
          |     %E2      | Auto-fallback/fall-forward enabled          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S14=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 138                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-174                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls echo, result codes and display,    |
          |              | dial mode, and answer/originate mode.       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Command echo disabled                       |
          |      |       |                                             |
          |      |   í 1 | Command echo enabled                        |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Result codes enabled                        |
          |      |       |                                             |
          |      |     1 | Result codes disabled                       |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Display result codes in numeric format      |
          |      |       |                                             |
          |      |   í 1 | Display result codes in verbose format      |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | Tone dial enabled                           |
          |      |       |                                             |
          |      |     1 | Pulse dial enabled                          |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Answer mode enabled                         |
          |      |       |                                             |
          |      |   í 1 | Originate mode enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 52                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-253                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects jack type, CTS/DCD/DSR signals, low |
          |              | DTR action, and the long space disconnect   |
          |              | function.                                   |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Selects RJ-11, RJ-41S, or RJ45S jack        |
          |      |       |                                             |
          |      |     1 | Selects RJ-12 or RJ-13 jack                 |
          |------+-------+---------------------------------------------|
          |  1   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  2   |     0 | CTS forced high                             |
          |      |       |                                             |
          |      |   í 1 | CTS follows RTS                             |
          |------+-------+---------------------------------------------|
          | 4, 3 |    00 | DTR signal ignored                          |
          |      |       |                                             |
          |      |    01 | Modem goes to command mode on low DTR       |
          |      |       |                                             |
          |      |  í 10 | Modem disconnects on low DTR; Auto-Answer   |
          |      |       | is disabled.                                |
          |      |    11 |                                             |
          |      |       | Modem is initialized on low DTR             |
          |------+-------+---------------------------------------------|
          |  5   |     0 | DCD forced high                             |
          |      |       |                                             |
          |      |   í 1 | DCD normal                                  |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | DSR forced high                             |
          |      |       |                                             |
          |      |     1 | DSR normal                                  |
          |------+-------+---------------------------------------------|
          |  7   |   í 0 | Long space disconnect function disabled     |
          |      |       |                                             |
          |      |     1 | Long space disconnect function enabled      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S22                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S22=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 117                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume and controls, and   |
          |              | limits results codes.                       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 1, 0 |    00 | Volume off                                  |
          |      |       |                                             |
          |      |  í 01 | Low level volume                            |
          |      |       |                                             |
          |      |    10 | Medium level volume                         |
          |      |       |                                             |
          |      |    11 | High level volume                           |
          |------+-------+---------------------------------------------|
          | 3, 2 |    00 | Speaker off                                 |
          |      |       |                                             |
          |      |  í 01 | Speaker off on carrier                      |
          |      |       |                                             |
          |      |    10 | Speaker always on                           |
          |      |       |                                             |
          |      |    11 | Speaker on during handshake                 |
          |------+-------+---------------------------------------------|
          | 6 -  |   000 | Basic result codes only enabled             |
          |  4   |       |                                             |
          |      |   100 | Basic and connection speed result codes     |
          |      |       | enabled                                     |
          |      |   101 |                                             |
          |      |       | Basic and connection speed result codes and |
          |      |   110 | dialtone detection enabled                  |
          |      |       |                                             |
          |      | í 111 | All result codes except dialtone detection  |
          |      |       | enabled                                     |
          |      |       |                                             |
          |      |       | All result codes enabled                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 61                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-189                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Grants/denies remote digital loopback,      |
          |              | controls DTE rate and parity, and sets      |
          |              | guard tone.                                 |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Remote digital loopback denied              |
          |      |       |                                             |
          |      |   í 1 | Remote digital loopback allowed             |
          |------+-------+---------------------------------------------|
          | 3 -  |   000 | Sets serial port speed to 0-300bps          |
          |  1   |       |                                             |
          |      |   001 | Sets serial port speed to 600bps            |
          |      |       |                                             |
          |      |   010 | Sets serial port speed to 1200bps           |
          |      |       |                                             |
          |      |   011 | Sets serial port speed to 2400bps           |
          |      |       |                                             |
          |      |   100 | Sets serial port speed to 4800bps           |
          |      |       |                                             |
          |      |   101 | Sets serial port speed to 9600bps           |
          |      |       |                                             |
          |      | í 110 | Sets serial port speed to 19200bps          |
          |------+-------+---------------------------------------------|
          | 5, 4 |    00 | Parity even                                 |
          |      |       |                                             |
          |      |    01 | Not used                                    |
          |      |       |                                             |
          |      |    10 | Parity odd                                  |
          |      |       |                                             |
          |      |  í 11 | No Parity                                   |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  7   |   í 0 | Guard tone disabled                         |
          |      |       |                                             |
          |      |     1 | Guard tone disabled                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S27                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S27=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 73                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-111                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects synchronous/asynchronous mode, line |
          |              | type, clock source, and ITU-T/Bell modes.   |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  3,  |   000 | Asynchronous mode, serial port speed        |
          | 1, 0 |       | follows connect speed                       |
          |      |   001 |                                             |
          |      |       | Asynchronous off-line command mode and      |
          |      |   010 | synchronous connect mode                    |
          |      |       |                                             |
          |      |   011 | Asynchronous off-line command mode; modem   |
          |      |       | auto-dials first number in directory, then  |
          |      |   100 | synchronous connect mode                    |
          |      |       |                                             |
          |      | í 101 | Asynchronous off-line command mode on low   |
          |      |       | DTR, synchronous connect mode on high DTR   |
          |      |   111 |                                             |
          |      |       | Not used                                    |
          |      |       |                                             |
          |      |       | Error correction mode                       |
          |      |       |                                             |
          |      |       | Buffered asynchronous mode                  |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Switched line                               |
          |      |       |                                             |
          |      |     1 | Leased line                                 |
          |------+-------+---------------------------------------------|
          | 5, 4 |  í 00 | Local modem generates transmit clock source |
          |      |       |                                             |
          |      |    01 | Local DTE generates transmit clock source   |
          |      |       |                                             |
          |      |    10 | Remote DCE/DTE generates transmit clock     |
          |      |       | source                                      |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | ITU/T mode                                  |
          |      |       |                                             |
          |      |     1 | Bell mode                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S28                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S28=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-24                                        |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls pulse dialing.                     |
          |--------------+---------------------------------------------|
          | Note:        | AT&P returns ‘OK’ if valid, S28=0 should be |
          |              | set at all times.                           |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 2 -  | í 000 | Not used                                    |
          |  0   |       |                                             |
          |------+-------+---------------------------------------------|
          | 4, 3 |  í 00 | 39ms make/61ms break at 10pps               |
          |      |       |                                             |
          |      |    01 | 33ms make/67ms break at 10pps               |
          |      |       |                                             |
          |      |    10 | 39ms make/61ms break at 20pps               |
          |      |       |                                             |
          |      |    11 | 33ms make/67ms break at 20pps               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S31                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S31=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Default:       | 194                                       |
          |----------------+-------------------------------------------|
          | Range:         | 0-10                                      |
          |----------------+-------------------------------------------|
          | Description:   | Select automode and extended result code  |
          |                | format.                                   |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |   í 0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     1     |     0 | Auto-mode detection disabled           |
          |           |       |                                        |
          |           |   í 1 | In originate mode, handshake begins at |
          |           |       | line speed designated by the S37       |
          |           |       | register. Modem can shift to a slower  |
          |           |       | speed if necessary.                    |
          |           |       |                                        |
          |           |       | In answer mode, handshake attempted    |
          |           |       | with the following protocols in order  |
          |           |       | - V.FC, V.32bis, V.32, V.22bis, V.22   |
          |           |       | or Bell 212, V.21, and Bell 103        |
          |-----------+-------+----------------------------------------|
          |   3, 2    |  í 00 | Enables CONNECT result codes to report |
          |           |       | DTE speed                              |
          |           |    01 |                                        |
          |           |       | Full reporting of CONNECT result codes |
          |           |    10 |                                        |
          |           |       | Enables CONNECT result codes to report |
          |           |       | DCE speed                              |
          |-----------+-------+----------------------------------------|
          |   7 - 4   |     í | Not used                               |
          |           |  1100 |                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S40                   |
          |------------------------------------------------------------|
          | Format          | AT [cmds] S40=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Default:        | 105                                      |
          |-----------------+------------------------------------------|
          | Range:          | 0-233                                    |
          |-----------------+------------------------------------------|
          | Unit:           | Bit-mapped                               |
          |-----------------+------------------------------------------|
          | Description:    | Controls break handling, and block size. |
          |-----------------+------------------------------------------|
          |   Bit   | Value |                 Function                 |
          |---------+-------+------------------------------------------|
          |  2 - 0  | í 001 | Not used                                 |
          |---------+-------+------------------------------------------|
          | 5, 4, 3 |   000 | \K0                                      |
          |         |       |                                          |
          |         |   001 | \K1                                      |
          |         |       |                                          |
          |         |   010 | \K2                                      |
          |         |       |                                          |
          |         |   011 | \K3                                      |
          |         |       |                                          |
          |         |   100 | \K4                                      |
          |         |       |                                          |
          |         | í 101 | \K5                                      |
          |---------+-------+------------------------------------------|
          |  7, 6   |    00 | MNP block size is 64 characters          |
          |         |       |                                          |
          |         |  í 01 | MNP block size is 128 characters         |
          |         |       |                                          |
          |         |    10 | MNP block size is 192 characters         |
          |         |       |                                          |
          |         |    11 | MNP block size is 256 characters         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S41                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S41=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 3                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-91                                        |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects compression, auto-retrain and       |
          |              | auto-fallback/fall-forward, flow control,   |
          |              | and MNP mode.                               |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 1 -  |    00 | Data compression disabled                   |
          |  0   |       |                                             |
          |      |    01 | MNP5 enabled                                |
          |      |       |                                             |
          |      |    10 | V.42bis enabled                             |
          |      |       |                                             |
          |      |  í 11 | MNP5 and V.42bis enabled                    |
          |------+-------+---------------------------------------------|
          | 6, 2 |  í 00 | Auto-retrain disabled                       |
          |      |       |                                             |
          |      |    01 | Auto-retrain enabled                        |
          |      |       |                                             |
          |      |    10 | Auto-fallback/fall-forward enabled          |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | Flow control disabled                       |
          |      |       |                                             |
          |      |     1 | Flow control enabled                        |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Stream mode for MNP                         |
          |      |       |                                             |
          |      |     1 | Block mode for MNP                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK SEND                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 3                                           |
          |--------------+---------------------------------------------|
          | Range:       | 1-9                                         |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sends break to modem                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK TYPE                         |
          |------------------------------------------------------------|
          | Type:               | Configuration                        |
          |---------------------+--------------------------------------|
          | Format:             | AT [cmds] \Kn [cmds]                 |
          |---------------------+--------------------------------------|
          | Description:        | Configures action of break signal    |
          |------------------------------------------------------------|
          |  Command  |  Break from  | Modem receives | Break received |
          |           |     DTE      |       \B       |  from remote   |
          |           |              |                |     modem      |
          |-----------+--------------+----------------+----------------|
          |    \K0    | Online       | Break sent to  | Buffers        |
          |           | command mode | remote modem   | cleared, break |
          |           | enabled,     | and buffers    | sent to DTE    |
          |           | send no      | cleared        |                |
          |           | break to     |                |                |
          |           | remote modem |                |                |
          |-----------+--------------+----------------+----------------|
          |    \K1    | Break sent   | Break sent to  | Buffers        |
          |           | to remote    | remote modem   | cleared, break |
          |           | modem and    | and buffers    | sent to DTE    |
          |           | buffers      | cleared        |                |
          |           | cleared      |                |                |
          |-----------+--------------+----------------+----------------|
          |    \K2    | Online       | Send break to  | Break sent     |
          |           | command mode | remote modem   | immediately to |
          |           | enabled,     | immediately    | DTE            |
          |           | send no      |                |                |
          |           | break to     |                |                |
          |           | remote modem |                |                |
          |-----------+--------------+----------------+----------------|
          |    \K3    | Send break   | Send break to  | Break sent     |
          |           | to remote    | remote modem   | immediately to |
          |           | modem        | immediately    | DTE            |
          |           | immediately  |                |                |
          |-----------+--------------+----------------+----------------|
          |    \K4    | Online       | Send break     | Break sent     |
          |           | command mode | with           | with received  |
          |           | enabled,     | transmitted    | data to the    |
          |           | send no      | data           | DTE            |
          |           | break to     |                |                |
          |           | remote modem |                |                |
          |-----------+--------------+----------------+----------------|
          |   í \K5   | Send break   | Send break     | Break sent     |
          |           | with         | with           | with received  |
          |           | transmitted  | transmitted    | data to the    |
          |           | data         | data           | DTE            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 enabled                                |
          |--------------+---------------------------------------------|
          |     %C2      | V.42bis enabled                             |
          |--------------+---------------------------------------------|
          |    í %C3     | MNP5 and V.42bis enabled                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the type of connection the modem   |
          |              | will operate in                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N1      | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled                       |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N4      | V.42 reliable mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N5      | MNP reliable mode enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Modifier   |                  Function                   |
          |--------------+---------------------------------------------|
          |      J       | Link will be negotiated at highest possible |
          |              | speed                                       |
          |--------------+---------------------------------------------|
          |      L       | Re-dial last number                         |
          |--------------+---------------------------------------------|
          |      P       | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      R       | Accepted but not acted upon                 |
          |--------------+---------------------------------------------|
          |     S=n      | Dial stored telephone number n              |
          |--------------+---------------------------------------------|
          |      T       | Tone dialing enabled                        |
          |--------------+---------------------------------------------|
          |      W       | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      !       | Modem commanded to go off-hook for          |
          |              | specified time before returning on-hook.    |
          |--------------+---------------------------------------------|
          |      @       | Wait for quiet answer                       |
          |--------------+---------------------------------------------|
          |      ,       | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      ;       | Modem returned to command state after       |
          |              | dialing                                     |
          |--------------+---------------------------------------------|
          |      ^       | Enable calling tone                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FLASH DIAL MODIFIER TIME                  |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S29=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .01 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Time the modem will go on-hook upon         |
          |              | receiving the ! dial modifier in dial       |
          |              | string.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem port flow control             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í \G0     | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     \G1      | Flow control enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Read-only Register                          |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S39? [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Displays the current flow control           |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     í 3      | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |      4       | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |      5       | Transparent XON/XOFF flow control enabled   |
          |--------------+---------------------------------------------|
          |      6       | Both RTS/CTS and XON/XOFF flow control      |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               FLOW CONTROL CHARACTER - XOFF                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S33=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 19                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL CHARACTER - XON                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S32=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 17                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S30=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 10 seconds                                  |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating hang-up         |
          |              | process. S30=0 will disable timer.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     LINE SIGNAL LEVEL                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %L [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Returns a value which indicates the         |
          |              | received line signal level (-dBm)           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    LINE SIGNAL QUALITY                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Q [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Returns a value which indicates line signal |
          |              | quality                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            MAXIMUM BLOCK SIZE FOR TRANSMISSION             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum transmittable block size   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \A0      | MNP block size is 64 characters             |
          |--------------+---------------------------------------------|
          |    í \A1     | MNP block size is 128 characters            |
          |--------------+---------------------------------------------|
          |     \A2      | MNP block size is 192 characters            |
          |--------------+---------------------------------------------|
          |     \A3      | MNP block size is 256 characters            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  MNP - STREAM/BLOCK MODE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the transfer mode for MNP link      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í \L0     | Stream mode for MNP enabled                 |
          |--------------+---------------------------------------------|
          |     \L1      | Block mode for MNP enabled                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports product code                        |
          |--------------+---------------------------------------------|
          |      I1      | Reports ROM checksum                        |
          |--------------+---------------------------------------------|
          |      I2      | Tests and compares ROM checksum, reports    |
          |              | ‘OK’.                                       |
          |--------------+---------------------------------------------|
          |      I3      | Reports modem model and firmware revision   |
          |--------------+---------------------------------------------|
          |      I4      | Reports modem identifier string             |
          |--------------+---------------------------------------------|
          |      I5      | Reports country code                        |
          |--------------+---------------------------------------------|
          |      I6      | Reports modem series identifier string      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-125                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls loopback tests: analog, digital,   |
          |              | remote digital, and self tests.             |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Local analog loopback not in progress       |
          |      |       |                                             |
          |      |     1 | Local analog loopback in progress           |
          |------+-------+---------------------------------------------|
          |  1   |   í 0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Local digital loopback not in progress      |
          |      |       |                                             |
          |      |     1 | Local digital loopback in progress          |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | Modem not in remote digital loopback        |
          |      |       |                                             |
          |      |     1 | Remote digital loopback in progress         |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Remote digital loopback not requested       |
          |      |       |                                             |
          |      |     1 | Remote digital loopback requested           |
          |------+-------+---------------------------------------------|
          |  5   |   í 0 | Remote digital loopback w/ self-test not in |
          |      |       | progress                                    |
          |      |     1 |                                             |
          |      |       | Remote digital loopback w/ self-test in     |
          |      |       | progress                                    |
          |------+-------+---------------------------------------------|
          |  6   |   í 0 | Local analog loopback w/ self-test not in   |
          |      |       | progress                                    |
          |      |     1 |                                             |
          |      |       | Local analog loopback w/ self-test in       |
          |      |       | progress                                    |
          +------------------------------------------------------------+