COMPUTER PERIPHERALS, INC. ========================== VIVA 28.8 INTERNAL DATA/FAX Modem Type Data (asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus 8-bit ISA Fax Class Class I Data Modulation Bell 103A/212A Protocol ITU-T V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | Line out | CN1 | Line in | CN2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | BASE I/O ADDRESS SELECTION | |------------------------------------------------------------| | Port | SW1/1 | SW1/2 | |--------------------+-------------------+-------------------| | COM1: (3F8h) | On | On | |--------------------+-------------------+-------------------| | COM2: (2F8h) | Off | On | |--------------------+-------------------+-------------------| | COM3: (3E8h) | On | Off | |--------------------+-------------------+-------------------| | COM4: (2E8h) | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT SELECTION | |------------------------------------------------------------| | IRQ | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 | |------+--------+--------+--------+--------+--------+--------| | 3 | On | Off | Off | Off | Off | Off | |------+--------+--------+--------+--------+--------+--------| | 4 | Off | On | Off | Off | Off | Off | |------+--------+--------+--------+--------+--------+--------| | 5 | Off | Off | On | Off | Off | Off | |------+--------+--------+--------+--------+--------+--------| | 7 | Off | Off | Off | Off | On | Off | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ACCEPT AUTO-RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \U [cmds] | |--------------+---------------------------------------------| | Description: | Accepts remote modem's request for reliable | | | link | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO FALL FORWARD/FALLBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Gn [cmds] | |--------------+---------------------------------------------| | Description: | Selects auto fallback | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %G0 | Fallback disabled | |--------------+---------------------------------------------| | %G1 | Fallback enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %An [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character. %A0 will | | | disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE TIME BUFFER CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |--------------+---------------------------------------------| | Description: | Controls the handling of incoming data | | | during auto-reliable time period | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \CO | Data is discarded | |--------------+---------------------------------------------| | \C1 | Data is buffered | |--------------+---------------------------------------------| | \C2 | Data is discarded, sets to normal mode and | | | sends auto-reliable character to serial | | | port. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Description: | Selects auto-retrain mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %E0 | Auto-retrain disable. | |--------------+---------------------------------------------| | %E1 | Auto-retrain enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format | AT [cmds] S14? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays echo, result codes, result code | | | display, dial mode, and answer/originate | | | mode. | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | 0 | Not used | |----------+--------+----------------------------------------| | 1 | 0 | Command echo disabled | | | | | | | 1 | Command echo enabled | |----------+--------+----------------------------------------| | 2 | 0 | Result codes enabled | | | | | | | 1 | Result codes disabled | |----------+--------+----------------------------------------| | 3 | 0 | Display result codes in numeric format | | | | | | | 1 | Display result codes in verbose format | |----------+--------+----------------------------------------| | 4 | 0 | Not used | |----------+--------+----------------------------------------| | 5 | 0 | Tone dial enabled | | | | | | | 1 | Pulse dial enabled | |----------+--------+----------------------------------------| | 6 | 0 | Not used | |----------+--------+----------------------------------------| | 7 | 0 | Answer mode enabled | | | | | | | 1 | Originate mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S21 | |------------------------------------------------------------| | Format | AT [cmds] S21? [cmds] | |----------------+-------------------------------------------| | Default: | Read-only | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Displays jack type, CTS signal, low DTR | | | action, DCD signal, DSR signal, and the | | | long space disconnect function. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | 0 | Selects RJ-11, RJ-41S, or RJ45S jack | | | | | | | 1 | Selects RJ-12 or RJ-13 jack | |----------+-------+-----------------------------------------| | 1 | 0 | Not used | |----------+-------+-----------------------------------------| | 2 | 0 | CTS follows RTS | | | | | | | 1 | CTS forced high | |----------+-------+-----------------------------------------| | 4, 3 | 00 | DTR signal ignored | | | | | | | 01 | Modem goes to command mode on low DTR | | | | | | | 10 | Modem disconnects on low DTR. | | | | Auto-Answer is disabled | | | 11 | | | | | Modem is initialized on low DTR | |----------+-------+-----------------------------------------| | 5 | 0 | DCD forced high | | | | | | | 1 | DCD normal | |----------+-------+-----------------------------------------| | 6 | 0 | DSR forced high | | | | | | | 1 | DSR normal | |----------+-------+-----------------------------------------| | 7 | 0 | Long space disconnect function disabled | | | | | | | 1 | Long space disconnect function enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays speaker volume and controls, | | | limits results codes, and make/break | | | pulse ratio. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 1, 0 | 01 | On volume | | | | | | | 10 | Medium level volume | | | | | | | 11 | High level volume | |------------+-------+---------------------------------------| | 3, 2 | 00 | Speaker off | | | | | | | 01 | Speaker off on carrier | | | | | | | 10 | Speaker always on | | | | | | | 11 | Speaker on during handshake | |------------+-------+---------------------------------------| | 6, 5, 4 | 000 | Basic result codes only enabled | | | | | | | 100 | Basic and connection speed result | | | | codes enabled | | | 101 | | | | | Basic and connection speed result | | | 110 | codes and dialtone detection enabled | | | | | | | 111 | All result codes except dialtone | | | | detection enabled | | | | | | | | All result codes enabled | |------------+-------+---------------------------------------| | 7 | 0 | 39/61ms at 10pps (North America) | | | | | | | 1 | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays remote digital loopback, DTE | | | rate and parity, and guard tone. | |------------------------------------------------------------| | Bit | i | Function | | | Value | | |------------+-------+---------------------------------------| | 0 | 0 | Remote digital loopback denied | | | | | | | 1 | Remote digital loopback allowed | |------------+-------+---------------------------------------| | 3, 2, 1 | 000 | Sets serial port speed to 0-300bps | | | | | | | 001 | Sets serial port speed to 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 | | | | | | | 110 | Sets serial port speed to 19200bps | | | | | | | 111 | Sets serial port speed to 38400bps | |------------+-------+---------------------------------------| | 5,4 | 01 | Space Parity/No Parity | |------------+-------+---------------------------------------| | 7, 6 | 00 | Guard tone disabled | | | | | | | 01 | Guard tone 550Hz enabled | | | | | | | 10 | Guard tone 1800Hz enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27? [cmds] | |----------------+-------------------------------------------| | Default: | Read-only | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Displays synchronous/asynchronous mode, | | | Line type, clock source, and ITU-T/Bell | | | modes. | |------------------------------------------------------------| | Bit | i Value | Function | |-----------+----------+-------------------------------------| | 3, 1, 0 | 000 | Asynchronous mode, serial port | | | | speed follows connect speed | | | 001 | | | | | Asynchronous command mode and | | | 010 | synchronous connect mode | | | | | | | 011 | Asynchronous command mode and | | | | synchronous connect mode | | | 100 | | | | | Asynchronous command mode on low | | | | DTR, synchronous connect mode on | | | | high DTR | | | | | | | | Hayes AutoSync(TM) mode | |-----------+----------+-------------------------------------| | 2 | 0 | Dial up line | | | | | | | 1 | Leased line | |-----------+----------+-------------------------------------| | 5, 4 | 00 | Internal transmit clock source | | | | | | | 01 | External transmit clock source | | | | | | | 10 | Remote transmit clock source | |-----------+----------+-------------------------------------| | 6 | 0 | CCITT mode | | | | | | | 1 | Bell mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-9 | |--------------+---------------------------------------------| | 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 | Break | | | DTE | receives \B | received | | | | | from remote | | | | | modem | |---------------+---------------+--------------+-------------| | \K0 | Online | Break sent | Buffers | | | command mode | to remote | cleared, | | | enabled, send | modem and | break sent | | | no break to | buffered | to DTE | | | remote modem | cleared | | |---------------+---------------+--------------+-------------| | \K1 | Break sent to | Break sent | Buffers | | | remote modem | to remote | cleared, | | | and buffered | modem and | break sent | | | cleared | buffered | to DTE | | | | cleared | | |---------------+---------------+--------------+-------------| | \K2 | Online | Send break | Break sent | | | command mode | to remote | immediately | | | enabled, send | modem | to DTE | | | no break to | immediately | | | | remote modem | | | |---------------+---------------+--------------+-------------| | \K3 | Send break to | Send break | Break sent | | | remote modem | to remote | immediately | | | immediately | modem | to DTE | | | | immediately | | |---------------+---------------+--------------+-------------| | \K4 | Online | Send break | Break sent | | | command mode | with | with | | | enabled, send | transmitted | received | | | no break to | data | data to the | | | remote modem | | DTE | |---------------+---------------+--------------+-------------| |>> \K5 | Send break | Send break | Break sent | | | with | with | with | | | transmitted | transmitted | received | | | data | data | data to the | | | | | DTE | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLING TONE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Cn [cmds] | |--------------+---------------------------------------------| | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %C0 | Data compression disabled | |--------------+---------------------------------------------| |>> %C1 | Data compression enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets connect mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode enabled | |--------------+---------------------------------------------| | \N1 | Direct mode enabled | |--------------+---------------------------------------------| | \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] | |--------------+---------------------------------------------| | Description: | Initiates reliable mode link | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Description: | Selects extended result codes | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \V0 | Extended result codes disabled | |--------------+---------------------------------------------| | \V1 | MNP extended result codes enabled | |--------------+---------------------------------------------| | \V2 | V.42 extended result codes enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | 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] | |--------------+---------------------------------------------| | 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: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-90 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S90=n [cmds] | |--------------+---------------------------------------------| | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SIGNAL QUALITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Qn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Description: | Sets the line quality at which the modem | | | will retrain. If the line quality drops | | | below n, the modem will retrain. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Jn [cmds] | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \J0 | Serial speed locked | |--------------+---------------------------------------------| | \J1 | Serial speed follows connect speed | +------------------------------------------------------------+ +------------------------------------------------------------+ | MODULATION SELECTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] +MS=xx,y,zzz,aaa [cmds] | |--------------+---------------------------------------------| | Example: | AT+MS10,0,4800,26400 | |--------------+---------------------------------------------| | Description: | Sets options for active protocol. The | | | transfer rates specified by z and a must be | | | valid for the protocol selected. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | x=0 | V.21 | |--------------+---------------------------------------------| | x=1 | V.22 | |--------------+---------------------------------------------| | x=2 | V.22bis | |--------------+---------------------------------------------| | x=3 | V.23 1200/75 | |--------------+---------------------------------------------| | x=8 | V.32 | |--------------+---------------------------------------------| | x=9 | V.32bis | |--------------+---------------------------------------------| |>> x=10 | V.34 | |--------------+---------------------------------------------| | x=13 | V.23 75/1200 | |--------------+---------------------------------------------| | x=64 | Bell 103A | |--------------+---------------------------------------------| | x=69 | Bell 212A | |--------------+---------------------------------------------| | x=74 | V.FC | |--------------+---------------------------------------------| | y=0 | Automode disabled | |--------------+---------------------------------------------| | y=1 | Auto-detect highest speed enabled without | | | V.8 (except for V.34) | |--------------+---------------------------------------------| |>> y=2 | Auto-detect highest speed enabled with V.8 | |--------------+---------------------------------------------| | z, a=300 | Set minimum or maximum transfer rate at | | | 300bps, respectively. | |--------------+---------------------------------------------| | z, a=1200 | Set minimum or maximum transfer rate at | | | 1200bps, respectively. | |--------------+---------------------------------------------| | z, a=2400 | Set minimum or maximum transfer rate at | | | 2400bps, respectively. | |--------------+---------------------------------------------| | z, a=4800 | Set minimum or maximum transfer rate at | | | 4800bps, respectively. | |--------------+---------------------------------------------| | z, a=9600 | Set minimum or maximum transfer rate at | | | 9600bps, respectively. | |--------------+---------------------------------------------| | z, a=12000 | Set minimum or maximum transfer rate at | | | 12000bps, respectively. | |--------------+---------------------------------------------| | z, a=14400 | Set minimum or maximum transfer rate at | | | 14400bps, respectively. | |--------------+---------------------------------------------| | z, a=16800 | Set minimum or maximum transfer rate at | | | 16800bps, respectively. | |--------------+---------------------------------------------| | z, a=19200 | Set minimum or maximum transfer rate at | | | 19200bps, respectively. | |--------------+---------------------------------------------| | z, a=21600 | Set minimum or maximum transfer rate at | | | 21600bps, respectively. | |--------------+---------------------------------------------| | z, a=24000 | Set minimum or maximum transfer rate at | | | 24000bps, respectively. | |--------------+---------------------------------------------| | z, a=26400 | Set minimum or maximum transfer rate at | | | 26400bps, respectively. | |--------------+---------------------------------------------| | z, a=28800 | Set minimum or maximum transfer rate at | | | 28800bps, respectively. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MODULATION SELECTION DISPLAY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] +MS? [cmds] | |--------------+---------------------------------------------| | Description: | Displays modulation, automode, minimum rate | | | and maximum rate settings | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | \A1 | MNP block size is 128 characters | |--------------+---------------------------------------------| | \A2 | MNP block size is 192 characters | |--------------+---------------------------------------------| |>> \A3 | MNP block size is 256 characters | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON-LINE IN RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \O [cmds] | |--------------+---------------------------------------------| | Description: | Returns to on-line and requests reliable | | | mode connection | +------------------------------------------------------------+ +------------------------------------------------------------+ | SWITCH TO NORMAL MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Z [cmds] | |--------------+---------------------------------------------| | Description: | Switches to normal mode from MNP mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Format | AT [cmds] S16? [cmds] | |---------------+--------------------------------------------| | Default: | Read-only | |---------------+--------------------------------------------| | Range: | 0-255 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Displays loopback tests, analog, digital, | | | remote digital, and self tests. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 | 0 | Local analog loopback not in progress | | | | | | | 1 | Local analog loopback in progress | |---------+-------+------------------------------------------| | 1 | 0 | Not used | |---------+-------+------------------------------------------| | 2 | 0 | Local digital loopback not in progress | | | | | | | 1 | Local digital loopback in progress | |---------+-------+------------------------------------------| | 3 | 0 | Modem not in remote digital loopback | | | | | | | 1 | Remote digital loopback in progress | |---------+-------+------------------------------------------| | 4 | 0 | Remote digital loopback not requested | | | | | | | 1 | Remote digital loopback requested | |---------+-------+------------------------------------------| | 5 | 0 | Remote digital loopback w/ self-test not | | | | in progress | | | 1 | | | | | Remote digital loopback w/ self-test in | | | | progress | |---------+-------+------------------------------------------| | 6 | 0 | Local analog loopback w/ self-test not | | | | in progress | | | 1 | | | | | Local analog loopback w/ self-test in | | | | progress | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis COMPRESSION CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] "Hn [cmds] | |--------------+---------------------------------------------| | 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.42 DETECTION PHASE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Jn [cmds] | |--------------+---------------------------------------------| | Description: | Controls V.42 detection | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | -J0 | V.42 detection disabled | |--------------+---------------------------------------------| |>> -J1 | V.42 detection enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis MAXIMUM STRING LENGTH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] "O=n [cmds] | |--------------+---------------------------------------------| | Default: | 16 | |--------------+---------------------------------------------| | Range: | 6-250 | |--------------+---------------------------------------------| | Unit: | 1 ASCII character | |--------------+---------------------------------------------| | Description: | Selects string size for V.42bis compression | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Xn [cmds] | |--------------+---------------------------------------------| | 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 | +------------------------------------------------------------+