SUPRA DIAMOND ============= SUPRAEXPRESS 288 PNP 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 Data Modulation Bell 103/212A Protocol ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation ITU-T V.17, V.27ter, V.29 Protocol Error MNP5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | Line out/in - Unidentified | CN1 | DC power | CN4 | |-----------------------------+---------+--------------+-----| | Line in/out - Unidentified | CN2 | Power switch | SW1 | |-----------------------------+---------+--------------+-----| | RS-232/422 | CN3 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |------+-------+--------+------------------------------------| | 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 | |------+-------+--------+------------------------------------| | PWR | Red | On | Power is on | |------+-------+--------+------------------------------------| | PWR | Red | Off | Power is off | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ACCEPT MNP RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \U [cmds] | |--------------+---------------------------------------------| | Description: | Accept remote modem's request for MNP | | | reliable mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-FALLBACK/FALL-FORWARD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Gn [cmds] | |--------------+---------------------------------------------| | Description: | Selects auto-fallback/fall-forward | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %G0 | Auto-fallback/fall-forward disabled | |--------------+---------------------------------------------| | i %G1 | Auto-fallback/fall-forward enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Description: | Controls auto-retrain mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i %E0 | Auto-retrain disabled | |--------------+---------------------------------------------| | %E1 | Auto-retrain enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUXCTL OUTPUT LINE CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Mn [cmds] | |--------------+---------------------------------------------| | Description: | Controls AUXCTL output line level | |------------------------------------------------------------| | Note: Function varies by model | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | i %M0 | Line high only while modem in synchronous | | | data mode | |---------------+--------------------------------------------| | %M1 | Line low only while modem in synchronous | | | data mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format: | AT [cmds] S14=n [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-174 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls echo, result codes and display, | | | dial mode, and answer/originate mode. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Not used | |------+-------+---------------------------------------------| | 1 | 0 | Command echo disabled | | | | | | | i 1 | Command echo enabled | |------+-------+---------------------------------------------| | 2 | i 0 | Result codes enabled | | | | | | | 1 | Result codes disabled | |------+-------+---------------------------------------------| | 3 | 0 | Display result codes in numeric format | | | | | | | i 1 | Display result codes in verbose format | |------+-------+---------------------------------------------| | 4 | i 0 | Not used | |------+-------+---------------------------------------------| | 5 | i 0 | Tone dial enabled | | | | | | | 1 | Pulse dial enabled | |------+-------+---------------------------------------------| | 6 | i 0 | Not used | |------+-------+---------------------------------------------| | 7 | 0 | Answer mode enabled | | | | | | | 1 | Originate mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S21 | |------------------------------------------------------------| | Format | AT [cmds] S21=n [cmds] | |--------------+---------------------------------------------| | Default: | 4 | |--------------+---------------------------------------------| | 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 | i 0 | Selects RJ-11, RJ-41S, or RJ45S jack | | | | | | | 1 | Selects RJ-12 or RJ-13 jack | |------+-------+---------------------------------------------| | 1 | i 0 | Not used | |------+-------+---------------------------------------------| | 2 | 0 | CTS forced high | | | | | | | i 1 | CTS follows RTS | |------+-------+---------------------------------------------| | 4, 3 | i 00 | Modem does not respond to DTR | | | | | | | 01 | Modem hangs-up and sends "OK" result code | | | | | | | 10 | Modem goes to command mode after DTR goes | | | | is off | | | 11 | | | | | Modem goes to command mode and disconnects | | | | (hangs up) after DTR goes off; Auto-Answer | | | | is disabled. | |------+-------+---------------------------------------------| | 5 | i 0 | DCD forced high | | | | | | | 1 | DCD normal | |------+-------+---------------------------------------------| | 6 | i 0 | DSR forced high | | | | | | | 1 | DSR normal | |------+-------+---------------------------------------------| | 7 | i 0 | Long space disconnect function disabled | | | | | | | 1 | Long space disconnect function enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22=n [cmds] | |--------------+---------------------------------------------| | Default: | 118 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls speaker volume and controls, and | | | limits results codes. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 1, 0 | 00 | Low level volume | | | | | | | 01 | Low level volume | | | | | | | i 10 | Medium level volume | | | | | | | 11 | High level volume | |------+-------+---------------------------------------------| | 3, 2 | 00 | Speaker off | | | | | | | i 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 | | | | | | | i 111 | All result codes except dialtone detection | | | | enabled | | | | | | | | All result codes enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23=n [cmds] | |--------------+---------------------------------------------| | Default: | 55 | |--------------+---------------------------------------------| | 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 | | | | | | | i 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 | | | | | | | i 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 | |------+-------+---------------------------------------------| | 5, 4 | 00 | Parity even | | | | | | | 01 | Not Used | | | | | | | 10 | Parity odd | | | | | | | i 11 | No Parity | |------+-------+---------------------------------------------| | 7, 6 | i 00 | Guard tone disabled | | | | | | | 01 | Guard tone 550Hz enabled | | | | | | | 10 | Guard tone 1800Hz enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |--------------+---------------------------------------------| | Default: | 73 | |--------------+---------------------------------------------| | Range: | 0-11 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects synchronous/asynchronous mode, line | | | type, clock source, and ITU-T/Bell modes. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 3, | 000 | Asynchronous Direct mode | | 1, 0 | | | | | 001 | Asynchronous off-line command mode and | | | | synchronous connect mode | | | 010 | | | | | Asynchronous off-line command mode - modem | | | 011 | autodials first number in directory, then | | | | synchronous connect mode. | | | 100 | | | | | Asynchronous off-line command mode on low | | | i 101 | DTR, synchronous connect mode on high DTR. | | | | | | | 110 | Not Used | | | | | | | | Asynchronous Reliable Mode | | | | | | | | Asynchronous Normal Mode | |------+-------+---------------------------------------------| | 2 | i 0 | Switched line (PSTN/Dial-up) | | | | | | | 1 | Leased line | |------+-------+---------------------------------------------| | 5, 4 | i 00 | Modem generates clock | | | | | | | 01 | DTE generates clock | | | | | | | 10 | Modem generates clock from the receive | | | | carrier signal | |------+-------+---------------------------------------------| | 6 | 0 | ITU/T mode | | | | | | | i 1 | Bell mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S28 | |------------------------------------------------------------| | Format | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-31 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls V.23 split speed, transmit/receive | | | speed, half duplex; and pulse dialing. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | V.23 split speed operation disabled | | | | | | | 1 | V.23 split speed operation enabled | |------+-------+---------------------------------------------| | 1 | 0 | 75bps transmit, 1200bps receive enabled | | | | | | | 1 | 1200bps transmit, 75bps receive enabled | |------+-------+---------------------------------------------| | 2 | 0 | V.23 half-duplex disabled | | | | | | | 1 | 1200bps transmit, 1200bps receive enabled | |------+-------+---------------------------------------------| | 4, 3 | i 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: | 2 | |-----------------+------------------------------------------| | Range: | 0-10 | |-----------------+------------------------------------------| | Description: | Select automode and extended result code | | | format. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 0 | i 0 | Not used | |-----------+-------+----------------------------------------| | 1 | 0 | Auto-mode disabled | | | | | | | i 1 | Auto-mode ensabled | |-----------+-------+----------------------------------------| | 3, 2 | i 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S40 | |------------------------------------------------------------| | Format | AT [cmds] S40=n [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-239 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls power level and break handling; | | | selects MNP extended services, link | | | negotiation, and block size. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | V.42 LAPM to MNP 10 connection disabled | | | | | | | 1 | V.42 LAPM to MNP 10 connection enabled | |------+-------+---------------------------------------------| | 1 | 0 | Power level adjustment disabled | | | | | | | i 1 | Power level adjustment enabled | |------+-------+---------------------------------------------| | 2 | i 0 | Link will be negotiated at highest possible | | | | speed | | | 1 | | | | | Link will be negotiated at 1200bps | |------+-------+---------------------------------------------| | 5, | 000 | \K0 | | 4, 3 | | | | | 001 | \K1 | | | | | | | 010 | \K2 | | | | | | | 011 | \K3 | | | | | | | 100 | \K4 | | | | | | | i 101 | \K5 | |------+-------+---------------------------------------------| | 7, 6 | 00 | MNP block size is 64 characters | | | | | | | 01 | MNP block size is 128 characters | | | | | | | i 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: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-31 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects compression, auto-retrain, flow | | | control, and MNP mode. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 1 - | 00 | Data compression disabled | | 0 | | | | | 01 | MNP5 enabled | | | | | | | 10 | V.42bis enabled | | | | | | | 11 | MNP5 and V.42bis enabled | |------+-------+---------------------------------------------| | 2 | i 0 | Auto-retrain disabled | | | | | | | 1 | Auto-retrain enabled | |------+-------+---------------------------------------------| | 3 | i 0 | Flow control disabled | | | | | | | 1 | Flow control enabled | |------+-------+---------------------------------------------| | 4 | i 0 | Stream mode for MNP | | | | | | | 1 | Block mode for MNP | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 1-9 | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sends break to modem in non-error | | | correction state | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | | | |-----------+--------------+----------------+----------------| | i \K5 | Send break | Send break | Break sent | | | with | with | with received | | | transmitted | transmitted | data to the | | | data | data | DTE | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUSY DETECT WATERMARK | |------------------------------------------------------------| | Type: | Register | |--------------------+---------------------------------------| | Format: | AT [cmds] SCn=x [cmds] | |--------------------+---------------------------------------| | Description: | Sets the way the modem accepts a busy | | | signal by FCC specifications | |------------------------------------------------------------| | Command | Value | Function | |------------+-------------+---------------------------------| | SC0=x | 30 | Minimum BUSY ON Time | |------------------------------------------------------------| | SC1=x | 0 | Minimum BUSY ON Time | |-----------------+-------------+----------------------------| | SC2=x | 75 | Maximum BUSY ON Time | |-----------------+-------------+----------------------------| | SC3=x | 0 | Maximum BUSY ON Time | |-----------------+-------------+----------------------------| | SC4=x | 30 | Minimum BUSY OFF Time | |-----------------+-------------+----------------------------| | SC5=x | 0 | Minimum BUSY OFF Time | |-----------------+-------------+----------------------------| | SC6=x | 75 | Maximum BUSY OFF Time | |-----------------+-------------+----------------------------| | SC7=x | 0 | Maximum BUSY OFF Time | |------------------------------------------------------------| | Note: Each register "pair" holds the value for each | | setting. To set a value, divide the setting by 256. | | The integer goes in the second register, while the | | remained goes in the first. (A setting of 516 would | | convert to 2 Remainder 4, and could be set by sending | | ATSC0=4SC1=2 to the modem.) Settings are in 1/100ths | | of a second. Setting SC0=25 & SC4=25 allows FAST BUSY | | to also be detected as BUSY. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUSY PULSES | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] SC8=n [cmds] | |--------------+---------------------------------------------| | Default: | 4 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | 1 pulse | |--------------+---------------------------------------------| | Description: | Set number of valid BUSY Pulses before | | | reporting BUSY | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLER ID | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #CID=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls the Caller ID function | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #CID? | Displays current Caller ID mode | |--------------+---------------------------------------------| | #CID=? | Returns Caller ID modes supported | |--------------+---------------------------------------------| | #CID=0 | Caller ID disabled | |--------------+---------------------------------------------| | #CID=1 | Caller ID displays formatted data | |--------------+---------------------------------------------| | #CID=2 | Caller ID displays raw hexadecimal data | +------------------------------------------------------------+ +------------------------------------------------------------+ | CARRIER CONTROL SELECTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] C1 [cmds] | |--------------+---------------------------------------------| | Description: | Provided for backward compatibility only. | | | Does nothing but return "OK" | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMUNICATIONS MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Mn [cmds] | |--------------+---------------------------------------------| | Description: | Selects communications mode | |------------------------------------------------------------| | Note: Same function as &Q(0-3) settings. | |------------------------------------------------------------| | Command | Mode | |--------------+---------------------------------------------| | i &M0 | Asynchronous Direct mode | |--------------+---------------------------------------------| | &M1 | Asynchronous off-line command mode and | | | synchronous connect mode. | |--------------+---------------------------------------------| | &M2 | Asynchronous off-line command mode - modem | | | autodials first number in directory, then | | | synchronous connect mode. | |--------------+---------------------------------------------| | &M3 | Asynchronous off-line command mode on low | | | DTR, synchronous connect mode on high DTR. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMUNICATIONS MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Qn [cmds] | |--------------+---------------------------------------------| | Description: | Selects communications mode options | |--------------+---------------------------------------------| | Command | Mode | |--------------+---------------------------------------------| | i &Q0 | Asynchronous Direct mode | |--------------+---------------------------------------------| | &Q1 | Asynchronous off-line command mode and | | | synchronous connect mode. | |--------------+---------------------------------------------| | &Q2 | Asynchronous off-line command mode - modem | | | autodials first number in directory, then | | | synchronous connect mode. | |--------------+---------------------------------------------| | &Q3 | Asynchronous off-line command mode on low | | | DTR, synchronous connect mode on high DTR. | |--------------+---------------------------------------------| | &Q4 | Not Used | |--------------+---------------------------------------------| | i &Q5 | Asynchronous Reliable Mode | |--------------+---------------------------------------------| | &Q6 | Asynchronous Normal Mode | |--------------+---------------------------------------------| | &Q7 | Not used | |--------------+---------------------------------------------| | &Q8 | Asynchronous Reliable Mode w/o v.42/v.42bis | |--------------+---------------------------------------------| | &Q9 | Asynchronous Reliable Mode w/o MNP 2-5 | |------------------------------------------------------------| | Note: Be VERY careful when issuing these commands! | | Once you enter &Q(1-3) and save it to memory, | | | | there are only two known ways to return to | | Asynchronous Mode: | | | | 1. Issue AT &Q(0,5-9) &W from a Synchronous Terminal | | to restore the modem to Asynchronous Mode. | | | | 2. Connect modem to an Asynchronous Terminal with the | | DTR signal (line 20) disabled (a "break-out" box | | works very nicely for this) and issue the | | configuration you want or AT &Q(0,5-9) &W to return | | the modem to Asynchronous Mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMUNICATION PROTOCOLS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Bn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the communication protocol for data | | | calls | |------------------------------------------------------------| | Note: The B command allows the simultaneous selection | | of more than one suffix, enabling multiple protocols. | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | B0 | V.21 (1200bps) and/or V.22 (1200 bps) | |----------------+-------------------------------------------| | B1 | Bell 103 (300 bps)Band/or Bell 212A (1200 | | | bps) | |----------------+-------------------------------------------| | B15 | V.21 (300 bps) only | |----------------+-------------------------------------------| | B16 | Bell 103 (300 bps) only | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | %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 | MNP reliable mode enabled | |--------------+---------------------------------------------| | i \N3 | Auto-reliable mode enabled | |------------------------------------------------------------| | Note: To force LAPM only connections use AT\N3S36=0 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONVERT TO MNP RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Y [cmds] | |--------------+---------------------------------------------| | Description: | Converts to MNP reliable mode from normal | | | or direct mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA TERMINAL READY (DTR) | |------------------------------------------------------------| | Type: | Configuration | |---------------+--------------------------------------------| | Format: | AT [cmds] &Dn [cmds] | |---------------+--------------------------------------------| | Description: | Selects modem response to DTR | |------------------------------------------------------------| | Note: The action each variant of &D causes depends on | | the setting of &Q | |------------------------------------------------------------| | &Q Setting | &D0 | &D1 | &D2 | &D3 | |-----------------+------------+---------+---------+---------| | &Q0, &Q5, &Q6, | NONE | Command | Command | Command | | &Q8, &Q9 | | 2 | 3 | 4 | |-----------------+------------+---------+---------+---------| | &Q1 | Command 0 | Command | Command | Command | | | | 2 | 3 | 4 | |-----------------+------------+---------+---------+---------| | &Q2 | Command 3 | Command | Command | Command | | | | 3 | 3 | 3 | |-----------------+------------+---------+---------+---------| | &Q3 | Command 3 | Command | Command | Command | | | | 3 | 3 | 3 | |-----------------+------------+---------+---------+---------| | &Q4 | Command 1 | Command | Command | Command | | | | 2 | 3 | 4 | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | Command 0 | Modem does not respond to DTR | |---------------+--------------------------------------------| | Command 1 | Modem hangs-up and sends "OK" result code | |---------------+--------------------------------------------| | Command 2 | Modem goes to command mode after DTR goes | | | is off | |---------------+--------------------------------------------| | Command 3 | Modem goes to command mode and disconnects | | | (hangs up) after DTR goes off; Auto-Answer | | | is disabled. | |---------------+--------------------------------------------| | Command 4 | Modem is initialized after DTR goes off | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#> [cmds] | |--------------+---------------------------------------------| | Description: | Dials telephone number according to any | | | modifiers included in the string | |------------------------------------------------------------| | Note: Any combination of modifiers can be used to | | produce the desired dial functions in sequence. | |------------------------------------------------------------| | Command | Function | |-----------+------------------------------------------------| | - ( ) i | These symbols and spaces are ignored | |-----------+------------------------------------------------| | J | Do MNP 10 link negotiation at highest rate | | | (this call only, see *H) | |-----------+------------------------------------------------| | K | Enable power level adj. during MNP 10 link | | | neg. (this call only, see Mn) | |-----------+------------------------------------------------| | L | Dial the last dialing string (limitted to the | | | first 40 characters). | |-----------+------------------------------------------------| | P | Pulse dial the following digits | |-----------+------------------------------------------------| | R | Dial with answer rather than originate | | | carrier. | | | | | | (Some models accept, but do not support, this | | | command.) | | | | | | Normal Mode: Calling Side: ATDTn Answering | | | Side: ATA | | | | | | Reverse Mode: Calling Side: ATDTnR Answering | | | Side: ATXD | |-----------+------------------------------------------------| | Sn | Dial stored in non-volitile memory location n. | | | n=0-3 | |-----------+------------------------------------------------| | T | Tone dial enabled | |-----------+------------------------------------------------| | W | Wait for second dialtone | |-----------+------------------------------------------------| | * | DTMF code for "star" | |-----------+------------------------------------------------| | # | DTMF code for "gate" | |-----------+------------------------------------------------| | @ | Wait for quiet answer, a 5 second silence. | |-----------+------------------------------------------------| | , | Pause before finishing dial string, time set | | | in S8. | |-----------+------------------------------------------------| | ! | Hook flash, go on-hook for time set in S29. | |-----------+------------------------------------------------| | ^ | Enabled 1300Hz call originating pulse | |-----------+------------------------------------------------| | ; | Return to command state after dialing | |-----------+------------------------------------------------| | > | Generate a grounding pulse on the EARTH relay | | | output. If country code setting supports it. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY STORED NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \F [cmds] | |--------------+---------------------------------------------| | Description: | Display telephone directory stored in | | | non-volatile memory | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR CHANGE THRESHOLD | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S25=n [cmds] | |--------------+---------------------------------------------| | Default: | 5 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | .01 second | |--------------+---------------------------------------------| | Description: | Sets maximum time a change in the DTR | | | signal will be ignored | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO DATA | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \En [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to echo received data | |------------------------------------------------------------| | Note: Accepted, but not functional on some models | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \E1 | One shot that minimizes local echo to try | | | to match local network | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHOPLEX VALIDITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Fn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether commands sent while in data | | | mode are echoed | |------------------------------------------------------------| | Note: This command is only supported on older modems. | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | F0 | Not Supported (Returns "ERROR") | |--------------+---------------------------------------------| | i F1 | Provided for backward compatibility only. | | | (Returns "OK") | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY DEFAULT PROFILE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &F [cmds] | |--------------+---------------------------------------------| | Description: | Sets values in active profile to values | | | found in the default profile | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | &F0 | No flow control, No error correction, No | | | data compression | |---------------+--------------------------------------------| | &F1 | MAC hardware flow control, correction & | | | compression active | |---------------+--------------------------------------------| | &F2 | Hardware flow control, correction & | | | compression active | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLASH DIAL MODIFIER TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S29=n [cmds] | |--------------+---------------------------------------------| | Default: | 7 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | .1 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 for Normal | | | and Direct modes | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \G0 | Flow control disabled | |--------------+---------------------------------------------| | \G1 | Flow control enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-42 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. \T=0 will disable timer | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | |------------------------------------------------------------| | Note: S30=0 disables the timer and allows indefinite | | inactivity. In Reliable mode any data transfer resets | | timer. In Normal mode only sent data resets timer. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INITIATE MNP RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \O [cmds] | |--------------+---------------------------------------------| | Description: | Initiates MNP reliable mode from normal or | | | direct mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SELECT MODULATION | |------------------------------------------------------------| | Type: | Configuration | |---------------+--------------------------------------------| | Format: | AT [cmds] Fn [cmds] | |---------------+--------------------------------------------| | Description: | Selects the speed/protocol the modem will | | | operate in | |------------------------------------------------------------| | Note: Use either ATFn or a combination of ATS37=n and | | ATN0, but DO NOT try to USE BOTH at the same time. | |------------------------------------------------------------| | Command | Function | |------------------+-----------------------------------------| | F0 | AutoMode Selection (try rates in order | | | from fast to slow). | |------------------+-----------------------------------------| | F1 | 300 bps only (protocol according to Bn | | | setting) | |------------------+-----------------------------------------| | F2 | Not Used (return "OK") | |------------------+-----------------------------------------| | F3 | v.23 only 75TX/1200RX (originate) or | | | 1200TX/75RX (answer) | |------------------+-----------------------------------------| | F4 | 1200 bps only (protocol according to Bn | | | setting) | |------------------+-----------------------------------------| | F5 | 2400 bps only (v.22bis) | |------------------+-----------------------------------------| | F6 | 4800 bps only (v.32/v.32bis) | |------------------+-----------------------------------------| | F7 | 7200 bps only (v.32bis) | |------------------+-----------------------------------------| | F8 | 9600 bps only (v.32/v.32bis) | |------------------+-----------------------------------------| | F9 | 12000 bps only (v.32bis) | |------------------+-----------------------------------------| | F10 | 14400 bps only (v.32bis) | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SIGNAL LEVEL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format | AT [cmds] %L [cmds] | |--------------+---------------------------------------------| | Default: | Unidnetified | |--------------+---------------------------------------------| | Range: | 9-43 | |--------------+---------------------------------------------| | Unit: | -dBm | |--------------+---------------------------------------------| | Description: | Returns a value which indicates the | | | received line signal level | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SIGNAL QUALITY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format | AT [cmds] %Q [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | Unidentified | |--------------+---------------------------------------------| | Description: | Returns a value which indicates line signal | | | quality | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | i \A2 | MNP block size is 192 characters | |--------------+---------------------------------------------| | \A3 | MNP block size is 256 characters | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP - EXTENDED SERVICES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Kn [cmds] | |--------------+---------------------------------------------| | Description: | Selects MNP extended services (MNP10) | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | -K0 | V.42 LAPM to MNP 10 connection disabled | |--------------+---------------------------------------------| | -K1 | V.42 LAPM to MNP 10 connection enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP - STREAM/BLOCK MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Ln [cmds] | |--------------+---------------------------------------------| | Description: | Selects the transfer mode for MNP link | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \L0 | Stream mode for MNP enabled | |--------------+---------------------------------------------| | \L1 | Block mode for MNP enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 - FALLBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Qn [cmds] | |--------------+---------------------------------------------| | Description: | Allows MNP10 to fall back to speeds slower | | | than 4800bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 - LINK NEGOTIATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *Hn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the speed at which MNP10 link | | | negotiation will occur | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i *H0 | Link will be negotiated at highest possible | | | speed | |--------------+---------------------------------------------| | *H1 | Link will be negotiated at 1200bps | |--------------+---------------------------------------------| | *H2 | Link will be negotiated at 4800bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 - POWER LEVEL ADJUST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] )Mn [cmds] | |--------------+---------------------------------------------| | Description: | Controls automatic transmit power level | | | adjustment during MNP 10 link negotiation | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i )M0 | Power level adjustment disabled | |--------------+---------------------------------------------| | )M1 | Power level adjustment enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Description: | Displays requested information | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | I0 | SupraFAXModem product ID code | |---------------+--------------------------------------------| | I1 | ROM checksum | |---------------+--------------------------------------------| | I2 | Test Checksum (OK if correct, ERROR if | | | not) | |---------------+--------------------------------------------| | I3 | ROM revision code | |---------------+--------------------------------------------| | I4 | Encrypted report of supported protocols | |---------------+--------------------------------------------| | I5 | Supra Copyright information | |---------------+--------------------------------------------| | I10 | Supported Features | |---------------+--------------------------------------------| | I99 | Electronic Serial Number | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Q0 | Result code sending enabled | |--------------+---------------------------------------------| | Q1 | Result code sending disabled | |--------------+---------------------------------------------| | Q2 | Enable result code sending when | | | Originating, disable when answering | +------------------------------------------------------------+ +------------------------------------------------------------+ | RTS TO CTS DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S26=n [cmds] | |--------------+---------------------------------------------| | Default: | 1 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | .01 second | |--------------+---------------------------------------------| | Description: | Sets the duration of delay for CTS to | | | respond to RTS status change (sync mode | | | only) | +------------------------------------------------------------+ +------------------------------------------------------------+ | SELECT CALL PROGRESS RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Xn [cmds] | |--------------+---------------------------------------------| | Description: | Enables selection of tone detection and | | | associated result code format options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | X0 | Basic result codes only enabled | |--------------+---------------------------------------------| | X1 | Basic and connection speed result codes | | | enabled | |--------------+---------------------------------------------| | X2 | Basic and connection speed result codes and | | | dialtone detection enabled | |--------------+---------------------------------------------| | X3 | All result codes except dialtone detection | | | enabled | |--------------+---------------------------------------------| | i X4 | All result codes enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | SLEEP TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S24=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Maximum duration of DTE and DCE inactivity | | | allowed prior to initiating low-power sleep | | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STATUS-REGISTER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] (see below) [cmds] | |--------------+---------------------------------------------| | Description: | Gives options to read or write to a | | | specified register | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | =n | Write value n to the last S register | | | viewed | |---------------+--------------------------------------------| | ? | Displays current setting for the last S | | | register accessed | |---------------+--------------------------------------------| | Sr? | Reports value in S register r | |---------------+--------------------------------------------| | SCr? | Reports value is SC register r | |---------------+--------------------------------------------| | Sr=n | Write value n into S register r | |---------------+--------------------------------------------| | SCr=n | Write value n into SC register r | +------------------------------------------------------------+ +------------------------------------------------------------+ | SWITCH TO NORMAL MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Z [cmds] | |--------------+---------------------------------------------| | Description: | Switches to normal mode from MNP mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | i 0 | Local analog loopback not in progress | | | | | | | 1 | Local analog loopback in progress | |------+-------+---------------------------------------------| | 1 | i 0 | Not used | |------+-------+---------------------------------------------| | 2 | i 0 | Local digital loopback not in progress | | | | | | | 1 | Local digital loopback in progress | |------+-------+---------------------------------------------| | 3 | i 0 | Modem not in remote digital loopback | | | | | | | 1 | Remote digital loopback in progress | |------+-------+---------------------------------------------| | 4 | i 0 | Remote digital loopback not requested | | | | | | | 1 | Remote digital loopback requested | |------+-------+---------------------------------------------| | 5 | i 0 | Remote digital loopback w/ self-test not in | | | | progress | | | 1 | | | | | Remote digital loopback w/ self-test in | | | | progress | |------+-------+---------------------------------------------| | 6 | i 0 | Local analog loopback w/ self-test not in | | | | progress | | | 1 | | | | | Local analog loopback w/ self-test in | | | | progress | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMISSION LEVEL - CELLULAR | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] @Mn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-1 | |--------------+---------------------------------------------| | Unit: | Unidentified | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission | | | while in cellular mode (MNP10) | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.23 MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Fn [cmds] | |--------------+---------------------------------------------| | Description: | Selects V.23 split-speed and half-duplex | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | %F1 | 75bps transmit, 1200bps receive | | | (split-speed) | |-----------------+------------------------------------------| | %F2 | 1200bps transmit, 75bps receive | | | (split-speed) | |-----------------+------------------------------------------| | %F3 | 1200bps transmit, 1200bps receive | | | (half-duplex) | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.23 - SPLIT-SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Wn [cmds] | |--------------+---------------------------------------------| | Description: | Controls V.23 split-speed mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i \W0 | V.23 split-speed mode disabled | |--------------+---------------------------------------------| | \W1 | V.23 split-speed mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis - CLEAR DICTIONARY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %P [cmds] | |--------------+---------------------------------------------| | Description: | Clears both modems' V.42bis dictionaries | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis - COMPRESSION CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Mn [cmds] | |--------------+---------------------------------------------| | Description: | Controls V.42bis data compression | |------------------------------------------------------------| | Note: Function varies by model | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %M0 | V.42bis disabled | |--------------+---------------------------------------------| | %M1 | V.42bis when transmitting enabled | |--------------+---------------------------------------------| | %M2 | V.42bis when receiving enabled | |--------------+---------------------------------------------| | i %M3 | V.42bis when transmitting/receiving enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis - DICTIONARY SIZE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Dn [cmds] | |--------------+---------------------------------------------| | Description: | Select V.42 dictionary size | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %D0 | Select 512 bytes | |--------------+---------------------------------------------| | %D1 | Select 1024 bytes | |--------------+---------------------------------------------| | i %D2 | Select 2048 bytes | |--------------+---------------------------------------------| | %D3 | Select 4096 bytes on one-way compression; | | | 2048 bytes on two-way compression | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis - MAXIMUM STRING LENGTH | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %Sn [cmds] | |--------------+---------------------------------------------| | Default: | 32 | |--------------+---------------------------------------------| | Range: | 6-250 | |--------------+---------------------------------------------| | Unit: | Characters | |--------------+---------------------------------------------| | Description: | Selects string size for V.42bis compression | +------------------------------------------------------------+