MOTOROLA, INC. ============== V.3400 Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Class I Data Modulation Bell 103A/212A Protocol ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.33, V.34 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 | |--------------------+----------+-----------------+----------| | YES button | BT1 | Leased line out | CN2 | |--------------------+----------+-----------------+----------| | NO button | BT2 | RS-232/422 | CN3 | |--------------------+----------+-----------------+----------| | TALK/DATA button | BT3 | Fuse | FUSE | |--------------------+----------+-----------------+----------| | Switched line out | CN1 | Power switch | SW1 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |-------+---------+---------+--------------------------------| | TR | Red | On | DTR signal is high | |-------+---------+---------+--------------------------------| | TR | Red | Off | DTR signal is low | |-------+---------+---------+--------------------------------| | CS | Red | On | CTS signal is high | |-------+---------+---------+--------------------------------| | CS | Red | Off | CTS signal is low | |-------+---------+---------+--------------------------------| | RS | Red | On | RTS signal is high | |-------+---------+---------+--------------------------------| | RS | Red | Off | RTS signal is low | |-------+---------+---------+--------------------------------| | CD | Red | On | Carrier signal detected | |-------+---------+---------+--------------------------------| | CD | Red | Off | Carrier signal not detected | |-------+---------+---------+--------------------------------| | RD | Red | On | Modem is receiving data | |-------+---------+---------+--------------------------------| | RD | Red | Off | Modem is not receiving data | |-------+---------+---------+--------------------------------| | TD | Red | On | Modem is transmitting data | |-------+---------+---------+--------------------------------| | TD | Red | Off | Modem is not transmitting data | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ANSWER/ORIGINATE MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ORn [cmds] | |--------------+---------------------------------------------| | Example: | AT *OR0 | |--------------+---------------------------------------------| | Description: | Selects whether the modem is in answer or | | | originate mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *OR0 | Modem is in originate mode. | |--------------+---------------------------------------------| | *OR1 | Modem is in answer mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-ANSWER OVERRIDE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *IC [cmds] | |--------------+---------------------------------------------| | Example: | AT *IC | |--------------+---------------------------------------------| | Description: | Instructs the modem to ignore the incoming | | | call, if the modem is set to automatically | | | answer. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTODIALING STORED NUMBER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *AUn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AU4 *CN4,1(303)443-3388 | |--------------+---------------------------------------------| | Description: | Sets the autodialing function to dial the | | | number stored in memory location n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] %An [cmds] | |--------------+---------------------------------------------| | Example: | AT%A20 | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character. %A0 will | | | disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S64=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS64=20 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character. S64=0 | | | will disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE TIME BUFFER CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |--------------+---------------------------------------------| | Example: | AT \C1 &W | |--------------+---------------------------------------------| | Description: | Controls the handling of incoming data | | | during auto-reliable time period. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \C0 | Data is discarded. | |--------------+---------------------------------------------| | \C1 | Data is buffered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT %En | |--------------+---------------------------------------------| | Example: | AT %E1 *MM12 | |--------------+---------------------------------------------| | Description: | Selects auto-retrain mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %E0 | Auto-retrain disabled. | |--------------+---------------------------------------------| |>> %E1 | Auto-retrain enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format | AT [cmds] S14=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS14=40 | |---------------+--------------------------------------------| | Default: | 138 | |---------------+--------------------------------------------| | Range: | 0 - 190 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Controls command echo, result codes, | | | dialing mode, and answer/originate mode. | |------------------------------------------------------------| | Bit | Value | Function | |---------+---------+----------------------------------------| | 0 | 0 | Not used. | |---------+---------+----------------------------------------| | 1 | 0 >> 1 | Command echo off. | | | | | | | | Command echo on. | |---------+---------+----------------------------------------| | 2 |>> 0 1 | Result codes enabled. | | | | | | | | Result codes disabled. | |---------+---------+----------------------------------------| | 3 | 0 >> 1 | Numeric result codes. | | | | | | | | Verbose result codes. | |---------+---------+----------------------------------------| | 4 |>> 1 | Not used. | |---------+---------+----------------------------------------| | 5 |>> 0 1 | Tone dialing selected. | | | | | | | | Pulse dialing selected. | |---------+---------+----------------------------------------| | 6 | 0 | Not used. | |---------+---------+----------------------------------------| | 7 | 0 >> 1 | Answer mode selected. | | | | | | | | Originate mode selected. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S21 | |------------------------------------------------------------| | Format | AT [cmds] S21=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS21=1 | |----------------+-------------------------------------------| | Default: | 132 | |----------------+-------------------------------------------| | Range: | 0 - 255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls low DTR action, DCD signal, and | | | the Long Space Disconnect function. | |----------------+-------------------------------------------| | Note: | Be aware that the bits are out of order. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 6, 0 |>> 00 | DSR forced high. | | | 01 10 | | | | 11 | DSR normal, except forced low on | | | | disconnect. | | | | | | | | DSR normal. | | | | | | | | DSR follows OH. | |----------+-------+-----------------------------------------| | 5, 1 |>> 00 | CD forced high. | | | 01 10 | | | | 11 | CD forced high except during | | | | disconnect. | | | | | | | | CD normal. | | | | | | | | CD follows remote RTS signal. | |----------+-------+-----------------------------------------| | 2 | 0 >> 1 | CTS normal. | | | | | | | | CTS forced high. | |----------+-------+-----------------------------------------| | 4, 3 |>> 00 | DTR signal ignored. | | | 01 10 | | | | 11 | Modem goes to command mode on low DTR. | | | | | | | | Modem disconnects on low DTR. | | | | | | | | Modem resets on low DTR. | |----------+-------+-----------------------------------------| | 7 | 0 >> 1 | Long Space Disconnect function | | | | disabled. | | | | | | | | Long Space Disconnect function enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS22=114 | |----------------+-------------------------------------------| | Default: | 70 | |----------------+-------------------------------------------| | Range: | 0 - 255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls volume and speaker settings, | | | result codes, and make/break pulse ratio. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+--------+---------------------------------------| | 1, 0 | 00 01 | Lowest volume setting. | | |>> 10 | | | | 11 | Low volume setting. | | | | | | | | Medium volume setting | | | | | | | | Highest volume setting. | |-----------+--------+---------------------------------------| | 3, 2 | 00 >> | Speaker disabled. | | | 01 10 | | | | 11 | Speaker enabled until carrier signal | | | | detected | | | | | | | | Speaker enabled. | | | | | | | | Speaker enabled following dialing, | | | | then disabled after carrier signal | | | | detected. | |-----------+--------+---------------------------------------| | 6, 5 ,4 | 000 | Busy and dialtone detection disabled, | | | 001 | result codes 0-4 enabled. | | | 010 | | | | 011 >> | Busy and dialtone detection disabled, | | | 100 | result codes 0-5, 10 enabled. | | | | | | | | Busy tone detection disabled, | | | | dialtone detection enabled, result | | | | codes 0-6, 10 enabled. | | | | | | | | Busy tone detection enabled, dialtone | | | | detection disabled, result codes 0-5, | | | | 7, 10 enabled. | | | | | | | | Busy and dialtone detection enabled, | | | | result codes 0-7, 10 enabled. | |-----------+--------+---------------------------------------| | 7 |>> 0 1 | Pulse dialing at 39/61ms at 10pps. | | | | | | | | Pulse dialing at 33/67ms at 10pps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS23=177 | |----------------+-------------------------------------------| | Default: | 1 | |----------------+-------------------------------------------| | Range: | 0 - 129 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Grants/denies remote digital loopback and | | | sets guard tone. | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | 0 >> 1 | Remote digital loopback denied. | | | | | | | | Remote digital loopback allowed. | |----------+--------+----------------------------------------| | 1 | 0 | Not used. | |----------+--------+----------------------------------------| | 2 | 0 | Not used. | |----------+--------+----------------------------------------| | 3 | 0 | Not used. | |----------+--------+----------------------------------------| | 4 | 0 | Not used. | |----------+--------+----------------------------------------| | 5 | 0 | Not used. | |----------+--------+----------------------------------------| | 7, 6 |>> 00 | Guard tone disabled. | | | 01 10 | | | | | Guard tone at 500Hz enabled. | | | | | | | | Guard tone at 1800Hz enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS27=9 | |----------------+-------------------------------------------| | Default: | 9 | |----------------+-------------------------------------------| | Range: | 0 - 127 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Selects sync/async mode, line type, clock | | | source, and ITU-T/Bell modes. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 1, 0 | 00 01 | Asynchronous command and data modes. | | |>> 10 | | | | 11 | Asynchronous command, synchronous | | | | connect mode. | | | | | | | | DTR dialing enabled, synchronous | | | | connect mode. | | | | | | | | Manual dialing only, synchronous | | | | connect mode. | |----------+-------+-----------------------------------------| | 2 |>> 0 1 | Switched line. | | | | | | | | Leased line. | |----------+-------+-----------------------------------------| | 3 | 0 | Not used. | |----------+-------+-----------------------------------------| | 5, 4 |>> 00 | Internal DTE transmit clock source. | | | 01 10 | | | | | External DTE transmit clock source. | | | | | | | | Slave DTE transmit clock source. | |----------+-------+-----------------------------------------| | 6 |>> 0 1 | DTR dialing enabled. | | | | | | | | DTR dialing disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S29 | |------------------------------------------------------------| | Format | AT [cmds] S29=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS29=4 | |----------------+-------------------------------------------| | Default: | 0 | |----------------+-------------------------------------------| | Range: | 0 - 135 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls command set, option retaining, | | | V.32 fast handshaking, and DTE fallback. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 |>> 0 1 | AT command set enabled. | | | | | | | | AT command set disabled. | |----------+-------+-----------------------------------------| | 1 |>> 0 1 | Modem will not reset on disconnect. | | | | | | | | Modem will reset on disconnect. | |----------+-------+-----------------------------------------| | 2 |>> 0 1 | Normal V.32 handshake sequence. | | | | | | | | Training time is shortened by 2 seconds | | | | in V.32 and V.32bis modes. | |----------+-------+-----------------------------------------| | 3 | 0 | Not used. | |----------+-------+-----------------------------------------| | 4 | 0 | Not used. | |----------+-------+-----------------------------------------| | 5 | 0 | Not used. | |----------+-------+-----------------------------------------| | 6 | 0 | Not used. | |----------+-------+-----------------------------------------| | 7 |>> 0 1 | DTR dialing enabled. | | | | | | | | DTR dialing disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S32 | |------------------------------------------------------------| | Format | AT [cmds] S32=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS32=14 | |----------------+-------------------------------------------| | Default: | 6 | |----------------+-------------------------------------------| | Range: | 0 - 15 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls line type, disconnect on loss of | | | current, and leased line backup mode. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 |>> 0 1 | 2-wire leased line. | | | | | | | | 4-wire leased line. | |----------+-------+-----------------------------------------| | 2, 1 | 00 01 | Do not disconnect on loss of current. | | |>> 11 | | | | | Disconnect after 8ms if current is | | | | lost. | | | | | | | | Disconnect after 90ms if current is | | | | lost. | |----------+-------+-----------------------------------------| | 3 |>> 0 1 | Modem will restore leased line | | | | connection only when modem receives *LB | | | | or *LD. | | | | | | | | Modem will restore leased line | | | | connection automatically. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S60 | |------------------------------------------------------------| | Format | AT [cmds] S60=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS60=4 | |----------------+-------------------------------------------| | Default: | 67 | |----------------+-------------------------------------------| | Range: | 0 - 199 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls auto-retrain, MNP, auto-reliable | | | time buffering, RI signal, and extended | | | result codes. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | 0 >> 1 | Auto-retrain disabled. | | | | | | | | Auto-retrain enabled. | |----------+-------+-----------------------------------------| | 1 | 0 >> 1 | MNP disabled. | | | | | | | | MNP enabled. | |----------+-------+-----------------------------------------| | 2 |>> 0 1 | Data is discarded during auto-relaible | | | | time. | | | | | | | | Data is buffered during auto-relaible | | | | time. | |----------+-------+-----------------------------------------| | 5 - 3 | 0 | Not used. | |----------+-------+-----------------------------------------| | 6 | 0 >> 1 | RI signal high during rings, and forced | | | | high for duration of call. | | | | | | | | RI signal high during rings only. | |----------+-------+-----------------------------------------| | 7 |>> 0 1 | Extended result codes disabled. | | | | | | | | Extended result codes enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S70 | |------------------------------------------------------------| | Format | AT [cmds] S70=n [cmds] | |-----------------+------------------------------------------| | Example: | ATS70=7 | |-----------------+------------------------------------------| | Default: | 15 | |-----------------+------------------------------------------| | Range: | 0 - 15 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls connect mode and V.42 | | | negotiation mode. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 2, 1, 0 | 000 | Normal mode enabled. | | | 001 | | | | 010 | Direct mode enabled. | | | 011 | | | | 100 | MNP mode only enabled. | | | 101 | | | | 110 >> | MNP mode with fallback to normal mode | | | 111 | enabled. | | | | | | | | LAP-M mode only enabled. | | | | | | | | LAP-M mode with fallback to normal | | | | mode enabled. | | | | | | | | LAP-M mode with fallback to MNP | | | | enabled. | | | | | | | | LAP-M mode with fallback to MNP and | | | | normal modes enabled. | |------------+-------+---------------------------------------| | 3 | 0 >> 1 | Normal V.42 handshaking enabled. | | | | | | | | Fast V.42 handshaking enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S72 | |------------------------------------------------------------| | Format | AT [cmds] S72=n [cmds] | |-----------------+------------------------------------------| | Example: | ATS72=7 | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0 - 137 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls serial port lock, CTS signal, | | | and autocallback function. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 0 |>> 0 1 | Serial speed locked. | | | | | | | | Serial speed follows connect speed. | |-----------+-------+----------------------------------------| | 2 - 1 | 0 | Not used. | |-----------+-------+----------------------------------------| | 3 |>> 0 1 | CTS normal. | | | | | | | | CTS follows CD. | |-----------+-------+----------------------------------------| | 6 - 4 | 0 | Not used. | |-----------+-------+----------------------------------------| | 7 |>> 0 1 | Autocallback disabled. | | | | | | | | Autocallback enabled. The modem, upon | | | | detecting an incoming call, will dial | | | | the default number and connect with it | | | | instead of the incoming call. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S84 | |------------------------------------------------------------| | Format | AT [cmds] S84=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS84=7 | |---------------+--------------------------------------------| | Default: | 0 | |---------------+--------------------------------------------| | Range: | 0 - 93 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Controls disconnect during handshaking, | | | V.22 fallback, answerback, dial backup | | | trigger, and frame tracking. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 |>> 0 1 | Disconnect if key is pressed during | | | | handshaking. | | | | | | | | Do not disconnect if key is pressed | | | | during handshaking. | |---------+-------+------------------------------------------| | 1 | 0 | Not used. | |---------+-------+------------------------------------------| | 2 |>> 0 1 | Normal fallback to V.22. | | | | | | | | Fast fallback to V.22. | |---------+-------+------------------------------------------| | 3 |>> 0 1 | Normal answerback. | | | | | | | | Fast answerback. | |---------+-------+------------------------------------------| | 4 |>> 0 1 | DTR signal must go from low to high four | | | | times for dial backup to occur. | | | | | | | | DTR signal must go from low to high once | | | | for dial backup to occur. | |---------+-------+------------------------------------------| | 5 | 0 | Not used. | |---------+-------+------------------------------------------| | 6 |>> 0 1 | Frame tracking disabled. | | | | | | | | Frame tracking enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT \B50 O | |--------------+---------------------------------------------| | Default: | 35 | |--------------+---------------------------------------------| | Range: | 1-255 | |--------------+---------------------------------------------| | Unit: | 20ms | |--------------+---------------------------------------------| | Description: | Sends break to modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S79=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS79=20 | |--------------+---------------------------------------------| | Default: | 35 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | 20 ms | |--------------+---------------------------------------------| | Description: | Sets the length of breaks sent from DCE to | | | DTE. | +------------------------------------------------------------+ +----------------------------------------------------------------+ | BREAK TYPE | |----------------------------------------------------------------| |Type: |Configuration | |------------------+---------------------------------------------| |Format: |AT [cmds] \Kn [cmds] | |------------------+---------------------------------------------| |Example: |AT \K1 | |------------------+---------------------------------------------| |Description: |Configures action of break signal. | |----------------------------------------------------------------| | Command |Break from DTE | Break from | Modem | Break from | | | | DTE |receives \B |remote modem| | |Reliable/Normal| | | | | | mode |Direct mode | | | |---------+---------------+------------+------------+------------| |\K0 |Enter command |Send break |Buffers |Buffers | | |mode, do not |to remote |cleared and |cleared and | | |send break to |modem |break sent |break sent | | |remote modem. |immediately,|to remote |to DTE. | | | |then enter |modem. | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |\K1 |Buffers cleared|Send break |Buffers |Buffers | | |and break sent |to remote |cleared and |cleared and | | |to remote |modem |break sent |break sent | | |modem. |immediately.|to remote |to DTE. | | | | |modem. | | |---------+---------------+------------+------------+------------| |\K2 |Enter command |Send break |Send break |Send break | | |mode, do not |to remote |to remote |to DTE | | |send break to |modem |modem |immediately.| | |remote modem. |immediately,|immediately.| | | | |then enter | | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |\K3 |Send break to |Send break |Send break |Send break | | |remote modem |to remote |to remote |to DTE | | |immediately. |modem |modem |immediately.| | | |immediately.|immediately.| | |---------+---------------+------------+------------+------------| |\K4 |Enter command |Send break |Send break |Break sent | | |mode, do not |to remote |to remote |with | | |send break to |modem |modem with |received | | |remote modem. |immediately,|transmitted |data to the | | | |then enter |data. |DTE. | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |>> \K5 |Send break with|Send break |Send break |Break sent | | |transmitted |to remote |to remote |with | | |data. |modem |modem with |received | | | |immediately.|transmitted |data to the | | | | |data. |DTE. | +----------------------------------------------------------------+ +----------------------------------------------------------------+ | BREAK TYPE | |----------------------------------------------------------------| |Type: |Register | |------------------+---------------------------------------------| |Format: |AT [cmds] S59=n [cmds] | |------------------+---------------------------------------------| |Example: |AT S59=1 | |------------------+---------------------------------------------| |Description: |Configures action of break signal. | |----------------------------------------------------------------| | Command |Break from DTE | Break from | Modem | Break from | | | | DTE |receives \B |remote modem| | |Reliable/Normal| | | | | | mode |Direct mode | | | |---------+---------------+------------+------------+------------| |S59=0 |Enter command |Send break |Buffers |Buffers | | |mode, do not |to remote |cleared and |cleared and | | |send break to |modem |break sent |break sent | | |remote modem. |immediately,|to remote |to DTE. | | | |then enter |modem. | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |S59=1 |Buffers cleared|Send break |Buffers |Buffers | | |and break sent |to remote |cleared and |cleared and | | |to remote |modem |break sent |break sent | | |modem. |immediately.|to remote |to DTE. | | | | |modem. | | |---------+---------------+------------+------------+------------| |S59=2 |Enter command |Send break |Send break |Send break | | |mode, do not |to remote |to remote |to DTE | | |send break to |modem |modem |immediately.| | |remote modem. |immediately,|immediately.| | | | |then enter | | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |S59=3 |Send break to |Send break |Send break |Send break | | |remote modem |to remote |to remote |to DTE | | |immediately. |modem |modem |immediately.| | | |immediately.|immediately.| | |---------+---------------+------------+------------+------------| |S59=4 |Enter command |Send break |Send break |Break sent | | |mode, do not |to remote |to remote |with | | |send break to |modem |modem with |received | | |remote modem. |immediately,|transmitted |data to the | | | |then enter |data. |DTE. | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |>> S59=5 |Send break with|Send break |Send break |Break sent | | |transmitted |to remote |to remote |with | | |data. |modem |modem with |received | | | |immediately.|transmitted |data to the | | | | |data. |DTE. | +----------------------------------------------------------------+ +------------------------------------------------------------+ | CD SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 *RS1 *SR1 | |--------------+---------------------------------------------| | Description: | Configures the behavior of the carrier | | | detect signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> &C0 | CD forced high. | |--------------+---------------------------------------------| | &C1 | CD normal. | |--------------+---------------------------------------------| | &C2 | CD forced high except during disconnect. | |--------------+---------------------------------------------| | &C3 | CD follows remote RTS signal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CHARACTER LENGTH AND PARITY | |------------------------------------------------------------| | Format | AT [cmds] S61? [cmds] | |-------------------+----------------------------------------| | Example: | ATS61? | |-------------------+----------------------------------------| | Default: | Read-only | |-------------------+----------------------------------------| | Range: | 0 - 56 | |-------------------+----------------------------------------| | Unit: | Bit-mapped | |-------------------+----------------------------------------| | Description: | Reports current character length and | | | parity. | |------------------------------------------------------------| | Bit | Value | Meaning | |-----------+--------------+---------------------------------| | 2 - 0 | 0 | Not used. | |-----------+--------------+---------------------------------| | 3 | 0 >> 1 | 7 bit character length set. | | | | | | | | 8 bit character length set. | |-----------+--------------+---------------------------------| | 5, 4 |>> 00 01 10 | MARK parity. | | | 11 | | | | | No parity. | | | | | | | | Odd parity. | | | | | | | | Even parity. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND SET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *NTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *NT0 | |--------------+---------------------------------------------| | Description: | Disables the AT command set. | |--------------+---------------------------------------------| | Note: | To re-enable the command set, power down | | | the modem and then cycle power seven times. | | | The modem must remain powered on each time | | | at least one second but not more than five. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *NT0 | Command set disabled. | |--------------+---------------------------------------------| | *NT1 | Command set enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMUNICATIONS MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Mn [cmds] | |--------------+---------------------------------------------| | Example: | AT &M2 H1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects the active communications mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> &M0 | Asynchronous command and data modes. | |--------------+---------------------------------------------| | &M1 | Asynchronous command, synchronous connect | | | mode. | |--------------+---------------------------------------------| | &M2 | DTR dialing enabled, synchronous connect | | | mode. | |--------------+---------------------------------------------| | &M3 | Manual dialing only, synchronous connect | | | mode. | |--------------+---------------------------------------------| | &M4 | V.25bis bisynchronous command, synchronous | | | connect mode. | |--------------+---------------------------------------------| | &M5 | V.25bis SDLC command, synchronous connect | | | mode. | |--------------+---------------------------------------------| | &M6 | V.25bis asynchronous command, synchronous | | | connect mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT %Cn | |--------------+---------------------------------------------| | Example: | AT *EC0 %C1 *AP0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %C0 | Data compression disabled. | |--------------+---------------------------------------------| |>> %C1 | Data compression enabled. | |--------------+---------------------------------------------| | %C2 | Data compression enabled on transmit only. | |--------------+---------------------------------------------| | %C3 | Data compression enabled on receive only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT S56=n | |--------------+---------------------------------------------| | Example: | AT *EC0 S56=1 *AP0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S56=0 | Data compression disabled. | |--------------+---------------------------------------------| | S56=1 | Data compression enabled on transmit only. | |--------------+---------------------------------------------| | S56=2 | Data compression enabled on receive only. | |--------------+---------------------------------------------| |>> S56=3 | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION AND ERROR CORRECTION - CURRENT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S71? [cmds] | |--------------+---------------------------------------------| | Example: | AT S71? | |--------------+---------------------------------------------| | Default: | Read-only | |--------------+---------------------------------------------| | Description: | Reports current compression and error | | | correction protocols. | |--------------+---------------------------------------------| | Value | Meaning | |--------------+---------------------------------------------| | 0 | No compression or error correction | | | protocols active. | |--------------+---------------------------------------------| | 1 | Negotiation in progress. | |--------------+---------------------------------------------| | 2 | MNP2 active. | |--------------+---------------------------------------------| | 3 | MNP3 active. | |--------------+---------------------------------------------| | 4 | MNP4 active. | |--------------+---------------------------------------------| | 5 | MNP5 active. | |--------------+---------------------------------------------| | 6 | V.42 active. | |--------------+---------------------------------------------| | 7 | V.42bis active. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Example: | AT \N1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Sets connect mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode enabled. | |--------------+---------------------------------------------| | \N1 | Direct mode enabled. | |--------------+---------------------------------------------| | \N2 | MNP mode only enabled. | |--------------+---------------------------------------------| | \N3 | MNP mode with fallback to normal mode | | | enabled. | |--------------+---------------------------------------------| | \N4 | LAP-M mode only enabled. | |--------------+---------------------------------------------| | \N5 | LAP-M mode with fallback to normal mode | | | enabled. | |--------------+---------------------------------------------| | \N6 | LAP-M mode with fallback to MNP enabled. | |--------------+---------------------------------------------| |>> \N7 | LAP-M mode with fallback to MNP and normal | | | modes enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED - CURRENT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S67? [cmds] | |--------------+---------------------------------------------| | Example: | AT S67? | |--------------+---------------------------------------------| | Default: | Read-only | |--------------+---------------------------------------------| | Description: | Reports current connection speed. | |--------------+---------------------------------------------| | Value | Meaning | |--------------+---------------------------------------------| | 1 | 300bps current speed. | |--------------+---------------------------------------------| | 3 | 1200bps current speed. | |--------------+---------------------------------------------| | 4 | 2400bps current speed. | |--------------+---------------------------------------------| | 5 | 4800bps current speed. | |--------------+---------------------------------------------| | 6 | 7200bps current speed. | |--------------+---------------------------------------------| | 7 | 9600bps uncoded current speed. | |--------------+---------------------------------------------| | 8 | 9600bps current speed. | |--------------+---------------------------------------------| | 9 | 12Kbps current speed. | |--------------+---------------------------------------------| | 10 | 14.4Kbps current speed. | |--------------+---------------------------------------------| | 11 | 16.8Kbps current speed. | |--------------+---------------------------------------------| | 12 | 19.2Kbps current speed. | |--------------+---------------------------------------------| | 13 | 21.6Kbps current speed. | |--------------+---------------------------------------------| | 14 | 24Kbps current speed. | |--------------+---------------------------------------------| | 15 | 26.4Kbps current speed. | |--------------+---------------------------------------------| | 16 | 28.8Kbps current speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Ln [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 %B14 \J0 | |--------------+---------------------------------------------| | Description: | Sets slowest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %L0 | No minimum speed. | |--------------+---------------------------------------------| | %L2 | Select 1200bps minimum speed. | |--------------+---------------------------------------------| | %L3 | Select 2400bps minimum speed. | |--------------+---------------------------------------------| | %L4 | Select 4800bps minimum speed. | |--------------+---------------------------------------------| | %L5 | Select 9600bps uncoded minimum speed. | |--------------+---------------------------------------------| | %L6 | Select 9600bps minimum speed. | |--------------+---------------------------------------------| | %L7 | Select 7200bps minimum speed. | |--------------+---------------------------------------------| | %L8 | Select 12Kbps minimum speed. | |--------------+---------------------------------------------| | %L9 | Select 14.4Kbps minimum speed. | |--------------+---------------------------------------------| | %L11 | Select 16.8Kbps minimum speed. | |--------------+---------------------------------------------| | %L12 | Select 19.2Kbps minimum speed. | |--------------+---------------------------------------------| | %L13 | Select 21.6Kbps minimum speed. | |--------------+---------------------------------------------| | %L14 | Select 24Kbps minimum speed. | |--------------+---------------------------------------------| | %L15 | Select 26.4Kbps minimum speed. | |--------------+---------------------------------------------| | %L16 | Select 28.8Kbps minimum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S81=n [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 S81=14 \J0 | |--------------+---------------------------------------------| | Description: | Sets slowest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S81=0 | No minimum speed. | |--------------+---------------------------------------------| | S81=3 | Select 1200bps minimum speed. | |--------------+---------------------------------------------| | S81=4 | Select 2400bps minimum speed. | |--------------+---------------------------------------------| | S81=5 | Select 4800bps minimum speed. | |--------------+---------------------------------------------| | S81=6 | Select 7200bps minimum speed. | |--------------+---------------------------------------------| | S81=7 | Select 9600bps uncoded minimum speed. | |--------------+---------------------------------------------| | S81=8 | Select 9600bps minimum speed. | |--------------+---------------------------------------------| | S81=9 | Select 12Kbps minimum speed. | |--------------+---------------------------------------------| | S81=10 | Select 14.4Kbps minimum speed. | |--------------+---------------------------------------------| | S81=11 | Select 16.8Kbps minimum speed. | |--------------+---------------------------------------------| | S81=12 | Select 19.2Kbps minimum speed. | |--------------+---------------------------------------------| | S81=13 | Select 21.6Kbps minimum speed. | |--------------+---------------------------------------------| | S81=14 | Select 24Kbps minimum speed. | |--------------+---------------------------------------------| | S81=15 | Select 26.4Kbps minimum speed. | |--------------+---------------------------------------------| | S81=16 | Select 28.8Kbps minimum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 %B14 \J0 | |--------------+---------------------------------------------| | Description: | Sets fastest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %B0 | Follow serial port speed. | |--------------+---------------------------------------------| | %B1 | Select 300bps maximum speed. | |--------------+---------------------------------------------| | %B2 | Select 1200bps maximum speed. | |--------------+---------------------------------------------| | %B3 | Select 2400bps maximum speed. | |--------------+---------------------------------------------| | %B4 | Select 4800bps maximum speed. | |--------------+---------------------------------------------| | %B5 | Select 9600bps uncoded maximum speed. | |--------------+---------------------------------------------| | %B6 | Select 9600bps maximum speed. | |--------------+---------------------------------------------| | %B7 | Select 7200bps maximum speed. | |--------------+---------------------------------------------| | %B8 | Select 12Kbps maximum speed. | |--------------+---------------------------------------------| |>> %B9 | Select 14.4Kbps maximum speed. | |--------------+---------------------------------------------| | %B11 | Select 16.8Kbps maximum speed. | |--------------+---------------------------------------------| | %B12 | Select 19.2Kbps maximum speed. | |--------------+---------------------------------------------| | %B13 | Select 21.6Kbps maximum speed. | |--------------+---------------------------------------------| | %B14 | Select 24Kbps maximum speed. | |--------------+---------------------------------------------| | %B15 | Select 26.4Kbps maximum speed. | |--------------+---------------------------------------------| | %B16 | Select 28.8Kbps maximum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S69=n [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 S69=14 \J0 | |--------------+---------------------------------------------| | Description: | Sets fastest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S69=0 | Follow serial port speed. | |--------------+---------------------------------------------| | S69=1 | Select 300bps maximum speed. | |--------------+---------------------------------------------| | S69=3 | Select 1200bps maximum speed. | |--------------+---------------------------------------------| | S69=4 | Select 2400bps maximum speed. | |--------------+---------------------------------------------| | S69=5 | Select 4800bps maximum speed. | |--------------+---------------------------------------------| | S69=6 | Select 7200bps maximum speed. | |--------------+---------------------------------------------| | S69=7 | Select 9600bps uncoded maximum speed. | |--------------+---------------------------------------------| | S69=8 | Select 9600bps maximum speed. | |--------------+---------------------------------------------| | S69=9 | Select 12Kbps maximum speed. | |--------------+---------------------------------------------| |>> S69=10 | Select 14.4Kbps maximum speed. | |--------------+---------------------------------------------| | S69=11 | Select 16.8Kbps maximum speed. | |--------------+---------------------------------------------| | S69=12 | Select 19.2Kbps maximum speed. | |--------------+---------------------------------------------| | S69=13 | Select 21.6Kbps maximum speed. | |--------------+---------------------------------------------| | S69=14 | Select 24Kbps maximum speed. | |--------------+---------------------------------------------| | S69=15 | Select 26.4Kbps maximum speed. | |--------------+---------------------------------------------| | S69=16 | Select 28.8Kbps maximum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT &R0 | |--------------+---------------------------------------------| | Description: | Selects the function of the CTS signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &R0 | CTS normal. | |--------------+---------------------------------------------| |>> &R1 | CTS forced high. | |--------------+---------------------------------------------| | &R2 | CTS follows CD. | |--------------+---------------------------------------------| | &R9 | CTS follows RTS. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT BUFFER DELAY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Dn [cmds] | |--------------+---------------------------------------------| | Example: | AT %D0 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | disconnect if there is data in the transmit | | | or receive buffers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT BUFFER DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S62=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S62=0 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | disconnect if there is data in the transmit | | | or receive buffers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT ON LOSS OF CURRENT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LCn [cmds] | |--------------+---------------------------------------------| | Example: | AT*LC0 | |--------------+---------------------------------------------| | Description: | Causes the modem to disconnect if the | | | telephone line's current drops. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LC0 | Do not disconnect on loss of current. | |--------------+---------------------------------------------| | *LC1 | Disconnect after 8ms if current is lost. | |--------------+---------------------------------------------| |>> *LC2 | Disconnect after 90ms if current is lost. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT RESET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ROn [cmds] | |--------------+---------------------------------------------| | Example: | AT*RO0 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will reset on | | | disconnect. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *RO0 | Modem will not reset on disconnect. | |--------------+---------------------------------------------| | *RO1 | Modem will reset on disconnect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY STORED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *ND [cmds] | |--------------+---------------------------------------------| | Example: | AT*CN3,555-1212 *ND | |--------------+---------------------------------------------| | Description: | Displays all stored phone numbers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Sn [cmds] | |--------------+---------------------------------------------| | Example: | AT &S0 | |--------------+---------------------------------------------| | Description: | Selects the function of the DSR signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> &S0 | DSR forced high. | |--------------+---------------------------------------------| | &S1 | DSR normal. | |--------------+---------------------------------------------| | &S2 | DSR normal, except forced low on | | | disconnect. | |--------------+---------------------------------------------| | &S3 | DSR follows OH. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Example: | AT \V1 %C1 | |--------------+---------------------------------------------| | Description: | Selects extended result codes. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \V0 | Extended result codes disabled. | |--------------+---------------------------------------------| | \V1 | Extended result codes enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S82=n [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 S82=4 \J0 | |--------------+---------------------------------------------| | Description: | Selects extended result codes. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S82=0 | Display DTE rate; extended result codes | | | disabled. | |--------------+---------------------------------------------| | S82=4 | Display DCE rate; extended result codes | | | enabled. | |--------------+---------------------------------------------| | S82=8 | Display DCE rate; extended result codes | | | disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY DEFAULTS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT &Fn | |--------------+---------------------------------------------| | Example: | AT &F8 | |--------------+---------------------------------------------| | Default: | 1 | |--------------+---------------------------------------------| | Range: | 1-9 | |--------------+---------------------------------------------| | Description: | Loads factory defaults set n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | Example: | AT G1 &M0 | |--------------+---------------------------------------------| | Description: | Selects modem port flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \G0 | Flow control disabled. | |--------------+---------------------------------------------| | \G1 | Flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF FROM TERMINAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S45=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS45=22 | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character the terminal sends to | | | represent XOFF. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XON FROM TERMINAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S44=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS44=20 | |--------------+---------------------------------------------| | Default: | 17 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character the terminal sends to | | | represent XON. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF TO TERMINAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S50=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS50=23 | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character the modem sends to | | | represent XOFF. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XON TO TERMINAL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S49=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS49=21 | |--------------+---------------------------------------------| | Default: | 17 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character the modem sends to | | | represent XON. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL MODE | |------------------------------------------------------------| | Format | AT [cmds] S54=n [cmds] | |-----------------+------------------------------------------| | Example: | ATS54=35 | |-----------------+------------------------------------------| | Default: | 33 | |-----------------+------------------------------------------| | Range: | 0 - 123 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls flow control type and | | | pass-through. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 1, 0 | 00 >> | Flow control disabled. | | | 01 10 | | | | 11 | Bidirectional XON/XOFF flow control | | | | enabled. | | | | | | | | CTS flow control by DCE enabled. | | | | | | | | Bidirectional CTS/RTS flow control | | | | enabled. | |-----------+-------+----------------------------------------| | 2 | 0 | Not used. | |-----------+-------+----------------------------------------| | 3 |>> 0 1 | Flow control disabled. | | | | | | | | Flow control enabled. | |-----------+-------+----------------------------------------| | 4 |>> 0 1 | XON/XOFF signals trapped by local | | | | modem. | | | | | | | | XON/XOFF passed through local modem. | |-----------+-------+----------------------------------------| | 6, 5 | 00 >> | Flow control by DCE disabled. | | | 01 10 | | | | 11 | XON/XOFF flow control by DCE enabled. | | | | | | | | RTS flow control by DCE enabled. | | | | | | | | RTS flow control by DCE enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Qn [cmds] | |--------------+---------------------------------------------| | Example: | AT \Q5 | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \Q0 | Flow control disabled. | |--------------+---------------------------------------------| |>> \Q1 | Bidirectional XON/XOFF flow control | | | enabled. | |--------------+---------------------------------------------| | \Q2 | CTS flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q3 | Bidirectional CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | \Q4 | Flow control by DCE disabled. | |--------------+---------------------------------------------| |>> \Q5 | XON/XOFF flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q6 | RTS flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q7 | RTS flow control by DCE enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FORCE RETRAIN | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *RRn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RR14 O | |--------------+---------------------------------------------| | Description: | Forces the modem to attempt to retrain to | | | the selected speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RR0 | Attempt 2400bps speed. | |--------------+---------------------------------------------| | *RR1 | Attempt 4800bps speed. | |--------------+---------------------------------------------| | *RR2 | Attempt 7200bps speed. | |--------------+---------------------------------------------| | *RR3 | Attempt 9600bps speed. | |--------------+---------------------------------------------| | *RR4 | Attempt 12Kbps speed. | |--------------+---------------------------------------------| | *RR5 | Attempt 14.4Kbps speed. | |--------------+---------------------------------------------| | *RR6 | Attempt 16.8Kbps speed. | |--------------+---------------------------------------------| | *RR7 | Attempt 19.2Kbps speed. | |--------------+---------------------------------------------| | *RR8 | Attempt 21.6Kbps speed. | |--------------+---------------------------------------------| | *RR9 | Attempt 24Kbps speed. | |--------------+---------------------------------------------| | *RR10 | Attempt 26.4Kbps speed. | |--------------+---------------------------------------------| | *RR11 | Attempt 28.8Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANG UP MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Hn [cmds] | |--------------+---------------------------------------------| | Example: | AT H3 O | |--------------+---------------------------------------------| | Description: | Selects how the modem will hang up. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> H2 | Set hang up mode to normal on next ATH | | | command. | |--------------+---------------------------------------------| | H3 | Set hang up mode to fast on next ATH | | | command. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP SCREENS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT $H=xxxx | |--------------+---------------------------------------------| | Example: | AT $H=MNP | |--------------+---------------------------------------------| | Description: | Shows modem help screens. If a string is | | | included as shown in the example, the modem | | | will perform a search for the string; | | | otherwise, the whole help section will be | | | displayed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT\T20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | 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] S58=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S58=20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP NUMBER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S35=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S35=3 | |--------------+---------------------------------------------| | Description: | Sets the memory location the modem will | | | dial for DTR dialing and leased-line | | | backup. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP RECOVERY DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS28=5 | |--------------+---------------------------------------------| | Default: | 15 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | After leased line failure, modem attempts | | | to reconnect after specified delay. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP - RESTORAL OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DBn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DB0 D555-1212 | |--------------+---------------------------------------------| | Description: | Selects what will initiate the restoral of | | | a leased line connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *DB0 | Modem will restore connection only when | | | modem receives *LB or *LD. | |--------------+---------------------------------------------| | *DB1 | Modem will restore connection | | | automatically. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP - RESTORE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LB [cmds] | |--------------+---------------------------------------------| | Example: | AT *OR1 *LB | |--------------+---------------------------------------------| | Description: | Commands the modem to attempt to restore | | | the leased line connection, or to wait for | | | a leased line call if in answer-only mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP - RESTORE MANUALLY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LD [cmds] | |--------------+---------------------------------------------| | Example: | AT *OR0 *LD | |--------------+---------------------------------------------| | Description: | Commands the modem to dial the default | | | number to restore the leased line | | | connection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *TLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *TL15 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 30 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission when | | | in leased line mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S52=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S52=15 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 30 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission when | | | in leased line mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Ln [cmds] | |--------------+---------------------------------------------| | Example: | AT &L2 H1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects line type. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> &L0 | Switched line. | |--------------+---------------------------------------------| | &L1 | 2-wire leased line. | |--------------+---------------------------------------------| | &L2 | 4-wire leased line. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED CHANGE ON PIN 23 | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *FBn [cmds] | |--------------+---------------------------------------------| | Example: | AT *FB1 | |--------------+---------------------------------------------| | Description: | Selects whether a voltage transition on pin | | | 23 will cause the modem to change the | | | serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *FB0 | Pin 23 transition ignored. | |--------------+---------------------------------------------| | *FB1 | Pin 23 negative causes modem to increase | | | serial port speed; pin 23 positive causes | | | modem to decrease serial port speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED - CURRENT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S80=n [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 S80=14 \J0 | |--------------+---------------------------------------------| | Description: | Reports the current serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | 1 | 300bps current speed. | |--------------+---------------------------------------------| | 2 | 600bps current speed. | |--------------+---------------------------------------------| | 3 | 1200bps current speed. | |--------------+---------------------------------------------| | 4 | 2400bps current speed. | |--------------+---------------------------------------------| | 5 | 4800bps current speed. | |--------------+---------------------------------------------| | 6 | 7200bps current speed. | |--------------+---------------------------------------------| | 7 | 9600bps current speed. | |--------------+---------------------------------------------| | 8 | 12Kbps current speed. | |--------------+---------------------------------------------| | 9 | 14.4Kbps current speed. | |--------------+---------------------------------------------| | 10 | 16.8Kbps current speed. | |--------------+---------------------------------------------| | 11 | 19.2Kbps current speed. | |--------------+---------------------------------------------| | 12 | 21.6Kbps current speed. | |--------------+---------------------------------------------| | 13 | 24Kbps current speed. | |--------------+---------------------------------------------| | 14 | 26.4Kbps current speed. | |--------------+---------------------------------------------| | 15 | 28.8Kbps current speed. | |--------------+---------------------------------------------| | 16 | 38.4Kbps current speed. | |--------------+---------------------------------------------| | 17 | 57.6Kbps current speed. | |--------------+---------------------------------------------| | 18 | 115.2Kbps current speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Jn [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 %B14 \J0 | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \J0 | Serial speed locked. | |--------------+---------------------------------------------| | \J1 | Serial speed follows connect speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOOPBACK TEST ON PIN 18 | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LAn [cmds] | |--------------+---------------------------------------------| | Example: | AT*LA0 | |--------------+---------------------------------------------| | Description: | Controls whether the modem will perform a | | | local analog loopback test when pin 18 goes | | | high. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *LA0 | Pin 18 has no function. | |--------------+---------------------------------------------| | *LA1 | Pin 18 going high causes the modem to | | | perform local analog loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOOPBACK TEST ON PIN 21 | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RDn [cmds] | |--------------+---------------------------------------------| | Example: | AT*RD0 | |--------------+---------------------------------------------| | Description: | Controls whether the modem will perform a | | | remote digital loopback test when pin 21 | | | goes high. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *RD0 | Pin 21 has no function. | |--------------+---------------------------------------------| | *RD1 | Pin 21 going high causes the modem to | | | perform remote digital loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \An [cmds] | |--------------+---------------------------------------------| | Example: | AT \A3 %C1 | |--------------+---------------------------------------------| | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S63=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S63=3 %C1 | |--------------+---------------------------------------------| | Description: | Sets the maximum transmittable block size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S63=0 | MNP block size is 64 characters. | |--------------+---------------------------------------------| | S63=1 | MNP block size is 128 characters. | |--------------+---------------------------------------------| | S63=2 | MNP block size is 192 characters. | |--------------+---------------------------------------------| |>> S63=3 | MNP block size is 256 characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MMn [cmds] | |--------------+---------------------------------------------| | Example: | AT %E1 *MM12 | |--------------+---------------------------------------------| | Description: | Selects the current protocol. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MM0 | Selects all protocols. | |--------------+---------------------------------------------| | *MM1 | Selects V.21 only. | |--------------+---------------------------------------------| | *MM2 | Selects Bell 103 only. | |--------------+---------------------------------------------| | *MM3 | Selects Bell 212 only. | |--------------+---------------------------------------------| | *MM5 | Selects V.22bis only. | |--------------+---------------------------------------------| | *MM6 | Selects V.27bis only. | |--------------+---------------------------------------------| | *MM8 | Selects V.29 only. | |--------------+---------------------------------------------| | *MM10 | Selects V.33 only. | |--------------+---------------------------------------------| | *MM11 | Selects V.32bis only. | |--------------+---------------------------------------------| | *MM12 | Selects V.34 only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S88=n [cmds] | |--------------+---------------------------------------------| | Example: | AT %E1 S88=12 | |--------------+---------------------------------------------| | Description: | Selects the current protocol. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S88=0 | Selects all protocols. | |--------------+---------------------------------------------| | S88=1 | Selects V.21 only. | |--------------+---------------------------------------------| | S88=2 | Selects Bell 103 only. | |--------------+---------------------------------------------| | S88=3 | Selects Bell 212 only. | |--------------+---------------------------------------------| | S88=5 | Selects V.22bis only. | |--------------+---------------------------------------------| | S88=6 | Selects V.27bis only. | |--------------+---------------------------------------------| | S88=8 | Selects V.29 only. | |--------------+---------------------------------------------| | S88=10 | Selects V.33 only. | |--------------+---------------------------------------------| | S88=11 | Selects V.32bis only. | |--------------+---------------------------------------------| | S88=12 | Selects V.34 only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED - CURRENT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S91? [cmds] | |--------------+---------------------------------------------| | Example: | AT %E1 S91? | |--------------+---------------------------------------------| | Description: | Reports the current protocol. | |--------------+---------------------------------------------| | Value | Meaning | |--------------+---------------------------------------------| | 0 | Modem will select protocol automatically. | |--------------+---------------------------------------------| | 1 | V.21 only selected. | |--------------+---------------------------------------------| | 2 | Bell 103 only selected. | |--------------+---------------------------------------------| | 3 | Bell 212 only selected. | |--------------+---------------------------------------------| | 5 | V.22bis only selected. | |--------------+---------------------------------------------| | 6 | V.27bis only selected. | |--------------+---------------------------------------------| | 8 | V.29 only selected. | |--------------+---------------------------------------------| | 10 | V.33 only selected. | |--------------+---------------------------------------------| | 11 | V.32bis only selected. | |--------------+---------------------------------------------| | 12 | V.34 only selected. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %T=n [cmds] | | | | | | AT [cmds] D<#>%Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT &V2 %T=102475 | | | | | | AT D555-1212%T102475 | |--------------+---------------------------------------------| | Description: | Initiates a remote configuration session. | | | This command may follow a dial command, | | | omitting the equal sign, to initiate remote | | | configuration immediately on connection. %T | | | with no parameter will quit the current | | | session. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONFIGURATION PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %P=nnnn [cmds] | |--------------+---------------------------------------------| | Example: | AT %P=102475 D555-1212 | |--------------+---------------------------------------------| | Default: | N/A | |--------------+---------------------------------------------| | Range: | 0-99999999, D, | |--------------+---------------------------------------------| | Description: | Sets the security code for remote | | | configuration sessions. If nnnn is omitted, | | | the code will be cleared; if a D is given, | | | remote configuration is disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Example: | AT I3 &V1 %V | |--------------+---------------------------------------------| | Description: | Displays modem properties. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | I0 | Reports modem model and speed. | |--------------+---------------------------------------------| | I1 | Reports checksum number. | |--------------+---------------------------------------------| | I3 | Reports firmware version. | |--------------+---------------------------------------------| | I4 | Reports feature code. | |--------------+---------------------------------------------| | I5 | Reports reason for last disconnect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION AND CONFIGURATION PROFILE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &Vn [cmds] | |--------------+---------------------------------------------| | Example: | AT I3 &V1 %V | |--------------+---------------------------------------------| | Description: | Reports configuration profiles and other | | | information. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &V0 | Report configuration profiles. | |--------------+---------------------------------------------| | &V1 | Report connection status and internal modem | | | information. | |--------------+---------------------------------------------| | &V2 | Report active configuration profile. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT PRODUCT VERSION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %V [cmds] | |--------------+---------------------------------------------| | Example: | AT I3 &V1 %V | |--------------+---------------------------------------------| | Description: | Reports product version. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT SERIAL NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $V [cmds] | |--------------+---------------------------------------------| | Example: | AT I3 &V1 $V | |--------------+---------------------------------------------| | Description: | Reports product serial number. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RC0 | |--------------+---------------------------------------------| | Description: | Selects normal or Motorola result code | | | numbering. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *RC0 | Result code 15 is CONNECT 4800 and code 18 | | | is CONNECT 9600 (standard). | |--------------+---------------------------------------------| | *RC1 | Result code 11 is CONNECT 4800 and code 12 | | | is CONNECT 9600 (Motorola). | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE MODE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S57=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S57=0 | |--------------+---------------------------------------------| | Description: | Selects normal or Motorola result code | | | numbering. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S57=0 | Result code 15 is CONNECT 4800 and code 18 | | | is CONNECT 9600 (standard). | |--------------+---------------------------------------------| | S57=1 | Result code 11 is CONNECT 4800 and code 12 | | | is CONNECT 9600 (Motorola). | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRAIN SENSITIVITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 %R1 | |--------------+---------------------------------------------| | Description: | Sets how poor line conditions must be | | | before the modem will initiate a retrain. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %R0 | Modem will not initiate retrain. | |--------------+---------------------------------------------| | %R1 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-5 for eight seconds, | | | or for one second in V.22bis mode. | |--------------+---------------------------------------------| | %R2 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-4 for eight seconds, | | | or for one second in V.22bis mode. | |--------------+---------------------------------------------| | %R3 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-3 for eight seconds, | | | or for one second in V.22bis mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRAIN SENSITIVITY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S53=n [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 S53=1 | |--------------+---------------------------------------------| | Description: | Sets how poor line conditions must be | | | before the modem will initiate a retrain. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S53=0 | Modem will not initiate retrain. | |--------------+---------------------------------------------| | S53=4 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-5 for eight seconds, | | | or for one second in V.22bis mode. | |--------------+---------------------------------------------| | S53=8 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-4 for eight seconds, | | | or for one second in V.22bis mode. | |--------------+---------------------------------------------| | S53=12 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-3 for eight seconds, | | | or for one second in V.22bis mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RI SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT \R0 Q0 | |--------------+---------------------------------------------| | Description: | Controls the behavior of the Ring Indicator | | | signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \R0 | RI signal high during rings, and forced | | | high for duration of call. | |--------------+---------------------------------------------| |>> \R1 | RI signal high during rings only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - AUTOCALLBACK DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S78=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S78=10 | |--------------+---------------------------------------------| | Default: | 30 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | execute the autocallback sequence after an | | | incoming call is detected. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - CALLBACK DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S74=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S74=30 | |--------------+---------------------------------------------| | Default: | 15 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | execute a callback sequence after the user | | | has disconnected. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - CALLBACK NUMBER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Cn=<#> [cmds] | |--------------+---------------------------------------------| | Example: | AT $L0=3 $C0=1(303)443-3388 | |--------------+---------------------------------------------| | Description: | Sets the callback number for user number n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - CALLBACK RETRY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S75=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S75=5 | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 redial | |--------------+---------------------------------------------| | Description: | Sets how many times the modem will attempt | | | to execute a callback if the first call | | | fails. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - CALLBACK RETRY DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S76=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S76=60 | |--------------+---------------------------------------------| | Default: | 15 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | execute another callback sequence after one | | | has failed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY CHECK | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $D? [cmds] | | | | | | AT [cmds] $E? [cmds] | |--------------+---------------------------------------------| | Example: | AT $DR $D? | |--------------+---------------------------------------------| | Description: | Reports whether security is enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - DELETE USER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT $R3 | |--------------+---------------------------------------------| | Description: | Deletes the user number n. User IDs 0 and 1 | | | cannot be deleted. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY DISABLE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $D=xxxx | |--------------+---------------------------------------------| | Example: | AT $D=MicroHouse | |--------------+---------------------------------------------| | Description: | Disables security. A password must be | | | specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY ENABLE - HIGH SECURITY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $EH=xxxx | |--------------+---------------------------------------------| | Example: | AT $EH=SuperSecret | |--------------+---------------------------------------------| | Description: | Enables security. The superuser password | | | must be specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY ENABLE - LOW SECURITY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $E=xxxx | |--------------+---------------------------------------------| | Example: | AT $E=MicroHouse | |--------------+---------------------------------------------| | Description: | Enables security. A password must be | | | specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - FAILED LOGIN ATTEMPT COUNTERS | |------------------------------------------------------------| | Type: | Configuration/Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $Mn [cmds] | |--------------+---------------------------------------------| | Example: | AT $M $M* | |--------------+---------------------------------------------| | Description: | Displays or clears the counters for failed | | | login attempts. If a number is specified, | | | the counter will be reset for that user. If | | | an * follows, all counters will be cleared. | | | If no character follows, the counters will | | | be displayed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - FAILED LOGIN ATTEMPT MAXIMUM | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S77=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S77=3 | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 attempt | |--------------+---------------------------------------------| | Description: | Sets the maximum number of failed logins | | | the modem will accept until it disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - HIGH SECURITY PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Pn=xxxx$xxxx | |--------------+---------------------------------------------| | Example: | AT $P0=SuperSecret$SuperSecret | |--------------+---------------------------------------------| | Description: | Sets the password for user number n to | | | xxxx. User number 0 is the superuser. The | | | password must be between 4 and 34 | | | characters inclusive. The $ character may | | | not be used. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - HIGH SECURITY RESET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $F=xxxx$xxxx | |--------------+---------------------------------------------| | Example: | AT $F=SuperSecret$SuperSecret | |--------------+---------------------------------------------| | Description: | Resets the high security options to their | | | factory defaults. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Lm=n [cmds] | |--------------+---------------------------------------------| | Example: | AT $L0=3 $C0=1(303)443-3388 | |--------------+---------------------------------------------| | Description: | Sets the security level for user number m. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $Lm=1 | Modem prompts for a user ID and password on | | | connection. | |--------------+---------------------------------------------| | $Lm=2 | Modem prompts for a user ID and password on | | | connection, then modem begins callback | | | sequence. | |--------------+---------------------------------------------| | $Lm=3 | Modem prompts for a user ID and password on | | | connection, then modem begins callback | | | sequence. When modem reconnects, it prompts | | | for a user ID and password again. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY LOGIN | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $n=xxxx [cmds] | |--------------+---------------------------------------------| | Example: | AT $1=MicroHouse | |--------------+---------------------------------------------| | Description: | Logs into modem, from the local machine or | | | remotely. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY LOGOUT | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $$ [cmds] | |--------------+---------------------------------------------| | Example: | AT $$ | |--------------+---------------------------------------------| | Description: | Logs out from the modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - LOW SECURITY PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $S=xxxx | |--------------+---------------------------------------------| | Example: | AT $S=MicroHouse | |--------------+---------------------------------------------| | Description: | Sets an empty login password to xxxx. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - LOW SECURITY PASSWORD CHANGE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $C=xxxx,yyyy | |--------------+---------------------------------------------| | Example: | AT $CMicroHouse=Fubar | |--------------+---------------------------------------------| | Description: | Changes the password xxxx to yyyy. If a - | | | is given for yyyy, the password will be | | | deleted. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - LOW SECURITY RESET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $DR [cmds] | |--------------+---------------------------------------------| | Example: | AT $DR $D? | |--------------+---------------------------------------------| | Description: | Resets the low security options to their | | | factory defaults. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Wm=n [cmds] | |--------------+---------------------------------------------| | Example: | AT $W0=3 $C0=1(303)443-3388 | |--------------+---------------------------------------------| | Description: | Controls what features a remote user has | | | access to. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $W0 | Remote users can access no extra features. | |--------------+---------------------------------------------| | $W1 | Remote users can change their passwords and | | | callback numbers. | |--------------+---------------------------------------------| | $W2 | Remote users can change their passwords and | | | callback numbers and login as the | | | superuser. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - PASSWORD TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S73=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S73=10 | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait for | | | a password when in secure mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - REPORT SUPERUSER STATUS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $Sn? [cmds] | |--------------+---------------------------------------------| | Example: | AT $S3? | |--------------+---------------------------------------------| | Description: | Reports whether user n has superuser | | | status. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - REPORT USER SETTINGS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $In [cmds] | |--------------+---------------------------------------------| | Example: | AT $I3 | |--------------+---------------------------------------------| | Description: | Reports security level and callback number | | | for user n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - REPORT USERS SETTINGS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $IBn [cmds] | |--------------+---------------------------------------------| | Example: | AT $IB11 | |--------------+---------------------------------------------| | Description: | Reports security level and callback number | | | for the ten users beginning at user number | | | n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY - SUPERUSER MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $S=xxxx [cmds] | |--------------+---------------------------------------------| | Example: | AT $S=SuperSecret | |--------------+---------------------------------------------| | Description: | Attempts to enter superuser mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STATUS REGISTER BIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | Write: AT [cmds] Sn.m=0 or 1 [cmds] | | | | | | Read: AT [cmds] Sn.m=? [cmds] | |--------------+---------------------------------------------| | Example: | AT S40.4=1 S51.3? | |--------------+---------------------------------------------| | Description: | Sets/clears or reads bit m of register n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STATUS REGISTER HEXADECIMAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | Write: AT [cmds] Sn^=hh [cmds] | | | | | | Read: AT [cmds] Sn?^ [cmds] | |--------------+---------------------------------------------| | Example: | AT S99^=3F S99?^ | |--------------+---------------------------------------------| | Description: | Sets register n to hexadecimal number hh or | | | displays register n in hexadecimal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE PHONE NUMBER IN NVRAM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CNn,<#> | |--------------+---------------------------------------------| | Example: | AT *AU4 *CN4,1(303)443-3388 | |--------------+---------------------------------------------| | Description: | Stores a phone number in the modem's | | | memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SWITCHED LINE TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Zn [cmds] | |--------------+---------------------------------------------| | Example: | AT %R1 %Z1 | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %Z0 | Permissive transmission level (level fixed | | | at -9dBm.) | |--------------+---------------------------------------------| | %Z1 | Programmable transmission level (level | | | controlled by exterior resistor, or -12dBm | | | if absent.) | +------------------------------------------------------------+ +------------------------------------------------------------+ | SWITCHED LINE TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *TDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *TD15 | |--------------+---------------------------------------------| | Default: | 9 | |--------------+---------------------------------------------| | Range: | 9 - 30 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission when | | | in switched line mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TALK/DATA MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *DAn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DA1 | |--------------+---------------------------------------------| | Description: | Selects talk or data mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *DA0 | Talk mode enabled. | |--------------+---------------------------------------------| | *DA1 | Data mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODE - BIDIRECTIONAL ANALOG LOOPBACK TEST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ANn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AN1 | |--------------+---------------------------------------------| | Description: | Controls the bidirectional local analog | | | loopback test mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *AN0 | End loopback test. | |--------------+---------------------------------------------| | *AN1 | Begin loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODE - BIDIRECTIONAL DIGITAL LOOPBACK TEST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DGn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DG1 | |--------------+---------------------------------------------| | Description: | Controls the bidirectional local digital | | | loopback test mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *DG0 | End loopback test. | |--------------+---------------------------------------------| | *DG1 | Begin loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Format | AT [cmds] S34=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS34=4 | |---------------+--------------------------------------------| | Default: | 0 | |---------------+--------------------------------------------| | Range: | 0 - 15 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Initiates and controls loopback tests. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 |>> 0 1 | End bidirectional local analog loopback | | | | test. | | | | | | | | Begin bidirectional local analog | | | | loopback test. | |---------+-------+------------------------------------------| | 1 |>> 0 1 | End bidirectional local digital loopback | | | | test. | | | | | | | | Begin bidirectional local digital | | | | loopback test. | |---------+-------+------------------------------------------| | 2 |>> 0 1 | Pin 18 has no function. | | | | | | | | Pin 18 going high causes the modem to | | | | perform local analog loopback test. | |---------+-------+------------------------------------------| | 3 |>> 0 1 | Pin 21 has no function. | | | | | | | | Pin 21 going high causes the modem to | | | | perform remote digital loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST STATUS | |------------------------------------------------------------| | Format | AT [cmds] S16=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS16=32 | |---------------+--------------------------------------------| | Default: | Read-only | |---------------+--------------------------------------------| | Range: | 0 - 255 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Contains status of loopback tests. | |------------------------------------------------------------| | Bit | Value | Function | |---------+--------+-----------------------------------------| | 0 | 0 | Local analog loopback test not in | | | | progress. | | | 1 | | | | | Local analog loopback test in progress. | |---------+--------+-----------------------------------------| | 1 | 0 | Remote analog loopback test not in | | | | progress. | | | 1 | | | | | Remote analog loopback test in | | | | progress. | |---------+--------+-----------------------------------------| | 2 | 0 | Local digital loopback test not in | | | | progress. | | | 1 | | | | | Local digital loopback test in | | | | progress. | |---------+--------+-----------------------------------------| | 3 | 0 | Remotely requested remote digital | | | | loopback test not in progress. | | | 1 | | | | | Remotely requested remote digital | | | | loopback test in progress. | |---------+--------+-----------------------------------------| | 4 | 0 | Locally requested remote digital | | | | loopback test not in progress. | | | 1 | | | | | Locally requested remote digital | | | | loopback test in progress. | |---------+--------+-----------------------------------------| | 5 | 0 | Remote digital loopback with local | | | | self-test not in progress. | | | 1 | | | | | Remote digital loopback with local | | | | self-test in progress. | |---------+--------+-----------------------------------------| | 6 | 0 | Local analog loopback with local | | | | self-test not in progress. | | | 1 | | | | | Local analog loopback with local | | | | self-test in progress. | |---------+--------+-----------------------------------------| | 7 | 0 | Remote analog loopback with local | | | | self-test not in progress. | | | 1 | | | | | Remote analog loopback with local | | | | self-test in progress. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.25bis OPTIONS | |------------------------------------------------------------| | Format | AT [cmds] S30=n [cmds] | |-----------------+------------------------------------------| | Example: | ATS30=4 | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0 - 230 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls V.25bis character set, VAL | | | response, NRZ/NRZI, and communications | | | mode. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+---------+--------------------------------------| | 0 | 0 | Not used. | |-----------+---------+--------------------------------------| | 1 |>> 0 1 | Use ASCII character set. | | | | | | | | Use EBCDIC character set. | |-----------+---------+--------------------------------------| | 2 |>> 0 1 | VAL response enabled. | | | | | | | | VAL response disabled. | |-----------+---------+--------------------------------------| | 3 | 0 | Not used. | |-----------+---------+--------------------------------------| | 4 | 0 | Not used. | |-----------+---------+--------------------------------------| | 5 |>> 0 1 | Use NRZ mode. | | | | | | | | Use NRZI mode. | |-----------+---------+--------------------------------------| | 7, 6 |>> 00 01 | V.25bis command set disabled. | | | 10 11 | | | | | V.25bis bisynchronous command, | | | | synchronous connect mode. | | | | | | | | V.25bis SDLC command, synchronous | | | | connect mode. | | | | | | | | V.25bis asynchronous command, | | | | synchronous connect mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 HANDSHAKE OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *FTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *FT0 | |--------------+---------------------------------------------| | Description: | Shortens V.32 and V.32bis handshake time. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *FT0 | Normal handshake sequence. | |--------------+---------------------------------------------| | *FT1 | Training time is shortened by 2 seconds in | | | V.32 and V.32bis modes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 OPTIONS | |------------------------------------------------------------| | Format: | AT [cmds] S95=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS95=240 | |----------------+-------------------------------------------| | Default: | 240 | |----------------+-------------------------------------------| | Range: | 0 - 240 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls non-linear coding, pre-emphasis, | | | shaping, and pre-coding. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 3 - 1 | 0 | Not used. | |-----------+-------+----------------------------------------| | 4 | 0 >> 1 | Non-linear coding disabled. | | | | | | | | Non-linear coding enabled. | |-----------+-------+----------------------------------------| | 5 | 0 >> 1 | Pre-emphasis disabled. | | | | | | | | Pre-emphasis enabled. | |-----------+-------+----------------------------------------| | 6 | 0 >> 1 | Constellation shaping disabled. | | | | | | | | Constellation shaping enabled. | |-----------+-------+----------------------------------------| | 7 | 0 >> 1 | Pre-coding disabled. | | | | | | | | Pre-coding enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 OPTIONS | |------------------------------------------------------------| | Format: | AT [cmds] S96=n [cmds] | |-----------------+------------------------------------------| | Example: | ATS96=160 | |-----------------+------------------------------------------| | Default: | 160 | |-----------------+------------------------------------------| | Range: | 0 - 160 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls TX level deviation and | | | asymmetric bit rates. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 4 - 0 | 0 | Not used. | |------------+-------+---------------------------------------| | 5 | 0 >> 1 | Asymmetric bit rates disabled. | | | | | | | | Asymmetric bit rates enabled. | |------------+-------+---------------------------------------| | 6 | 0 | Not used. | |------------+-------+---------------------------------------| | 7 | 0 >> 1 | TX level deviation disabled. | | | | | | | | TX level deviation enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 RETRAIN SENSITIVITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *THn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MM12 *TH1 | |--------------+---------------------------------------------| | Description: | Sets how poor line conditions must be | | | before the modem will initiate a retrain | | | when in V.34 mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *TH0 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-6. | |--------------+---------------------------------------------| | *TH1 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-4. | |--------------+---------------------------------------------| | *TH2 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-2. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 SPLIT BAUD MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ASn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AS1 | |--------------+---------------------------------------------| | Description: | Controls V.34 split baud mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *AS0 | V.34 split baud mode disabled. | |--------------+---------------------------------------------| | *AS1 | V.34 split baud mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42 NEGOTIATION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Mn [cmds] | |--------------+---------------------------------------------| | Example: | AT \M0 H1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects how the modem negotiates V.42 | | | modulation during handshaking. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \M0 | Normal handshaking enabled. | |--------------+---------------------------------------------| |>> \M1 | Fast handshaking enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Xn [cmds] | |--------------+---------------------------------------------| | Example: | AT \X7 O | |--------------+---------------------------------------------| | 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. | +------------------------------------------------------------+ Proprietary V.25bis Command Set +------------------------------------------------------------+ | CONNECTION | |------------------------------------------------------------| | Type: | Response | |--------------+---------------------------------------------| | Format: | CNX@nnnnnBPS | |--------------+---------------------------------------------| | Description: | A connection has been successfully | | | established at the rate specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY CURRENT COMMAND STATUS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RLOnnn;xx | |--------------+---------------------------------------------| | Example: | RLO112;2 | |--------------+---------------------------------------------| | Description: | Displays current setting of modem commands. | | | If no parameters are given, all commands | | | will be displayed. Otherwise, xx addresses | | | will be displayed beginning at nnn. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY LINKED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RLL | |--------------+---------------------------------------------| | Example: | RLL | |--------------+---------------------------------------------| | Description: | Requests the modem to return the list of | | | linked stored numbers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY STORED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RLN | |--------------+---------------------------------------------| | Example: | RLN | |--------------+---------------------------------------------| | Description: | Requests the modem to return the list of | | | stored numbers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INVALID | |------------------------------------------------------------| | Type: | Response | |--------------+---------------------------------------------| | Format: | INVxx | |--------------+---------------------------------------------| | Example: | INVCU | |--------------+---------------------------------------------| | Description: | The modem was issued an improper command. | | | The two letters following indicate the | | | error. | |--------------+---------------------------------------------| | Code | Meaning | |--------------+---------------------------------------------| | INVCU | An error occurred in transmission. | |--------------+---------------------------------------------| | INVMS | The command was too long or was followed by | | | a semicolon. | |--------------+---------------------------------------------| | INVPS | An improper number parameters were issued. | |--------------+---------------------------------------------| | INVPV | The parameters were ignored or invalid. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINK STORED NUMBERS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | PRLm;n | |--------------+---------------------------------------------| | Example: | PRL1;2 | |--------------+---------------------------------------------| | Description: | Links memory location m to memory location | | | n. If a call to location m fails, the | | | number at n will be dialed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | CRRn | |--------------+---------------------------------------------| | Example: | CRR4 | |--------------+---------------------------------------------| | Description: | Redials the last number dialed up to n | | | times. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT PRODUCT VERSION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | RLV | |--------------+---------------------------------------------| | Example: | RLV | |--------------+---------------------------------------------| | Description: | Reports product version. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESET MODEM TO STORED PROFILE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | PRPn | |--------------+---------------------------------------------| | Example: | PRP3 | |--------------+---------------------------------------------| | Description: | Resets modem to stored profile n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SET OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | PROnnn;aa;bb;cc... | |--------------+---------------------------------------------| | Example: | PRO112;02;01 | |--------------+---------------------------------------------| | Description: | Sets various options. The first number is | | | the first address to set. Following | | | parameters set the addresses, starting with | | | nnn and progressing. In this example, | | | address 112 would be set to 02 and address | | | 113 would be set to 01. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE ACTIVE PROFILE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | PRK | |--------------+---------------------------------------------| | Example: | PRK | |--------------+---------------------------------------------| | Description: | Writes the values for the current profile | | | into the non-volatile RAM. | +------------------------------------------------------------+