MOTOROLA, INC. ============== 3261FAST/3261FAST-SDC/3266FAST/3266FAST-SDC Modem Type Data (synchronous/asynchronous) Maximum Data Rate 28.8Kbps Data Bus External Data Modulation Bell 103A/212A Protocol ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34 Error MNP5, V.42, V.42bis Correction/Compression Motorola Codex +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | RETURN button | BT1 | Leased line out | CN3 | |-------------------+----------+------------------+----------| | DOWN button | BT2 | 120VAC power | CN4 | |-------------------+----------+------------------+----------| | ACROSS button | BT3 | RS-232/422 | CN5 | |-------------------+----------+------------------+----------| | ENTER button | BT4 | Network control | CN6 | | (Talk/Data) | | out | | |-------------------+----------+------------------+----------| | Switched line out | CN1 | Network control | CN7 | | | | in | | |-------------------+----------+------------------+----------| | Line in | CN2 | Power switch | SW1 | +------------------------------------------------------------+ +------------------------------------------------------------+ | ELECTRICAL INTERFACE SELECTION | |------------------------------------------------------------| | Interface | SW2/1 | |-------------------------------+----------------------------| |>> EIA/TIA 232-D | On | |-------------------------------+----------------------------| | ITU-T V.35 | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST/BUSY OUT ON PIN 25 | |------------------------------------------------------------| | Mode | SW2/2 | |----------------------------------------------+-------------| |>> Enable busy out when pin 25 is high | Off | |----------------------------------------------+-------------| | Self test is in progress when pin 25 is high | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | FRONT PANEL CONFIGURATION | |------------------------------------------------------------| | Mode | SW2/3 | |-------------------------------+----------------------------| |>> Front panel enabled | Off | |-------------------------------+----------------------------| | Front panel disabled | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESET MEMORY | |------------------------------------------------------------| | Mode | SW2/4 | |---------------------------------+--------------------------| |>> Normal operation | Off | |---------------------------------+--------------------------| | Reset modem to factory settings | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND SETS | |------------------------------------------------------------| | Mode | SW2/5 | |-------------------------------+----------------------------| |>> Command sets enabled | Off | |-------------------------------+----------------------------| | Command sets disabled | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY CONFIGURED - DO NOT ALTER | |------------------------------------------------------------| | Switch | Position | |-----------------------------+------------------------------| | SW2/6 | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |-------+-------+--------+-----------------------------------| | RD | Red | On | Modem is receiving data | |-------+-------+--------+-----------------------------------| | RD | Red | Off | Modem is not receiving data | |-------+-------+--------+-----------------------------------| | TR | Red | On | DTR signal is high | |-------+-------+--------+-----------------------------------| | TR | Red | Off | DTR signal is low | |-------+-------+--------+-----------------------------------| | RI/OH | Red | On | Switched line is off-hook or is | | | | | ringing | |-------+-------+--------+-----------------------------------| | RI/OH | Red | Off | Switched line is on-hook and is | | | | | not ringing | |-------+-------+--------+-----------------------------------| | TD | Red | On | Modem is transmitting data | |-------+-------+--------+-----------------------------------| | TD | Red | Off | Modem is not transmitting data | |-------+-------+--------+-----------------------------------| | CD | Red | On | Carrier signal detected | |-------+-------+--------+-----------------------------------| | CD | Red | Off | Carrier signal not detected | |-------+-------+--------+-----------------------------------| | RC/NC | Red | On | Modem is under remote or network | | | | | control | |-------+-------+--------+-----------------------------------| | RC/NC | Red | Off | Modem is under local control | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ADAPTIVE RATE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *APn [cmds] | |--------------+---------------------------------------------| | Example: | AT *EC0 *DC1 *AP0 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will | | | automatically adjust its speed according to | | | line conditions. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *AP0 | Adaptive rate disabled. | |--------------+---------------------------------------------| | *AP1 | Adaptive rate enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ANSWER/ORIGINATE MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CAn [cmds] | |--------------+---------------------------------------------| | Example: | AT *CA2 | |--------------+---------------------------------------------| | Description: | Selects whether the modem is in answer or | | | originate mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *CA0 | Modem is in originate mode. | |--------------+---------------------------------------------| | *CA1 | Modem is in answer mode. | |--------------+---------------------------------------------| | *CA2 | Modem is in answer mode only if pin 11 of | | | the serial interface is high. | |--------------+---------------------------------------------| | *CA3 | Modem switches to originate mode after | | | auto-answer. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-ANSWER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *AAn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AA5 S0=3 | |--------------+---------------------------------------------| | Description: | Configures the modem's response to an | | | incoming call. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *AA0 | Modem will not answer incoming call. | |--------------+---------------------------------------------| | *AA1 | Modem will answer incoming call on first | | | ring. | |--------------+---------------------------------------------| | *AA2 | Modem will answer incoming call on second | | | ring. | |--------------+---------------------------------------------| | *AA3 | Modem will answer incoming call on fourth | | | ring. | |--------------+---------------------------------------------| | *AA4 | Modem will answer incoming call on eighth | | | ring. | |--------------+---------------------------------------------| | *AA5 | Modem will answer according to register S0. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-ANSWER - SWITCHED LINE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ASn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AS0 H1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will answer an | | | incoming switched line call while connected | | | over the leased line. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *AS0 | Modem will ignore incoming switched line | | | call. | |--------------+---------------------------------------------| | *AS1 | Modem will disconnect from leased line to | | | answer switched line call. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BLIND DIALING DELAY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *BDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *BD2 S6=3 | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait | | | before it begins dialing when in blind dial | | | mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *BD0 | Modem will wait 2 seconds before dialing. | |--------------+---------------------------------------------| | *BD1 | Modem will wait 4 seconds before dialing. | |--------------+---------------------------------------------| | *BD2 | Modem will wait according to register S6. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUFFER SIZE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *NBn [cmds] | |--------------+---------------------------------------------| | Example: | AT *NB0 | |--------------+---------------------------------------------| | Description: | Selects the modem's transmit/receive buffer | | | size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *NB0 | Normal buffer size. | |--------------+---------------------------------------------| | *NB1 | Small buffer size. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUSY OUT ON TEST MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *LL1 | |--------------+---------------------------------------------| | Description: | Sends busy signal when modem is in a test | | | mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LL0 | Do not send busy signal when modem is in | | | test mode. | |--------------+---------------------------------------------| | *LL1 | Send busy signal when modem is in test | | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *BKn [cmds] | |--------------+---------------------------------------------| | Example: | AT *BK0 | |--------------+---------------------------------------------| | Description: | Configures action of break signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *BK0 | Break empties buffer and is sent | | | immediately. | |--------------+---------------------------------------------| | *BK1 | Break does not empty buffer and is sent | | | immediately. | |--------------+---------------------------------------------| | *BK2 | Break does not empty buffer and is sent in | | | sequence. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK DIAL TONE TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S45=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS45=2 | |--------------+---------------------------------------------| | Default: | 5 | |--------------+---------------------------------------------| | Range: | 0-10 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the length of the dialtone generated | | | by the callback feature to prompt for the | | | password. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK NUMBER SOURCE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZC10 *ZIsnarf | |--------------+---------------------------------------------| | Description: | Configures where the callback function will | | | obtain the number to call. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZC0 | Callback function disabled. | |--------------+---------------------------------------------| | *ZC10 | Callback function will dial the number | | | provided by the remote user. | |--------------+---------------------------------------------| | *ZC12 | Callback function will dial the number | | | stored in the memory location provided by | | | the remote user. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK ONLY MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZRn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZR0 S0=2 | |--------------+---------------------------------------------| | Description: | Sets whether the modem is callback-only. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZR0 | Modem will accept both normal calls and | | | callback calls. | |--------------+---------------------------------------------| | *ZR1 | Modem will only accept callback calls. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZIxxxx | |--------------+---------------------------------------------| | Example: | AT *ZC10 *ZIsnarf | |--------------+---------------------------------------------| | Description: | Sets the callback password to xxxx. The | | | password must not be more than 10 | | | characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK PASSWORD TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S46=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS46=18 | |--------------+---------------------------------------------| | Default: | 12 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the length of time in which the | | | callback password must be entered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK RINGBACK TONE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZSn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZP2 *ZS1 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will generate a | | | ringback tone upon receiving the correct | | | callback password. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZS0 | Modem will not generate ringback tone. | |--------------+---------------------------------------------| | *ZS1 | Modem will generate ringback tone. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK SECURITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZVn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZV1 S0=1 | |--------------+---------------------------------------------| | Description: | Enables security for the callback function. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZV0 | Disables password verification and disables | | | callback mode.. | |--------------+---------------------------------------------| | *ZV1 | Enables password verification by the modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK STORED NUMBER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZC3 *ZIsnarf | |--------------+---------------------------------------------| | Description: | Callback function will dial the number | | | stored in memory location n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK TONES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZPn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZP2 *ZS1 | |--------------+---------------------------------------------| | Description: | Selects which tones the callback function | | | will use to indicate operation. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZP0 | Callback tones disabled. | |--------------+---------------------------------------------| | *ZP1 | Generate dialtone to prompt for password. | |--------------+---------------------------------------------| | *ZP2 | Generate answer tone after password. | |--------------+---------------------------------------------| | *ZP3 | Generate both tones. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALL WAIT TIMER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *TTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *TT5 S7=120 | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem will | | | wait for a call to succeed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *TT0 | Modem will wait for 30 seconds. | |--------------+---------------------------------------------| | *TT1 | Modem will wait for 45 seconds. | |--------------+---------------------------------------------| | *TT2 | Modem will wait for 60 seconds. | |--------------+---------------------------------------------| | *TT3 | Modem will wait for 90 seconds. | |--------------+---------------------------------------------| | *TT4 | Modem will wait for 180 seconds. | |--------------+---------------------------------------------| | *TT5 | Modem will wait according to register S7. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 handshaking | | | and disconnecting. | |--------------+---------------------------------------------| | &C3 | CD follows remote RTS signal. | |--------------+---------------------------------------------| | &C4 | CD forced high except during disconnecting. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CD SIGNAL REACTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *CD2 | |--------------+---------------------------------------------| | Description: | Configures the modem's response to loss of | | | the carrier signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *CD0 | Modem ignores low CD. | |--------------+---------------------------------------------| | *CD1 | Modem will wait for 3 seconds of low CD | | | before disconnecting. | |--------------+---------------------------------------------| | *CD2 | Modem will wait for 7 seconds of low CD | | | before disconnecting. | |--------------+---------------------------------------------| | *CD3 | Modem will wait according to register S10. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT *DCn | |--------------+---------------------------------------------| | Example: | AT *EC0 *DC1 *AP0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DC0 | Data compression disabled. | |--------------+---------------------------------------------| | *DC1 | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MESSAGE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MSn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MS0 | |--------------+---------------------------------------------| | Description: | Selects whether CONNECT message is sent | | | before or after the carrier detect signal | | | is high. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MS0 | CONNECT sent after CD is high. | |--------------+---------------------------------------------| | *MS1 | CONNECT sent before CD is high. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *SMn [cmds] | |--------------+---------------------------------------------| | Example: | AT *SM1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Sets connect mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *SM1 | Direct mode. | |--------------+---------------------------------------------| | *SM0 | Normal mode. | |--------------+---------------------------------------------| | *SM2 | Reliable mode. | |--------------+---------------------------------------------| | *SM3 | Auto-reliable mode. | |--------------+---------------------------------------------| | *SM4 | If modem connects at faster than 1200bps, | | | reliable mode will be used. | | | | | | At 1200bps or slower, normal mode will be | | | used for asynchronous connections and | | | direct mode for synchronous connections. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MNn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MN6 *MX14 *MM11 | |--------------+---------------------------------------------| | Description: | Sets slowest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MN0 | Select 300bps minimum speed. | |--------------+---------------------------------------------| | *MN1 | Select 1200bps minimum speed. | |--------------+---------------------------------------------| | *MN2 | Select 2400bps minimum speed. | |--------------+---------------------------------------------| | *MN3 | Select 4800bps minimum speed. | |--------------+---------------------------------------------| | *MN4 | Select 7200bps minimum speed. | |--------------+---------------------------------------------| | *MN5 | Select 9600bps minimum speed. | |--------------+---------------------------------------------| | *MN6 | Select 12Kbps minimum speed. | |--------------+---------------------------------------------| | *MN7 | Select 14.4Kbps minimum speed. | |--------------+---------------------------------------------| | *MN8 | Select 16.8Kbps minimum speed. | |--------------+---------------------------------------------| | *MN9 | Select 19.2Kbps minimum speed. | |--------------+---------------------------------------------| | *MN10 | Select 21.6Kbps minimum speed. | |--------------+---------------------------------------------| | *MN11 | Select 24Kbps minimum speed. | |--------------+---------------------------------------------| | *MN12 | Select 26.4Kbps minimum speed. | |--------------+---------------------------------------------| | *MN13 | Select 28.8Kbps minimum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MXn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MN6 *MX14 *MM11 | |--------------+---------------------------------------------| | Description: | Sets fastest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MX0 | Select 300bps maximum speed. | |--------------+---------------------------------------------| | *MX1 | Select 1200bps maximum speed. | |--------------+---------------------------------------------| | *MX2 | Select 2400bps maximum speed. | |--------------+---------------------------------------------| | *MX3 | Select 4800bps maximum speed. | |--------------+---------------------------------------------| | *MX4 | Select 7200bps maximum speed. | |--------------+---------------------------------------------| | *MX5 | Select 9600bps maximum speed. | |--------------+---------------------------------------------| | *MX6 | Select 12Kbps maximum speed. | |--------------+---------------------------------------------| | *MX7 | Select 14.4Kbps maximum speed. | |--------------+---------------------------------------------| | *MX8 | Select 16.8Kbps maximum speed. | |--------------+---------------------------------------------| | *MX9 | Select 19.2Kbps maximum speed. | |--------------+---------------------------------------------| | *MX10 | Select 21.6Kbps maximum speed. | |--------------+---------------------------------------------| | *MX11 | Select 24Kbps maximum speed. | |--------------+---------------------------------------------| | *MX12 | Select 26.4Kbps maximum speed. | |--------------+---------------------------------------------| | *MX13 | Select 28.8Kbps maximum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *CT0 | |--------------+---------------------------------------------| | Description: | Selects the function of the CTS signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *CT0 | CTS forced high. | |--------------+---------------------------------------------| | *CT1 | CTS normal. | |--------------+---------------------------------------------| | *CT2 | CTS forced high in command mode, forced low | | | during handshaking and retraining, and | | | follows RTS in data mode. | |--------------+---------------------------------------------| | *CT3 | CTS forced high in asynchronous mode and | | | behaves like *CT2 in synchronous mode. | |--------------+---------------------------------------------| | *CT4 | CTS follows RTS. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS/RTS DELAY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DL1 O | |--------------+---------------------------------------------| | Description: | When CTS is set to follow RTS, sets the | | | delay between the RTS signal going high and | | | CTS following. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DL0 | CTS follows RTS immediately. | |--------------+---------------------------------------------| | *DL1 | CTS follows RTS after 15ms. | |--------------+---------------------------------------------| | *DL2 | CTS follows RTS after 60ms. | |--------------+---------------------------------------------| | *DL3 | CTS follows RTS after 90ms. | |--------------+---------------------------------------------| | *DL4 | CTS follows RTS according to S26. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#> [; cmds] | |--------------+---------------------------------------------| | Example: | AT H1 DT 9W *70, 1(303) 555-1212 | |--------------+---------------------------------------------| | Description: | Dials telephone number according to any | | | modifiers included in the string. | |--------------+---------------------------------------------| | Modifier | Function | |--------------+---------------------------------------------| | DK | Dialing paused for amount of time specified | | | in S8 register. | |--------------+---------------------------------------------| | DP | Pulse dialing enabled. | |--------------+---------------------------------------------| | DR | Dial in answer mode. | |--------------+---------------------------------------------| | DS=n | Number in memory location n dialed. | |--------------+---------------------------------------------| | DT | Tone dialing enabled. | |--------------+---------------------------------------------| | DW | Dialing resumed following dial tone | | | detection. | |--------------+---------------------------------------------| | D, | Dialing paused for amount of time specified | | | in S8 register. | |--------------+---------------------------------------------| | D< | Dialing paused for amount of time specified | | | in S8 register. | |--------------+---------------------------------------------| | D! | Flash function initiated. Modem commanded | | | to go on-hook for specified time. | |--------------+---------------------------------------------| | D@ | Modem waits for a ring-back signal followed | | | by silence up to the time specified in S7 | | | prior to executing the rest of the dial | | | string. | |--------------+---------------------------------------------| | D& | Flash function initiated. Modem commanded | | | to go on-hook for specified time. | |--------------+---------------------------------------------| | D; | Modem returned to idle state after dialing. | | | The semicolon can only be placed at the end | | | of the dial command. | |--------------+---------------------------------------------| | D: | Dialing resumed following dial tone | | | detection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL PAUSE TIME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DPn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DP9 S8=1 | |--------------+---------------------------------------------| | Description: | Sets the time the modem will wait when it | | | encounters a pause symbol in a dial string. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DP0 | Modem will pause for 3 seconds. | |--------------+---------------------------------------------| | *DP1 | Modem will pause for 6 seconds. | |--------------+---------------------------------------------| | *DP2 | Modem will pause for 9 seconds. | |--------------+---------------------------------------------| | *DP3 | Modem will pause for 12 seconds. | |--------------+---------------------------------------------| | *DP4 | Modem will pause according to register S8. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL RESTRICTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ZDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *ZD10 S0=1 | |--------------+---------------------------------------------| | Description: | Sets the restrictions on dial commands. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *ZD0 | Unrestricted dialing. | |--------------+---------------------------------------------| | *ZD1 | Redial and auto-redial disabled. | |--------------+---------------------------------------------| | *ZD2 | Manual dial, redial, and auto-redial | | | disabled; only stored numbers may be | | | dialed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL TONE WAIT TIME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DD9 S7=1 | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait for | | | a dial tone. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DD0 | Modem will wait 2 seconds for dial tone. | |--------------+---------------------------------------------| | *DD1 | Modem will wait 3 seconds for dial tone. | |--------------+---------------------------------------------| | *DD2 | Modem will wait 4 seconds for dial tone. | |--------------+---------------------------------------------| | *DD3 | Modem will wait 6 seconds for dial tone. | |--------------+---------------------------------------------| | *DD4 | Modem will wait 12 seconds for dial tone. | |--------------+---------------------------------------------| | *DD5 | Modem will wait 15 seconds for dial tone. | |--------------+---------------------------------------------| | *DD6 | Modem will wait 20 seconds for dial tone. | |--------------+---------------------------------------------| | *DD7 | Modem will wait 30 seconds for dial tone. | |--------------+---------------------------------------------| | *DD8 | Modem will wait 40 seconds for dial tone. | |--------------+---------------------------------------------| | *DD9 | Modem will wait according to register S7. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL TYPE SELECTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *PTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *PT0 D555-1212 | |--------------+---------------------------------------------| | Description: | Selects which type of dialing will be used | | | as default. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *PT0 | Tone dialing will be used as default. | |--------------+---------------------------------------------| | *PT1 | Pulse dialing will be used as default. | |--------------+---------------------------------------------| | *PT2 | Attempt to use tone dialing; if this fails, | | | use pulse dialing. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL STORED PHONE NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *DSn | |--------------+---------------------------------------------| | Example: | ATM0 *DS5 | |--------------+---------------------------------------------| | Description: | Dials a stored phone number. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT BUFFER MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DBn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DB0 | |--------------+---------------------------------------------| | Description: | Configures when the modem will disconnect | | | if there is data in the transmit or receive | | | buffers. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DB0 | Modem will disconnect immediately. | |--------------+---------------------------------------------| | *DB1 | Modem will disconnect after time in S38 or | | | when buffers have emptied, whichever occurs | | | first. | |--------------+---------------------------------------------| | *DB2 | Modem will wait until buffers have emptied, | | | then disconnect after time in S38. | |--------------+---------------------------------------------| | *DB3 | Modem will disconnect after time in S38. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT SEQUENCE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MD0 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will inform the | | | remote modem before disconnecting. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MD0 | Modem disconnects without signalling the | | | remote modem. | |--------------+---------------------------------------------| | *MD1 | Modem signals the remote modem to | | | disconnect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY STORED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *NDn [cmds] | |--------------+---------------------------------------------| | Example: | AT*CN3,555-1212 *ND | |--------------+---------------------------------------------| | Description: | Displays the phone number in the memory | | | location indicated. If no location is | | | indicated they will all be displayed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MRn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MR0 | |--------------+---------------------------------------------| | Description: | Selects the function of the DSR signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MR0 | DSR normal. | |--------------+---------------------------------------------| | *MR1 | DSR forced high. | |--------------+---------------------------------------------| | *MR2 | DSR follows DTR. | |--------------+---------------------------------------------| | *MR3 | DSR normal, except forced low on | | | disconnect. | |--------------+---------------------------------------------| | *MR4 | DSR follows DTR, except forced low on | | | disconnect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR CHANGE DELAY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DTn [cmds] | |--------------+---------------------------------------------| | Example: | AT*DT0 S25=2 | |--------------+---------------------------------------------| | Description: | Sets maximum time a change in the DTR | | | signal will be ignored. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DT0 | DTR will be ignored according to register | | | S25. | |--------------+---------------------------------------------| | *DT1 | DTR will be ignored for 10 seconds. | |--------------+---------------------------------------------| | *DT2 | DTR will be ignored for 15 seconds. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR DIALING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DAn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DA1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Sets the DTR dialing function to dial the | | | number at memory location n. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Dn [cmds] | |--------------+---------------------------------------------| | Example: | AT &D1 | |--------------+---------------------------------------------| | Description: | Configures the behavior of the Data | | | Terminal Ready signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &D0 | DTR forced high. | |--------------+---------------------------------------------| | &D1 | Modem will enter command mode on low DTR. | |--------------+---------------------------------------------| | &D2 | Modem will disconnect on low DTR. | |--------------+---------------------------------------------| | &D3 | Modem will disconnect and reset on low DTR. | |--------------+---------------------------------------------| | &D4 | DTR dialing enabled. | |--------------+---------------------------------------------| | &D5 | On high DTR, modem will answer an incoming | | | call, or enable DTR dialing if no call is | | | detected. Modem will disconnect on low DTR. | |--------------+---------------------------------------------| | &D6 | On low DTR, modem will disconnect and will | | | not dial or answer an incoming call until | | | DTR is high again. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION IDENTIFICATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *SLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *EC1 *SL1 | |--------------+---------------------------------------------| | Description: | Selects what type of error correction the | | | modem will identify itself with to remote | | | modems. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *SL0 | Modem will identify itself as MNP5 modem. | |--------------+---------------------------------------------| | *SL1 | Modem will identify itself as Motorola | | | Codex modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *ECn [cmds] | |--------------+---------------------------------------------| | Example: | AT *EC0 *DC1 *AP0 | |--------------+---------------------------------------------| | Description: | Selects active error correction protocols. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *EC0 | MNP and LAPM enabled. | |--------------+---------------------------------------------| | *EC1 | LAPM only enabled. | |--------------+---------------------------------------------| | *EC2 | MNP only enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTERNAL INITIALIZATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *OPn [cmds] | |--------------+---------------------------------------------| | Example: | AT *OC1 *OP14 | |--------------+---------------------------------------------| | Description: | Selects the profiles for the external | | | initialization function. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *OP0 | External initialization disabled. | |--------------+---------------------------------------------| | *OP1 | Select profile 2 on low signal, and profile | | | 1 on high signal. | |--------------+---------------------------------------------| | *OP2 | Select profile 3 on low signal, and profile | | | 1 on high signal. | |--------------+---------------------------------------------| | *OP3 | Select profile 4 on low signal, and profile | | | 1 on high signal. | |--------------+---------------------------------------------| | *OP4 | Select profile 1 on low signal, and profile | | | 2 on high signal. | |--------------+---------------------------------------------| | *OP5 | Select profile 3 on low signal, and profile | | | 2 on high signal. | |--------------+---------------------------------------------| | *OP6 | Select profile 4 on low signal, and profile | | | 2 on high signal. | |--------------+---------------------------------------------| | *OP7 | Select profile 1 on low signal, and profile | | | 3 on high signal. | |--------------+---------------------------------------------| | *OP8 | Select profile 2 on low signal, and profile | | | 3 on high signal. | |--------------+---------------------------------------------| | *OP9 | Select profile 4 on low signal, and profile | | | 3 on high signal. | |--------------+---------------------------------------------| | *OP10 | Select profile 1 on low signal, and profile | | | 4 on high signal. | |--------------+---------------------------------------------| | *OP11 | Select profile 2 on low signal, and profile | | | 4 on high signal. | |--------------+---------------------------------------------| | *OP12 | Select profile 3 on low signal, and profile | | | 4 on high signal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTERNAL INITIALIZATION PIN SELECT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *OCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *OC1 *OP14 | |--------------+---------------------------------------------| | Description: | Selects which pin will control the external | | | initialization function. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *OC0 | External initialization controlled by pin | | | 14. | |--------------+---------------------------------------------| | *OC1 | External initialization controlled by pin | | | 20. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MFn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MF1 *DF1 *FL5 | |--------------+---------------------------------------------| | Description: | Selects flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MF0 | Flow control disabled. | |--------------+---------------------------------------------| | *MF1 | Flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *FLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MF1 *DF1 *FL5 | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *FL0 | Flow control disabled. | |--------------+---------------------------------------------| | *FL1 | XON/XOFF flow control enabled. | |--------------+---------------------------------------------| | *FL2 | CTS/DTR flow control enabled. | |--------------+---------------------------------------------| | *FL3 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | *FL4 | XON/XOFF pass-through flow control enabled. | |--------------+---------------------------------------------| | *FL5 | Synchronous transmit clock signal flow | | | control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANDSHAKE OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *FCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *FC0 | |--------------+---------------------------------------------| | Description: | Disables various parts of the handshake | | | sequence. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *FC0 | Normal handshake sequence. | |--------------+---------------------------------------------| | *FC1 | Billing delay removed and auto-baud tone | | | shortened by 1 second. | |--------------+---------------------------------------------| | *FC2 | *FC1 plus training time is shortened by 2 | | | seconds in V.32 and V.32bis modes. | |--------------+---------------------------------------------| | *FC3 | *FC2 plus negotiation of error correction | | | and compression is removed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *SIn [cmds] | |--------------+---------------------------------------------| | Example: | AT *SI5 S30=40 | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *SI0 | Inactivity timer disabled. | |--------------+---------------------------------------------| | *SI1 | Modem will disconnect after 3 minutes of | | | inactivity. | |--------------+---------------------------------------------| | *SI2 | Modem will disconnect after 10 minutes of | | | inactivity. | |--------------+---------------------------------------------| | *SI3 | Modem will disconnect after 20 minutes of | | | inactivity. | |--------------+---------------------------------------------| | *SI4 | Modem will disconnect after 30 minutes of | | | inactivity. | |--------------+---------------------------------------------| | *SI5 | Modem will disconnect according to register | | | S30. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP - HOLD BACKUP CONNECTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *HDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *HD2 | |--------------+---------------------------------------------| | Description: | Configures modem to hold switched line | | | connection while testing the leased line. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *HD0 | Do not hold connection. | |--------------+---------------------------------------------| | *HD1 | Hold connection for 1 minute. | |--------------+---------------------------------------------| | *HD2 | Hold connection for 2 minutes. | |--------------+---------------------------------------------| | *HD3 | Hold connection for 3 minutes. | |--------------+---------------------------------------------| | *HD4 | Hold connection for 4 minutes. | |--------------+---------------------------------------------| | *HD5 | Hold connection for 5 minutes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP - RESTORAL OPTIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *REn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RE0 D555-1212 | |--------------+---------------------------------------------| | Description: | Selects what will initiate the restoral of | | | a leased line connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RE0 | Restoral disabled. | |--------------+---------------------------------------------| | *RE1 | Modem will restore connection only when the | | | Talk/Data button is pressed. | |--------------+---------------------------------------------| | *RE2 | Modem will restore connection when DTR | | | signal goes high. | |--------------+---------------------------------------------| | *RE3 | Modem will restore connection when ITU-T | | | circuit 116 goes high. | |--------------+---------------------------------------------| | *RE4 | Modem will restore connection | | | automatically. | |--------------+---------------------------------------------| | *RE5 | Modem will enable command set when DTR | | | signal goes high. | |--------------+---------------------------------------------| | *RE6 | Modem will enable command set when ITU-T | | | circuit 116 goes high. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP RETURN TIME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LEn [cmds] | |--------------+---------------------------------------------| | Example: | AT*LE1 | |--------------+---------------------------------------------| | Description: | Sets the amount of time until the modem | | | will reconnect to the leased line | | | connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LE0 | Modem will reconnect when the Talk/Data | | | button is pressed. | |--------------+---------------------------------------------| | *LE1 | Modem will reconnect after 15 minutes. | |--------------+---------------------------------------------| | *LE2 | Modem will reconnect after 30 minutes. | |--------------+---------------------------------------------| | *LE3 | Modem will reconnect after 1 hour. | |--------------+---------------------------------------------| | *LE4 | Modem will reconnect after 2 hours. | |--------------+---------------------------------------------| | *LE5 | Modem will reconnect after 4 hours. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE BACKUP THRESHHOLD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DIn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DI1 O | |--------------+---------------------------------------------| | Description: | Sets the number of retrains at which the | | | modem will initiate a leased-line backup | | | procedure. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DI0 | Backup initiated after 3 retrains in 5 | | | minutes at high-speed connection, or 6 | | | retrains in 5 minutes for low-speed | | | connection. | |--------------+---------------------------------------------| | *DI1 | Backup initiated after 6 retrains in 10 | | | minutes at high-speed connection, or 12 | | | retrains in 10 minutes for low-speed | | | connection. | |--------------+---------------------------------------------| | *DI2 | Backup initiated after 5 retrains in 5 | | | minutes at high-speed connection, or 10 | | | retrains in 5 minutes for low-speed | | | connection. | |--------------+---------------------------------------------| | *DI3 | Backup initiated after 10 retrains in 10 | | | minutes at high-speed connection, or 20 | | | retrains in 10 minutes for low-speed | | | connection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINK STORED NUMBERS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LNm,n [cmds] | |--------------+---------------------------------------------| | Example: | AT *LN1,2 | |--------------+---------------------------------------------| | Description: | Links two stored phone numbers in sequence | | | so that if one fails, the next one will be | | | dialed. If the second number is omitted, | | | the link from the first number will be | | | cleared. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DEn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DE16 *OS0 *SC1 | |--------------+---------------------------------------------| | Description: | Sets serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DE2 | Sets 300bps speed. | |--------------+---------------------------------------------| | *DE3 | Sets 600bps speed. | |--------------+---------------------------------------------| | *DE4 | Sets 1200bps speed. | |--------------+---------------------------------------------| | *DE5 | Sets 2400bps speed. | |--------------+---------------------------------------------| | *DE6 | Sets 4800bps speed. | |--------------+---------------------------------------------| | *DE7 | Sets 7200bps speed. | |--------------+---------------------------------------------| | *DE8 | Sets 9600bps speed. | |--------------+---------------------------------------------| | *DE9 | Sets 12Kbps speed. | |--------------+---------------------------------------------| | *DE10 | Sets 14.4Kbps speed. | |--------------+---------------------------------------------| | *DE11 | Sets 16.8Kbps speed. | |--------------+---------------------------------------------| | *DE12 | Sets 19.2Kbps speed. | |--------------+---------------------------------------------| | *DE13 | Sets 21.6Kbps speed. | |--------------+---------------------------------------------| | *DE14 | Sets 24Kbps speed. | |--------------+---------------------------------------------| | *DE15 | Sets 38.4Kbps speed. | |--------------+---------------------------------------------| | *DE16 | Sets 57.6Kbps speed. | |--------------+---------------------------------------------| | *DE17 | Sets 64Kbps speed. | |--------------+---------------------------------------------| | *DE18 | Sets 72Kbps speed. | |--------------+---------------------------------------------| | *DE19 | Sets 76.8Kbps speed. | |--------------+---------------------------------------------| | *DE20 | Sets 96Kbps speed. | |--------------+---------------------------------------------| | *DE21 | Sets 115.2Kbps speed. | |--------------+---------------------------------------------| | *DE22 | Sets speed automatically. | |--------------+---------------------------------------------| | *DE23 | Sets 48Kbps speed. | |--------------+---------------------------------------------| | *DE24 | Sets 56Kbps speed. | |--------------+---------------------------------------------| | *DE25 | Sets 26.4Kbps speed. | |--------------+---------------------------------------------| | *DE26 | Sets 28.8Kbps speed. | |--------------+---------------------------------------------| | *DE28 | Sets 128Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED ADJUST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *OSn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DE16 *OS0 *SC 1 | |--------------+---------------------------------------------| | Description: | Sets the maximum amount to adjust the local | | | serial port speed by. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *OS0 | Adjust local serial port speed by no more | | | than -1%. | |--------------+---------------------------------------------| | *OS1 | Adjust local serial port speed by no more | | | than -2.5%. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *SCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DE16 *OS0 *SC1 | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *SC0 | Serial speed follows connect speed. | |--------------+---------------------------------------------| | *SC1 | Serial speed locked. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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] *LDn [cmds] | |--------------+---------------------------------------------| | Example: | AT*LD0 | |--------------+---------------------------------------------| | Description: | Controls whether the modem will perform a | | | remote digital loopback test when pin 21 | | | goes high. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LD0 | Pin 21 has no function. | |--------------+---------------------------------------------| | *LD1 | Pin 21 going high causes the modem to | | | perform remote digital loopback test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | NETWORK OPTIMIZATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *NCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *NC0 | |--------------+---------------------------------------------| | Description: | Selects options to make the modem operate | | | more efficiently when using the network | | | control option. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *NC0 | Normal operation. | |--------------+---------------------------------------------| | *NC1 | Level 1 optimization; limits serial port | | | rate to 21.6Kbps. | |--------------+---------------------------------------------| | *NC2 | Level 2 optimization; limits serial port | | | rate to 19.2Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | NRZI INTERFACE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DFn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MF1 *DF1 *FL5 | |--------------+---------------------------------------------| | Description: | Configures DTE non return to zero | | | interface. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *DF0 | NRZ command and connect modes. | |--------------+---------------------------------------------| | *DF1 | NRZI command and connect modes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RPn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RP0 *SM1 | |--------------+---------------------------------------------| | Description: | Sets the parity of the modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RP0 | Parity determined by V.25bis settings. | |--------------+---------------------------------------------| | *RP1 | Even parity. | |--------------+---------------------------------------------| | *RP2 | Odd parity. | |--------------+---------------------------------------------| | *RP3 | MARK parity. | |--------------+---------------------------------------------| | *RP4 | SPACE parity. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LSn [cmds] | |--------------+---------------------------------------------| | Example: | AT *LS1 | |--------------+---------------------------------------------| | Description: | Selects the protocol for low-speed data | | | calls. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LS0 | Bell protocols. | |--------------+---------------------------------------------| | *LS1 | ITU-T protocols. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *MMn [cmds] | |--------------+---------------------------------------------| | Example: | AT *MN6 *MX14 *MM11 | |--------------+---------------------------------------------| | Description: | Selects the current protocol. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *MM0 | Selects V.32bis and below. | |--------------+---------------------------------------------| | *MM1 | Selects V.32 and below. | |--------------+---------------------------------------------| | *MM2 | Selects V.32bis and V.32. | |--------------+---------------------------------------------| | *MM3 | Selects V.32 only. | |--------------+---------------------------------------------| | *MM4 | Selects V.22bis only. | |--------------+---------------------------------------------| | *MM5 | Selects Bell 212 only. | |--------------+---------------------------------------------| | *MM6 | Selects Bell 103 only. | |--------------+---------------------------------------------| | *MM7 | Selects V.21 only. | |--------------+---------------------------------------------| | *MM10 | Selects all protocols. | |--------------+---------------------------------------------| | *MM11 | Selects V.34 only. | |--------------+---------------------------------------------| | *MM12 | Selects non-TCM V.32 only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RECEIVE LEVEL COMPENSATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LCn [cmds] | |--------------+---------------------------------------------| | Example: | AT*LC1 | |--------------+---------------------------------------------| | Description: | Allows the modem to compensate for lossy | | | line conditions. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LC0 | Compensation disabled. | |--------------+---------------------------------------------| | *LC1 | Compensation enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *DRn [cmds] | |--------------+---------------------------------------------| | Example: | AT *DR20 DT1 (303) 443-3388 | |--------------+---------------------------------------------| | Description: | Sets the number of times the modem will | | | attempt to redial a number. A value of 0 | | | will disable redial. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL LAST NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *RDn | |--------------+---------------------------------------------| | Example: | AT *RD20 | |--------------+---------------------------------------------| | Description: | Redials last number dialed the number of | | | times specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RC0 D555-1212 | |--------------+---------------------------------------------| | Description: | Initiates and ends remote configuration | | | sessions. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RC0 | Quits the current remote configuration | | | session and saves changes. | |--------------+---------------------------------------------| | *RC1 | Quits the current remote configuration | | | session without saving. | |--------------+---------------------------------------------| | *RC2 | Attempts to initiate a remote configuration | | | session. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONFIGURATION PERMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RAn [cmds] | |--------------+---------------------------------------------| | Example: | AT *RA0 D555-1212 | |--------------+---------------------------------------------| | Description: | Selects whether remote modems may configure | | | the local modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RA0 | Remote configuration requests will be | | | denied. | |--------------+---------------------------------------------| | *RA1 | Remote configuration requests will be | | | allowed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE RTS/CD SIGNALING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *SRn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 *RS1 *SR1 | |--------------+---------------------------------------------| | Description: | Selects what type of remote RTS/CD | | | signaling the modem will use. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *SR0 | Modem will use Motorola Codex signaling. | |--------------+---------------------------------------------| | *SR1 | Modem will use ITU-T V.13 signaling. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRAIN SENSITIVITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RTn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 *RT1 | |--------------+---------------------------------------------| | Description: | Sets how poor line conditions must be | | | before the modem will initiate a retrain. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RT0 | Modem will not initiate retrain. | |--------------+---------------------------------------------| | *RT1 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-4 for eight seconds, | | | or for one second in V.22bis mode. | |--------------+---------------------------------------------| | *RT2 | Modem will initiate retrain when the Bit | | | Error Rate exceeds 10-3 for eight seconds, | | | or for one second in V.22bis mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &In [cmds] | |--------------+---------------------------------------------| | Example: | AT &I1 &W | |--------------+---------------------------------------------| | Description: | Displays modem properties. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &I0 | Reports modem firmware revision. | |--------------+---------------------------------------------| | &I1 | Reports factory product code. | |--------------+---------------------------------------------| | &I2 | Reports modem country code. | |--------------+---------------------------------------------| | &I3 | Reports product code. | |--------------+---------------------------------------------| | &I4 | Reports network address. | |--------------+---------------------------------------------| | &I5 | Reports serial number. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION AND CONFIGURATION PROFILE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &Vn [cmds] | |--------------+---------------------------------------------| | Example: | AT &V0 | |--------------+---------------------------------------------| | Description: | Reports active configuration profile and | | | other information. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &V0 | Report active configuration profile, | | | connection status, and internal modem | | | information. | |--------------+---------------------------------------------| | &V1 | Report active configuration profile. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE - DTE/DCE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CMn [cmds] | |--------------+---------------------------------------------| | Example: | AT X4 *CM0 | |--------------+---------------------------------------------| | Description: | Selects whether modem will display DTE or | | | DCE speed in the result code. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *CM0 | Modem will display DTE speed. | |--------------+---------------------------------------------| | *CM1 | Modem will display DCE speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE - RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *XCn [cmds] | |--------------+---------------------------------------------| | Example: | AT *XC0 | |--------------+---------------------------------------------| | Description: | Configures result codes for reliable mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *XC0 | Reliable mode result codes disabled. | |--------------+---------------------------------------------| | *XC1 | Short reliable mode result codes. | |--------------+---------------------------------------------| | *XC2 | Long reliable mode result codes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *RSn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 *RS1 *SR1 | |--------------+---------------------------------------------| | Description: | Configures the behavior of the Ready to | | | Send signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *RS0 | RTS normal. | |--------------+---------------------------------------------| | *RS1 | RTS forced high. | |--------------+---------------------------------------------| | *RS2 | RTS follows remote CD signal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SDC MODE WAIT FOR FRAME | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *TDn [cmds] | |--------------+---------------------------------------------| | Example: | AT *TD0 | |--------------+---------------------------------------------| | Description: | Selects whether the modem will wait for the | | | end of a frame it is receiving before | | | transmitting. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *TD0 | Modem will wait for end of frame. | |--------------+---------------------------------------------| | *TD1 | Modem will begin transmission before the | | | end of a frame by using the clock signal. | |--------------+---------------------------------------------| | *TD2 | Modem will begin transmission before the | | | end of a frame by using a calculated time | | | delay. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SETUP PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *PWxxxx/yyyy [cmds] | |--------------+---------------------------------------------| | Example: | AT *PWMicroHouse/FuBaR *PE0 *PF | |--------------+---------------------------------------------| | Description: | Changes the modem's password. xxxx | | | represents the old password, and yyyy | | | represents the new. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SETUP PASSWORD ENABLE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *PEn [cmds] | |--------------+---------------------------------------------| | Example: | AT *PWMicroHouse/FuBaR *PE0 *PF | |--------------+---------------------------------------------| | Description: | Enables the password function to lock the | | | modem's settings. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *PE0 | Setup password function disabled. | |--------------+---------------------------------------------| | *PE1 | Setup password function enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SETUP PASSWORD LOCK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *PF [cmds] | |--------------+---------------------------------------------| | Example: | AT *PWMicroHouse/FuBaR *PE0 *PF | |--------------+---------------------------------------------| | Description: | Locks the modem's settings. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SETUP PASSWORD UNLOCK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *PNxxxx [cmds] | |--------------+---------------------------------------------| | Example: | AT *PNFuBaR | |--------------+---------------------------------------------| | Description: | Unocks the modem's settings. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE PHONE NUMBER IN NVRAM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *CNn,<#> | |--------------+---------------------------------------------| | Example: | AT*CN3,555-1212 *ND | |--------------+---------------------------------------------| | Description: | Stores a phone number in the modem's | | | memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST/BUSY OUT ON PIN 25 | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *LTn [cmds] | |--------------+---------------------------------------------| | Example: | AT *LT0 | |--------------+---------------------------------------------| | Description: | Configures pin 25 for testing or busy out. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *LT0 | Enable busy out when pin 25 is high. | |--------------+---------------------------------------------| | *LT1 | Self test is in progress when pin 25 is | | | high. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TOUCH-TONE LENGTH | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] *TLn [cmds] | |--------------+---------------------------------------------| | Example: | AT *TL0 | |--------------+---------------------------------------------| | Description: | Determines how long the modem will dial a | | | touch-tone digit. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *TL0 | Modem will dial each digit for 72ms. | |--------------+---------------------------------------------| | *TL1 | Modem will dial according to register S11. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 NEGOTIATION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *AYn [cmds] | |--------------+---------------------------------------------| | Example: | AT *AY0 H1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects how the modem negotiates V.32 | | | modulation during handshaking. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | *AY0 | If V.32 tone is not detected during | | | answer-back tone, modem will negotiate down | | | to V.22bis. | |--------------+---------------------------------------------| | *AY1 | Modem will continue attempting to negotiate | | | V.32 after answer-back tone. | +------------------------------------------------------------+