3COM CORPORATION ================ SPORTSTER VI 28.8 EXT Card Type Fax, Modem (asynchronous), Voice Chip Set U.S. Robotics I/O Options Speakerphone, Voice-mail, Voice View Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Class I & II Data Modulation Bell 103/212A Protocol ITU-T V.21, V.22, V.22bis, V.23, V.25, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation Unidentified Protocol Error MNP5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | DC power | CN1 | RS-232/422 | CN5 | |---------------------+---------+---------------------+------| | Line in | CN2 | Power switch | SW1 | |---------------------+---------+---------------------+------| | Line out | CN3 | Volume | R1 | |---------------------+---------+---------------------+------| | Speaker out | CN4 | Built-in microphone | M1 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |---------+-------+----------+-------------------------------| | AA | Red | On | Auto-answer enabled | |---------+-------+----------+-------------------------------| | AA | Red | Off | Auto-answer disabled | |---------+-------+----------+-------------------------------| | AA | Red | Blinking | Phone is ringing | |---------+-------+----------+-------------------------------| | CD | Red | On | Carrier signal detected or CD | | | | | forced high | |---------+-------+----------+-------------------------------| | CD | Red | Off | Carrier signal not detected | |---------+-------+----------+-------------------------------| | RD | Red | Blinking | Modem is receiving data | |---------+-------+----------+-------------------------------| | RD | Red | Off | Modem is not receiving data | |---------+-------+----------+-------------------------------| | SD | Red | Blinking | Modem is transmitting data | |---------+-------+----------+-------------------------------| | SD | Red | Off | Modem is not transmitting | | | | | data | |---------+-------+----------+-------------------------------| | TR | Red | On | DTR signal is high | |---------+-------+----------+-------------------------------| | TR | Red | Off | DTR signal is low | |---------+-------+----------+-------------------------------| | CS | Red | On | CTS signal is high | |---------+-------+----------+-------------------------------| | CS | Red | Off | CTS signal is low | |---------+-------+----------+-------------------------------| | ARQ/FAX | Red | On | Error correction activated | |---------+-------+----------+-------------------------------| | ARQ/FAX | Red | Off | Error correction disabled | |---------+-------+----------+-------------------------------| | ARQ/FAX | Red | Blinking | Retransmitting data to remote | | | | | or connected in FAX mode | |---------+-------+----------+-------------------------------| | OH | Red | On | Modem is off-hook | |---------+-------+----------+-------------------------------| | OH | Red | Off | Modem is on-hook | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ABORT | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | Any key | |--------------+---------------------------------------------| | Description: | Aborts answering/originating a call; modem | | | hangs up. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ANSWER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] A | |--------------+---------------------------------------------| | Description: | Enables manual answer mode, the modem goes | | | off-hook; pressing any key will abort. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ANSWER SEQUENCE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Bn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the answer sequence the modem will | | | use | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i B0 | ITU-T answer sequence enabled | |--------------+---------------------------------------------| | B1 | Bell answer sequence enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | ATTENTION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] | |--------------+---------------------------------------------| | Description: | Tells the modem that a command follows or | | | use alone to test OK result code | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S13 | |------------------------------------------------------------| | Format | AT [cmds] S13=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-89 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls DTR reset, DTR dialing, reset | | | dialing, and MNP3. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | DTR normal | | | | | | | 1 | Reset on low DTR | |------+-------+---------------------------------------------| | 1, 2 | i 00 | Not used | |------+-------+---------------------------------------------| | 3 | i 0 | DTR dialing disabled | | | | | | | 1 | DTR dialing enabled | |------+-------+---------------------------------------------| | 4 | i 0 | Reset dialing disabled | | | | | | | 1 | Reset dialing enabled, dials number at | | | | position 0 in NVRAM. | |------+-------+---------------------------------------------| | 5 | i 0 | Not used | |------+-------+---------------------------------------------| | 6 | i 0 | MNP 3 enabled | | | | | | | 1 | MNP 3 disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S15 | |------------------------------------------------------------| | Format | AT [cmds] S15=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-56 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls non-error-correcting mode buffer, | | | MNP4, and BS/DEL switch. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 - | i 0 | Not used | | 2 | | | |------+-------+---------------------------------------------| | 3 | i 0 | Non-error-correcting mode transmit buffer | | | | set to 1.5KB | | | 1 | | | | | Non-error-correcting mode transmit buffer | | | | set to 128 bytes | |------+-------+---------------------------------------------| | 4 | i 0 | MNP 4 enabled | | | | | | | 1 | MNP 4 disabled | |------+-------+---------------------------------------------| | 5 | i 0 | Use backspace key for delete disabled | | | | | | | 1 | Use backspace key for delete enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-191 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls V.21, V.32 encoding and | | | modulation, V.42 answer tone and handshake, | | | and 9600 result codes. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | V.21 disabled | | | | | | | 1 | V.21 enabled | |------+-------+---------------------------------------------| | 1 | i 0 | V.32 non-trellis coding disabled | | | | | | | 1 | V.32 non-trellis coding enabled | |------+-------+---------------------------------------------| | 2 | i 0 | V.32 modulation enabled | | | | | | | 1 | V.32 modulation disabled | |------+-------+---------------------------------------------| | 3 | i 0 | 2100Hz answer tone enabled | | | | | | | 1 | 2100Hz answer tone disabled | |------+-------+---------------------------------------------| | 5, 4 | i 00 | V.42 detect, LAPM and MNP enabled | | | | | | | 01 | V.42 detect and LAPM enabled, and MNP | | | | disabled | | | 10 | | | | | MNP enabled | | | 11 | | | | | LAPM enabled | |------+-------+---------------------------------------------| | 6 | i 0 | Not used | |------+-------+---------------------------------------------| | 7 | i 0 | Actual result codes displayed | | | | | | | 1 | Force 9600 result codes | +------------------------------------------------------------+ +------------------------------------------------------------+ | BAUD RATE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S54=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls baud rate | |------------------------------------------------------------| | Note: For 28.8 models | |------------------------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | 2400 baud rate enabled | | | | | | | 1 | 2400 baud rate disabled | |------+-------+---------------------------------------------| | 1 | i 0 | 2743 baud rate enabled | | | | | | | 1 | 2743 baud rate disabled | |------+-------+---------------------------------------------| | 2 | i 0 | 2800 baud rate enabled | | | | | | | 1 | 2800 baud rate disabled | |------+-------+---------------------------------------------| | 3 | i 0 | 3000 baud rate enabled | | | | | | | 1 | 3000 baud rate disabled | |------+-------+---------------------------------------------| | 4 | i 0 | 3200 baud rate enabled | | | | | | | 1 | 3200 baud rate disabled | |------+-------+---------------------------------------------| | 5 | i 0 | 3429 baud rate enabled | | | | | | | 1 | 3429 baud rate disabled | |------+-------+---------------------------------------------| | 6 | i 0 | Call indicate during V.34 operation enabled | | | | | | | 1 | Call indicate during V.34 operation | | | | disabled | |------+-------+---------------------------------------------| | 7 | i 0 | V.8 during V.34 operation enabled | | | | | | | 1 | V.8 during V.34 operation disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S56 | |------------------------------------------------------------| | Format: | AT [cmds] S56=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls non-linear coding, TX level | | | deviation, pre-emphasis, pre-coding, | | | shaping, V.34, and V.FC | |------------------------------------------------------------| | Note: For 28.8 models | |------------------------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Non linear coding enabled | | | | | | | 1 | Non linear coding disabled | |------+-------+---------------------------------------------| | 1 | i 0 | TX level deviation enabled | | | | | | | 1 | TX level deviation disabled | |------+-------+---------------------------------------------| | 2 | i 0 | Pre-emphasis enabled | | | | | | | 1 | Pre-emphasis disabled | |------+-------+---------------------------------------------| | 3 | i 0 | Pre-coding enabled | | | | | | | 1 | Pre-coding disabled | |------+-------+---------------------------------------------| | 4 | i 0 | Shaping enabled | | | | | | | 1 | Shaping disabled | |------+-------+---------------------------------------------| | 5 | i 0 | Not used | |------+-------+---------------------------------------------| | 6 | i 0 | V.34 enabled | | | | | | | 1 | V.34 disabled | |------+-------+---------------------------------------------| | 7 | i 0 | V.FC enabled | | | | | | | 1 | V.FC disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S21=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | .01 second | |--------------+---------------------------------------------| | Description: | Sets the length of error control mode | | | breaks sent from DCE to DTE. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Yn [cmds] | |--------------+---------------------------------------------| | Description: | Configures action of break signal | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &Y0 | Empty buffer only | |--------------+---------------------------------------------| | i &Y1 | Empties buffer and break is sent | | | immediately | |--------------+---------------------------------------------| | &Y2 | Do not empty buffer and break is sent | | | immediately | |--------------+---------------------------------------------| | &Y3 | Do not empty buffer or send break | +------------------------------------------------------------+ +------------------------------------------------------------+ | CARRIER DETECT (CD) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Description: | Controls the CD signal | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &C0 | Modem does not respond to CD signal | |--------------+---------------------------------------------| | i &C1 | CD signal normal | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Kn [cmds] | |--------------+---------------------------------------------| | Description: | Selects data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &K0 | Data compression disabled | |--------------+---------------------------------------------| | i &K1 | Auto enabled/disable data compression | |--------------+---------------------------------------------| | &K2 | Data compression enabled | |--------------+---------------------------------------------| | &K3 | MNP5 data compression disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION AND ERROR CORRECTION | |------------------------------------------------------------| | Format | AT [cmds] S51=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-7 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects compression and error correction | | | for specific modulations | |------------------------------------------------------------| | Note: For 28.8 models | |------------------------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | MNP/V.42 disabled during V.22 operation | | | | | | | 1 | MNP/V.42 disabled during V.22 operation | |------+-------+---------------------------------------------| | 1 | i 0 | MNP/V.42 disabled during V.22bis operation | | | | | | | 1 | MNP/V.42 disabled during V.22bis operation | |------+-------+---------------------------------------------| | 2 | i 0 | MNP/V.42 disabled during V.32bis operation | | | | | | | 1 | MNP/V.42 disabled during V.32bis operation | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Un [cmds] | |--------------+---------------------------------------------| | Description: | Sets minimum required connection speed | |------------------------------------------------------------| | Note: 16.8 - 28.8bps for 28.8 models | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &U0 | Variable | |--------------+---------------------------------------------| | &U1 | 300bps | |--------------+---------------------------------------------| | &U2 | 1200bps | |--------------+---------------------------------------------| | &U3 | 2400bps | |--------------+---------------------------------------------| | &U4 | 4800bps | |--------------+---------------------------------------------| | &U5 | 7200bps | |--------------+---------------------------------------------| | &U6 | 9600bps | |--------------+---------------------------------------------| | &U7 | 12Kbps | |--------------+---------------------------------------------| | &U8 | 14.4Kbps | |--------------+---------------------------------------------| | &U9 | 16.8Kbps | |--------------+---------------------------------------------| | &U10 | 19.2Kbps | |--------------+---------------------------------------------| | &U11 | 21.6Kbps | |--------------+---------------------------------------------| | &U12 | 24Kbps | |--------------+---------------------------------------------| | &U13 | 26.4Kbps | |--------------+---------------------------------------------| | &U14 | 28.8Kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets maximum required connection speed, | | | modem will hang up if it cannot connect. | |------------------------------------------------------------| | Note: 16.8 - 28.8bps for 28.8 models | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &N0 | Variable | |--------------+---------------------------------------------| | &N1 | 300bps | |--------------+---------------------------------------------| | &N2 | 1200bps | |--------------+---------------------------------------------| | &N3 | 2400bps | |--------------+---------------------------------------------| | &N4 | 4800bps | |--------------+---------------------------------------------| | &N5 | 7200bps | |--------------+---------------------------------------------| | &N6 | 9600bps | |--------------+---------------------------------------------| | &N7 | 12Kbps | |--------------+---------------------------------------------| | &N8 | 14.4Kbps | |--------------+---------------------------------------------| | &N9 | 16.8Kbps | |--------------+---------------------------------------------| | &N10 | 19.2Kbps | |--------------+---------------------------------------------| | &N11 | 21.6Kbps | |--------------+---------------------------------------------| | &N12 | 24Kbps | |--------------+---------------------------------------------| | &N13 | 26.4Kbps | |--------------+---------------------------------------------| | &N14 | 28.8Kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA SET READY (DSR) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Sn [cmds] | |--------------+---------------------------------------------| | Description: | Selects DSR options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &S0 | DSR forced high | |--------------+---------------------------------------------| | &S1 | DSR controlled by modem | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA TERMINAL READY (DTR) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Dn [cmds] | |--------------+---------------------------------------------| | Description: | Selects modem response to DTR | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &D0 | Modem does not respond to DTR | |--------------+---------------------------------------------| | &D1 | Modem goes to command mode after DTR | | | toggles | |--------------+---------------------------------------------| | i &D2 | Modem uses DTR as normal | |--------------+---------------------------------------------| | &D3 | Modem is initialized after DTR goes off | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#> [cmds] | |--------------+---------------------------------------------| | Example: | ATDT 443-3388,,,1111; | |--------------+---------------------------------------------| | Description: | Dials telephone number according to any | | | modifiers included in the string | |--------------+---------------------------------------------| | Note: | Any combination of modifiers can be used to | | | produce the desired dial functions in | | | sequence. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i P | Pulse dialing enabled | |--------------+---------------------------------------------| | T | Tone dialing enabled | |--------------+---------------------------------------------| | , | Dialing paused for 2 seconds to a maximum | | | amount of time specified in S8 register | |--------------+---------------------------------------------| | ; | Modem returned to command state after | | | dialing. Can only be placed at the end of | | | the dial command. | |--------------+---------------------------------------------| | " | Dials letters that follow, ATDT"GOMICRO | |--------------+---------------------------------------------| | ! | Flash function initiated | |--------------+---------------------------------------------| | / | 125 ms delay before proceeding with dial | | | string | |--------------+---------------------------------------------| | W | Dialing resumed following dial tone | | | detection of second dial tone | |--------------+---------------------------------------------| | @ | Wait for quiet answer, then proceeds to | | | execute the rest of the dial string. | |--------------+---------------------------------------------| | R | Answer mode enabled; originate mode | | | disabled following handshake initiation. | |--------------+---------------------------------------------| | S=n | Dial stored telephone number n | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL - LAST NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] DL [cmds] | |--------------+---------------------------------------------| | Description: | Re-dial last number dialed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL - STORED NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] DSn [cmds] | |--------------+---------------------------------------------| | Description: | Dial stored number from memory location n | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT BUFFER DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S38=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets maximum duration allowed during | | | buffered data calls for modem to perform | | | clearing functions after losing | | | carrier-signal or receiving a clear call | | | signal from the remote modem and before | | | initiating hang-up process. A value of 0 | | | will allow the modem to hanging-up after | | | DTR drops. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR CHANGE THRESHOLD | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S25=n [cmds] | |--------------+---------------------------------------------| | Default: | 5 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | .01 second | |--------------+---------------------------------------------| | Description: | Sets maximum time a change in the DTR | | | signal will be ignored | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] En [cmds] | |--------------+---------------------------------------------| | Description: | Controls echo function; display keyboard | | | commands when enabled. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | E0 | Echo function disabled | |--------------+---------------------------------------------| | i E1 | Echo function enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO - ON-LINE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Fn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether data sent while in data | | | mode are echoed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | F0 | Local echo enabled | |--------------+---------------------------------------------| | i F1 | Local echo disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION MODE (ARQ) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Mn [cmds] | |--------------+---------------------------------------------| | Description: | Selects active error correction protocols | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &M0 | Normal mode only | |--------------+---------------------------------------------| | i &M4 | Auto-detect mode | |--------------+---------------------------------------------| | &M5 | ARQ mode only | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE CHARACTER RESPONSE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S14=n [cmds] | |--------------+---------------------------------------------| | Description: | Controls reaction to escape character | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i S14=0 | Normal operation | |--------------+---------------------------------------------| | S14=1 | When +++ is received, modem goes on hook, | | | enters command state and sends NO CARRIER | | | result code. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | +++AT [cmds] | |--------------+---------------------------------------------| | Description: | Initiates the escape sequence and returns | | | the modem to the on-line command state if | | | it receives three escape characters set in | | | S2 within the time allotted by S12. | |------------------------------------------------------------| | Note: Do not precede this command with AT. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &An [cmds] | |--------------+---------------------------------------------| | Description: | Selects extended result codes | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &A0 | Extended result codes disabled | |--------------+---------------------------------------------| | &A1 | ARQ result codes enabled | |--------------+---------------------------------------------| | &A2 | ARQ result codes enabled and V.32 result | | | code added | |--------------+---------------------------------------------| | i &A3 | Error control and compression result codes | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY DEFAULT PROFILE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Fn [cmds] | |--------------+---------------------------------------------| | Description: | Loads values in active profile to values | | | found in the default profile, which are | | | READ-ONLY. | |------------------------------------------------------------| | Command | Function | |-------------------+----------------------------------------| | &F0 | Generic template | |-------------------+----------------------------------------| | i &F1 | Hardware flow control template | |-------------------+----------------------------------------| | &F2 | Software flow control template | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S23=n [cmds] | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XOFF. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XON | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S22=n [cmds] | |--------------+---------------------------------------------| | Default: | 17 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XON. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &In [cmds] | |--------------+---------------------------------------------| | Description: | Allows modem to act on, then transmit | | | XON/XOFF characters. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &I0 | Software flow control disabled | |--------------+---------------------------------------------| | &I1 | XON/XOFF pass-through enabled | |--------------+---------------------------------------------| | &I2 | XON/XOFF pass-through disabled | |--------------+---------------------------------------------| | &I3 | ENQ/ACK enabled in host mode | |--------------+---------------------------------------------| | &I4 | ENQ/ACK enabled in terminal mode | |--------------+---------------------------------------------| | &I5 | XON/XOFF pass-through disabled in error | | | correction mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Hn [cmds] | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &H0 | Flow control disabled | |--------------+---------------------------------------------| | i &H1 | CTS/RTS flow control enabled | |--------------+---------------------------------------------| | &H2 | XON/XOFF flow control enabled | |--------------+---------------------------------------------| | &H3 | CTS/RTS and XON/XOFF flow control enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Rn [cmds] | |--------------+---------------------------------------------| | Description: | Controls receive data hardware flow control | | | and RTS signals | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &R1 | Modem ignores RTS | |--------------+---------------------------------------------| | i &R2 | Received data to DTE when RTS is on | +------------------------------------------------------------+ +------------------------------------------------------------+ | GUARD TONE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Gn [cmds] | |--------------+---------------------------------------------| | Description: | Commands the modem to transmit a guard tone | |------------------------------------------------------------| | Note: Used primarily for international data | | transmission | |------------------------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &G0 | Guard tone disabled | |--------------+---------------------------------------------| | &G1 | 550Hz guard tone enabled | |--------------+---------------------------------------------| | &G2 | 1800Hz guard tone enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANDSHAKE TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Default: | 8 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sets the length of handshake time, so | | | modems with V.32bis, V.FC and V.34 are | | | given a chance to connect at 9600bps or | | | higher. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HOOK CONTROL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] Hn [cmds] | |--------------+---------------------------------------------| | Description: | Selects whether the modem is on-hook or | | | off-hook | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | H0 | Modem commanded to go on-hook (hang-up) | |--------------+---------------------------------------------| | H1 | Modem commanded to go off-hook (pick-up) | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S19=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LIST AMPERSAND COMMANDS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays ampersand (&) commands | +------------------------------------------------------------+ +------------------------------------------------------------+ | LIST DIAL COMMANDS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays dial commands | +------------------------------------------------------------+ +------------------------------------------------------------+ | LIST S-REGISTERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] S$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the S-registers | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Bn [cmds] | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &B0 | Serial speed follows connect speed | |--------------+---------------------------------------------| | i &B1 | Serial speed locked | |--------------+---------------------------------------------| | &B2 | Serial speed locked in ARQ mode only | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAPPING | |------------------------------------------------------------| | Format: | AT [cmds] S55=n [cmds] | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0-15 | |------------------------------------------------------------| | Unit: | Bit-mapped | |------------------------------------------------------------| | Description: | Controls all Map options | |------------------------------------------------------------| | Note: For 28.8 models | |------------------------------------------------------------| | Bit | Value | Function | |---------+----------+---------------------------------------| | 0 | i 0 | 8S-2D map enabled | | | | | | | 1 | 8S-2D map disabled | |------------------------------------------------------------| | 1 | i 0 | 16S-4D map enabled | | | | | | | 1 | 16S-4D map disabled | |-------------+--------+-------------------------------------| | 2 | i 0 | 32S-2D map enabled | | | | | | | 1 | 32S-2D map disabled | |-------------+--------+-------------------------------------| | 3 | i 0 | 64S-4D map enabled | | | | | | | 1 | 64S-4D map disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | MODE SELECTION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] #CLSn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the mode the modem will operate in | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | i #CLS0 | Data mode | |----------------+-------------------------------------------| | #CLS1 | Class 1 fax mode | |----------------+-------------------------------------------| | #CLS2 | Class 2 fax mode | |----------------+-------------------------------------------| | #CLS8 | Voice mode; while in voice mode, use the | | | commands below to: | |----------------+-------------------------------------------| | #VRX | Receive voice file from line, microphone, | | | or handset | |----------------+-------------------------------------------| | #VTX | Transmit voice file to line, microphone, | | | or handset | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON-LINE | |------------------------------------------------------------| | Type: | Immediate | |---------------+--------------------------------------------| | Format: | AT [cmds] On [cmds] | |---------------+--------------------------------------------| | Description: | Controls on-line command (data | | | transmission) mode options. | |------------------------------------------------------------| | Note: The O command must be placed at the end of the | | command string. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | O0 | On-line command mode with no retraining | | | enabled | |---------------+--------------------------------------------| | O1 | On-line command mode with retraining | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON-LINE HELP | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] $ [cmds] | |--------------+---------------------------------------------| | Description: | On-line help; displays basic command list | +------------------------------------------------------------+ +------------------------------------------------------------+ | POWER-UP/HARD RESET CONFIGURATIONS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Yn [cmds] | |--------------+---------------------------------------------| | Description: | On power-up modem uses default profiles | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Y0 | Use default setting 0 saved in non-volatile | | | RAM | |--------------+---------------------------------------------| | Y1 | Use default setting 1 saved in non-volatile | | | RAM | +------------------------------------------------------------+ +------------------------------------------------------------+ | PULSE DIALING | |------------------------------------------------------------| | Type: | Configuration | |----------------------+-------------------------------------| | Format: | AT [cmds] P [cmds] | |----------------------+-------------------------------------| | Description: | Enables pulse dialing | |------------------------------------------------------------| | Note: This command can be duplicated with the P | | modifier in the D (Dial) command. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PULSE DIALING RATIO | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Pn [cmds] | |--------------+---------------------------------------------| | Description: | Selects pulse dial make/break ratio | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &P0 | 39/61ms at 10pps (North America) | |--------------+---------------------------------------------| | &P1 | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPEAT PREVIOUS COMMAND | |------------------------------------------------------------| | Type: | Immediate | |---------------+--------------------------------------------| | Format: | A/ | |---------------+--------------------------------------------| | Description: | Repeats previous command, mainly used for | | | re-dial | |------------------------------------------------------------| | Note: Do not precede this command with AT, or follow | | it with . | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Description: | Displays information requested | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | I0 | Reports 4-digit product code | |--------------+---------------------------------------------| | I1 | Reports ROM checksum | |--------------+---------------------------------------------| | I2 | Reports RAM checksum | |--------------+---------------------------------------------| | I3 | Reports product type | |--------------+---------------------------------------------| | I4 | Reports current command settings | |--------------+---------------------------------------------| | I5 | Reports NVRAM settings | |--------------+---------------------------------------------| | I6 | Reports link diagnostics | |--------------+---------------------------------------------| | I7 | Reports product configuration | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Q0 | Result code sending enabled | |--------------+---------------------------------------------| | Q1 | Result code sending disabled | |--------------+---------------------------------------------| | Q2 | Result code sending enabled while in | | | originate mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODE FORMAT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Vn [cmds] | |--------------+---------------------------------------------| | Description: | Selects word or numeric format for | | | information-text and result codes | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | V0 | Numeric format enabled | |--------------+---------------------------------------------| | i V1 | Verbose (word) format enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | SELECT CALL PROGRESS RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Xn [cmds] | |--------------+---------------------------------------------| | Description: | Enables selection of tone detection and | | | associated result code format options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | X0 | Busy and dial tone detection disabled; | | | result codes 0-4 enabled. | |--------------+---------------------------------------------| | X1 | Busy and dial tone detection disabled; | | | result codes 0-5, 10-107 enabled | |--------------+---------------------------------------------| | X2 | Busy tone detection disabled, dial tone | | | detection enabled; result codes 0-6, 10-107 | | | enabled; also adaptive dialing, wait for | | | second dial tone, and fast dialing enabled. | |--------------+---------------------------------------------| | X3 | Busy tone detection enabled, dial tone | | | detection disabled; result codes 0-5, 7-107 | | | enabled; also adaptive dialing, and wait | | | for answer enabled. | |--------------+---------------------------------------------| | X4 | Busy and dial tone detection enabled; | | | result codes 0-107 enabled; also adaptive | | | dialing, wait for second dial tone, wait | | | for answer, and fast dialing enabled. | |------------------------------------------------------------| | Note: Valid numeric result codes; 0-8, 10, 13, 18, 20, 21, | | 25, 43, 85, 91, 99, 103, and 107. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SOFT RESET | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] Zn [cmds] | |--------------+---------------------------------------------| | Description: | Restores modem profiles previously saved in | | | non-volatile RAM | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Z0 | Restore setting used by ATY command | |--------------+---------------------------------------------| | Z1 | Restore setting 0 | |--------------+---------------------------------------------| | Z2 | Restore setting 1 | |--------------+---------------------------------------------| | Z3 | Restore factory setting 0 (AT&F0) | |--------------+---------------------------------------------| | Z4 | Restore factory setting 1 (AT&F1) | |--------------+---------------------------------------------| | Z5 | Restore factory setting 2 (AT&F2) | +------------------------------------------------------------+ +------------------------------------------------------------+ | SPEAKER MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Mn [cmds] | |--------------+---------------------------------------------| | Description: | Selects various speaker options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | M0 | Speaker disabled | |--------------+---------------------------------------------| | i M1 | Speaker enabled until carrier signal | | | detected | |--------------+---------------------------------------------| | M2 | Speaker enabled | |--------------+---------------------------------------------| | M3 | Speaker enabled following dialing, then | | | disabled after carrier signal detected. | +------------------------------------------------------------+ +------------------------------------------------------------+ | SPEAKER VOLUME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Ln [cmds] | |--------------+---------------------------------------------| | Description: | Controls speaker volume | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | L0 | Low volume setting | |--------------+---------------------------------------------| | L1 | Low volume setting | |--------------+---------------------------------------------| | i L2 | Medium volume setting | |--------------+---------------------------------------------| | L3 | Highest volume setting | +------------------------------------------------------------+ +------------------------------------------------------------+ | STATUS-REGISTER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | Read: AT [cmds] Sn? [cmds] | | | | | | Write: AT [cmds] Sn=x [cmds] | |--------------+---------------------------------------------| | Description: | Writes to or reads from a specified | | | register | |------------------------------------------------------------| | Note: See the section on S-registers for detailed | | listing of commonly used S-registers. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | Sn.b=x | Write to register bit b using values 0 | | | (off) and 1 (on) for x | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE ACTIVE PROFILE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Wn [cmds] | |--------------+---------------------------------------------| | Description: | Writes the values for the active profile | | | into the non-volatile RAM templates | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &W0 | Write the active profile to stored profile | | | 0 | |--------------+---------------------------------------------| | &W1 | Write the active profile to stored profile | | | 1 | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE TELEPHONE NUMBER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Zn=x [cmds] | |--------------+---------------------------------------------| | Description: | Writes selected telephone numbers into the | | | non-volatile memory at location n | |------------------------------------------------------------| | Note: The characters described in the D command are | | valid for use in the &Z command. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | &Zn=L | Writes last executed dial string into the | | | non-volatile memory at location n | |---------------+--------------------------------------------| | &Zn? | Displays phone number from non-volatile | | | memory at location n | |---------------+--------------------------------------------| | &ZL? | Displays last executed dial string | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Tn [cmds] | |--------------+---------------------------------------------| | Description: | Controls loopback tests, analog, digital, | | | remote digital, and self tests. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | &T0 | Testing disabled | |---------------+--------------------------------------------| | &T1 | Local analog loopback enabled | |---------------+--------------------------------------------| | &T3 | Local digital loopback enabled | |---------------+--------------------------------------------| | &T4 | Remote digital loopback enabled | |---------------+--------------------------------------------| | i &T5 | Remote digital loopback prohibited | |---------------+--------------------------------------------| | &T6 | Remote digital loopback initiated | |---------------+--------------------------------------------| | &T7 | Remote digital loopback w/ self-test and | | | error detector in progress | |---------------+--------------------------------------------| | &T8 | Local analog loopback w/ self-test and | | | error detector in progress | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S18=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the maximum duration for modem tests | |------------------------------------------------------------| | Note: S18=0 disables the timer and allows an | | indefinite duration. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TONE DIALING | |------------------------------------------------------------| | Type: | Configuration | |--------------------+---------------------------------------| | Format: | AT [cmds] T [cmds] | |--------------------+---------------------------------------| | Description: | Enables tone dialing mode | |------------------------------------------------------------| | Note: This command can be duplicated with the T | | modifier in the D (Dial) command. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TONE DIALING TEST | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Description: | Selects the tone dialing test | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i S16=0 | Tone dialing test disabled | |--------------+---------------------------------------------| | S16=2 | Tone dialing test enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | VOICE VIEW | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Sxxx [cmds] | |--------------+---------------------------------------------| | Description: | Controls voice view mode the modem will | | | operate in | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | -SAC | Accept voice view data mode request | |----------------+-------------------------------------------| | -SDA | Begin voice view modem data mode | |----------------+-------------------------------------------| | -SFX | Begin voice view fax data mode | |----------------+-------------------------------------------| | -SVV | Begin voice view data mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 AND V.32bis MODULATIONS | |------------------------------------------------------------| | Format | AT [cmds] S34=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 for 28.8; 6 for 14.4 | |--------------+---------------------------------------------| | Range: | 0-9 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls V.32 and V.32bis modulations. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | V.32bis enabled | | | | | | | 1 | V.32bis disabled | |------+-------+---------------------------------------------| | 2, 1 | 00 | Not used | |------+-------+---------------------------------------------| | 3 | 0 | V.23 modulation disabled | | | | | | | 1 | V.23 modulation enabled | +------------------------------------------------------------+