BEST DATA PRODUCTS, INC. ======================== MACH 2 56K Card Type Modem (asynchronous) Chipset Unidentified Maximum Data Rate 56Kbps Maximum Fax Rate 14.4Kbps Data Modulation Bell 103A, 212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 U.S. Robotics x2 Fax Modulation ITU-T V.17, V.27ter, V.29 Error MNP5, V.42, V.42bis Correction/Compression Fax Class Class I & II Data Bus 16-bit ISA Card Size Full height, half length +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |----------------------+-------+---------------------+-------| | Telephone line out | CN1 | Telephone line in | CN2 | +------------------------------------------------------------+ +------------------------------------------------------------+ | SUPPORTED STANDARD COMMANDS | |------------------------------------------------------------| | Basic AT Commands | |------------------------------------------------------------| | +++, 'comma', A/ | |------------------------------------------------------------| | A, B, E, F, H, L, M, O, P, T, V, X, Z | |------------------------------------------------------------| | &C, &D, &F, &G, &P, &R, &S, &T, &W, &Z | |------------------------------------------------------------| | S-Registers | |------------------------------------------------------------| | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, | | S18, S25, S38 | |------------------------------------------------------------| | Note: See MHI help file for complete information. | +------------------------------------------------------------+ +------------------------------------------------------------+ | UNIDENTIFIED COMMANDS | |------------------------------------------------------------| | Command | Default | |------------------------------+-----------------------------| | S31 | 128 | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | BIT-MAPPED REGISTER S13 | |------------------------------------------------------------| | Format | AT [cmds] S13=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 159 | |--------------+---------------------------------------------| | Description: | Controls DTR reset, DTR dialing, reset | | | dialing, and MNP3. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | DTR normal. | | | | | | | 1 | Reset on low DTR. | |------+-------+---------------------------------------------| | 1 | i 0 | Non-error-correcting mode transmit buffer | | | | set to 1.5KB. | | | 1 | | | | | Non-error-correcting mode transmit buffer | | | | set to 128 bytes. | |------+-------+---------------------------------------------| | 2 | i 0 | Backspace and delete keys normal. | | | | | | | 1 | Backspace and delete keys reversed. | |------+-------+---------------------------------------------| | 3 | i 0 | DTR dialing disabled. | | | | | | | 1 | DTR dialing enabled. | |------+-------+---------------------------------------------| | 4 | i 0 | Reset dialing disabled. | | | | | | | 1 | Reset dialing enabled. | |------+-------+---------------------------------------------| | 6, 5 | 00 | Not used. | |------+-------+---------------------------------------------| | 7 | i 0 | Modem enters command state when +++ is | | | | received. | | | 1 | | | | | Modem disconnects and enters command state | | | | when +++ is received. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S15 | |------------------------------------------------------------| | Format: | AT [cmds] S15=n [cmds] | |----------------+-------------------------------------------| | Default: | 0 | |----------------+-------------------------------------------| | Range: | 0 - 255 | |----------------+-------------------------------------------| | Description: | Controls error correction and compression | | | in selected protocols, MNP modes, and | | | V.42 operation. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 | i 0 | Error correction/compression enabled in | | | | V.22 mode. | | | 1 | | | | | Error correction/compression disabled in | | | | V.22 mode. | |------------------------------------------------------------| | 1 | i | Error correction/compression enabled in | | | 0 | V.22bis mode. | | | | | | | 1 | Error correction/compression disabled | | | | in V.22bis mode. | |-------------+----+-----------------------------------------| | 2 | i | Error correction/compression enabled in | | | 0 | V.32 and V.32bis modes. | | | | | | | 1 | Error correction/compression disabled | | | | in V.32 and V.32bis modes. | |-------------+----+-----------------------------------------| | 3 | i | MNP handshake enabled. | | | 0 | | | | | MNP handshake disabled. | | | 1 | | |-------------+----+-----------------------------------------| | 4 | i | MNP4 disabled. | | | 0 | | | | | MNP4 enabled. | | | 1 | | |-------------+----+-----------------------------------------| | 5 | i | MNP3 disabled. | | | 0 | | | | | MNP3 enabled. | | | 1 | | |-------------+----+-----------------------------------------| | 6 | i | MNP operation normal | | | 0 | | | | | MNP configured for non-compatible | | | 1 | modems. | |-------------+----+-----------------------------------------| | 7 | i | V.42 enabled. | | | 0 | | | | | V.42 disabled. | | | 1 | | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format: | AT [cmds] S27=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 191 | |--------------+---------------------------------------------| | Description: | Controls V.21/Bell 103A, V.32 encoding and | | | modulation, V.32bis modulation, V.42 answer | | | tone and selective reject, and 9600 result | | | codes. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Bell 103A enabled. | | | | | | | 1 | V.21 enabled. | |------+-------+---------------------------------------------| | 1 | i 0 | V.32 trellis coding enabled. | | | | | | | 1 | V.32 trellis coding disabled. | |------+-------+---------------------------------------------| | 2 | i 0 | V.32 modulation enabled. | | | | | | | 1 | V.32 modulation disabled. | |------+-------+---------------------------------------------| | 3 | i 0 | 2100Hz answer tone enabled. | | | | | | | 1 | 2100Hz answer tone disabled. | |------+-------+---------------------------------------------| | 4 | i 0 | Fallback to V.23 disabled. | | | | | | | 1 | Fallback to V.23 enabled. | |------+-------+---------------------------------------------| | 5 | i 0 | V.32bis modulation enabled. | | | | | | | 1 | V.32bis modulation disabled. | |------+-------+---------------------------------------------| | 6 | 0 | Not used. | |------+-------+---------------------------------------------| | 7 | i 0 | Actual result codes displayed. | | | | | | | 1 | Force 9600 result codes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S32 | |------------------------------------------------------------| | Format: | AT [cmds] S32=n [cmds] | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0 - 59 | |-----------------+------------------------------------------| | Description: | Controls V.8 protocol and options, and | | | V.34 and x2 modulation protocols. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | i 0 | V.8 Call Indicate disabled. | | | | | | | 1 | V.8 Call Indicate enabled. | |----------+-------+-----------------------------------------| | 1 | 0 | V.8 disabled. | | | | | | | i 1 | V.8 enabled. | |------------------------------------------------------------| | 2 | 0 | Not used. | |--------------+----+----------------------------------------| | 3 | i | V.34 modulation enabled. | | | 0 | | | | | V.34 modulation disabled. | | | 1 | | |--------------+----+----------------------------------------| | 4 | i | V.34 modulation at 31.2Kbps and | | | 0 | 33.6Kbps enabled. | | | | | | | 1 | V.34 modulation at 31.2Kbps and | | | | 33.6Kbps disabled. | |--------------+----+----------------------------------------| | 5 | i | U.S. Robotics x2 modulation enabled. | | | 0 | | | | | U.S. Robotics x2 modulation disabled. | | | 1 | | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S21=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | 10 ms | |--------------+---------------------------------------------| | Description: | Sets the length of error correction 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 | Break empties buffer. | |--------------+---------------------------------------------| | i &Y1 | Break empties buffer and is sent | | | immediately. | |--------------+---------------------------------------------| | &Y2 | Break does not empty buffer and is sent | | | immediately. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Kn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the type of data compression that | | | will be used. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &K0 | Data compression disabled. | |--------------+---------------------------------------------| | i &K1 | Auto-detect compression mode. | |--------------+---------------------------------------------| | &K2 | Data compression enabled. | |--------------+---------------------------------------------| | &K3 | MNP5 data compression only enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Un [cmds] | |--------------+---------------------------------------------| | Description: | Sets slowest allowed connection speed if &N | | | is set to 1 or higher. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &U0 | No minimum connect speed. | |--------------+---------------------------------------------| | &U1 | Set minimum connect speed to 300bps. | |--------------+---------------------------------------------| | &U2 | Set minimum connect speed to 1200bps. | |--------------+---------------------------------------------| | &U3 | Set minimum connect speed to 2400bps. | |--------------+---------------------------------------------| | &U4 | Set minimum connect speed to 4800bps. | |--------------+---------------------------------------------| | &U5 | Set minimum connect speed to 7200bps. | |--------------+---------------------------------------------| | &U6 | Set minimum connect speed to 9600bps. | |--------------+---------------------------------------------| | &U7 | Set minimum connect speed to 12Kbps. | |--------------+---------------------------------------------| | &U8 | Set minimum connect speed to 14.4Kbps. | |--------------+---------------------------------------------| | &U9 | Set minimum connect speed to 16.8Kbps. | |--------------+---------------------------------------------| | &U10 | Set minimum connect speed to 19.2Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED LOWER LIMIT (CON'T) | |------------------------------------------------------------| | Command | Function | |------------+-----------------------------------------------| | &U11 | Set minimum connect speed to 21.6Kbps. | |------------+-----------------------------------------------| | &U12 | Set minimum connect speed to 24Kbps. | |------------+-----------------------------------------------| | &U13 | Set minimum connect speed to 26.4Kbps. | |------------+-----------------------------------------------| | &U14 | Set minimum connect speed to 28.8Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets required connection speed if &U is set | | | to 0; otherwise, sets fastest allowed | | | connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &N0 | No maximum connect speed. | |--------------+---------------------------------------------| | &N1 | Set maximum connect speed to 300bps. | |--------------+---------------------------------------------| | &N2 | Set maximum connect speed to 1200bps. | |--------------+---------------------------------------------| | &N3 | Set maximum connect speed to 2400bps. | |--------------+---------------------------------------------| | &N4 | Set maximum connect speed to 4800bps. | |--------------+---------------------------------------------| | &N5 | Set maximum connect speed to 7200bps. | |--------------+---------------------------------------------| | &N6 | Set maximum connect speed to 9600bps. | |--------------+---------------------------------------------| | &N7 | Set maximum connect speed to 12Kbps. | |--------------+---------------------------------------------| | &N8 | Set maximum connect speed to 14.4Kbps. | |--------------+---------------------------------------------| | &N9 | Set maximum connect speed to 16.8Kbps. | |--------------+---------------------------------------------| | &N10 | Set maximum connect speed to 19.2Kbps. | |--------------+---------------------------------------------| | &N11 | Set maximum connect speed to 21.6Kbps. | |--------------+---------------------------------------------| | &N12 | Set maximum connect speed to 24Kbps. | |--------------+---------------------------------------------| | &N13 | Set maximum connect speed to 26.4Kbps. | |--------------+---------------------------------------------| | &N14 | Set maximum connect speed to 28.8Kbps. | |--------------+---------------------------------------------| | &N15 | Set maximum connect speed to 31.2Kbps. | |--------------+---------------------------------------------| | &N16 | Set maximum connect speed to 33.6Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#>;[cmds] | |--------------+---------------------------------------------| | Description: | Dials the telephone number indicated | | | according to any modifiers included in the | | | string. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | DL | Re-dial last number. | |--------------+---------------------------------------------| | DP | Pulse dialing enabled. | |--------------+---------------------------------------------| | DR | Answer mode enabled; originate mode | | | disabled following handshake initiation. | |--------------+---------------------------------------------| | DSn | Dial stored telephone number n. | |--------------+---------------------------------------------| | 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 1/8 second. | |--------------+---------------------------------------------| | D! | Flash function initiated. Modem commanded | | | to go off-hook for specified time before | | | returning on-hook. | |--------------+---------------------------------------------| | D@ | Wait for Quiet Answer function enabled. | | | Modem waits until a "quiet answer," a | | | ring-back signal followed by silence up to | | | the time specified in S7, is received prior | | | to executing the rest of the dial string. | |--------------+---------------------------------------------| | D; | Modem returned to idle state after dialing. | | | The semicolon can only be placed at the end | | | of the dial command. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY HELP SCREEN - AMPERSAND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the help screen on the AT& | | | commands. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY HELP SCREEN - BASIC | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the basic help screen. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY HELP SCREEN - DIAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] D$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the help screen on the dialing | | | commands. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY HELP SCREEN - REGISTERS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S$ [cmds] | |--------------+---------------------------------------------| | Description: | Displays the help screen for S registers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Description: | Displays modem properties. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | I0 | Displays product identification code. | |--------------+---------------------------------------------| | I1 | Tests and displays ROM checksum result. | |--------------+---------------------------------------------| | I2 | Tests and displays RAM checksum result. | |--------------+---------------------------------------------| | I3 | Displays product type. | |--------------+---------------------------------------------| | I4 | Displays current command settings. | |--------------+---------------------------------------------| | I5 | Displays current NVRAM settings. | |--------------+---------------------------------------------| | I6 | Displays link diagnostics. | |--------------+---------------------------------------------| | I7 | Displays product configuration. | |--------------+---------------------------------------------| | I10 | Displays virtual device driver | | | configuration. | |--------------+---------------------------------------------| | I11 | Displays current connection's statistics | | | for V.34 mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION MODE | |------------------------------------------------------------| | 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 | Error correction mode only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &An [cmds] | |--------------+---------------------------------------------| | Description: | Selects extended result codes. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &A0 | Extended result codes disabled. | |--------------+---------------------------------------------| | &A1 | Error correction result codes enabled. | |--------------+---------------------------------------------| | &A2 | V.32 result code enabled. | |--------------+---------------------------------------------| | i &A3 | Error correction and compression result | | | codes enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S23=n [cmds] | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0 - 127 | |--------------+---------------------------------------------| | Unit: | 1 ASCII character | |--------------+---------------------------------------------| | 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: | 1 ASCII character | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XON. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL - MODEM-TO-MODEM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &In [cmds] | |--------------+---------------------------------------------| | Description: | Selects the type of modem-to-modem flow | | | control used. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &I0 | Software flow control disabled. | |--------------+---------------------------------------------| | &I1 | XON/XOFF pass-through enabled. | |--------------+---------------------------------------------| | &I2 | XON/XOFF pass-through disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format | AT [cmds] S19=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Maximum duration of DTE and DCE inactivity | | | allowed prior to initiating hang-up | | | process. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROFILE ON POWER-UP | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Yn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the profile that the modem will | | | reset to on power-up. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Y0 | Modem resets to user profile 0 on power-up. | |--------------+---------------------------------------------| | Y1 | Modem resets to user profile 1 on power-up. | |--------------+---------------------------------------------| | Y2 | Modem resets to factory generic profile on | | | power-up. | |--------------+---------------------------------------------| | Y3 | Modem resets to factory hardware flow | | | control profile on power-up. | |--------------+---------------------------------------------| | Y4 | Modem resets to factory software flow | | | control profile on power-up. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPEAT PREVIOUS COMMAND CONTINUALLY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | A> | |--------------+---------------------------------------------| | Description: | Repeats the previous command until | | | interrupted by the user. | |--------------+---------------------------------------------| | Note: | Do not precede this command with AT, or | | | follow it with . | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i Q0 | Result codes enabled. | |--------------+---------------------------------------------| | Q1 | Result codes disabled. | |--------------+---------------------------------------------| | Q2 | Result codes enabled in originate mode | | | only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST PATTERN | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Description: | Transmits a test pattern to the remote | | | modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i S16=0 | Test pattern disabled. | |--------------+---------------------------------------------| | S16=4 | Test pattern enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.21 ANSWER MODE FALLBACK TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S29=n [cmds] | |--------------+---------------------------------------------| | Default: | 20 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | The function of this register is | | | unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 HANDSHAKE TIME | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Default: | 8 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sets length of V.32 handshake. A value of | | | 255 means that the modem will only accept | | | connections with V.32 at 9600bps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 MAPPING | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S34=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Description: | Controls V.34 mapping, non-linear coding, | | | transmit level deviation, pre-emphasis, and | | | pre-coding. | |--------------+---------------------------------------------| | 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. | |------+-------+---------------------------------------------| | 4 | i 0 | Non-linear coding enabled. | | | | | | | 1 | Non-linear coding disabled. | |------+-------+---------------------------------------------| | 5 | i 0 | Transmit level deviation enabled. | | | | | | | 1 | Transmit level deviation disabled. | |------+-------+---------------------------------------------| | 6 | i 0 | Pre-emphasis enabled. | | | | | | | 1 | Pre-emphasis disabled. | |------+-------+---------------------------------------------| | 7 | i 0 | Pre-coding enabled. | | | | | | | 1 | Pre-coding disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.34 OPTIONS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S33=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Description: | Controls V.34 baud rate and shaping. | |--------------+---------------------------------------------| | 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 | 0 | Not used. | |------+-------+---------------------------------------------| | 7 | i 0 | Shaping enabled. | | | | | | | 1 | Shaping disabled. | +------------------------------------------------------------+