MULTITECH SYSTEMS, INC. ======================= MT1932ZPX Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 19.2Kbps Maximum Fax Rate 14.4Kbps Data Bus 16-bit ISA Fax Class Class I & II Data Modulation Bell 103A/212A Protocol ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis AT&T V.32terbo Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP2-5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | |-----------------------------+------------------------------| | Line in | CN1 | +------------------------------------------------------------+ +-------------------------------------------------------------------------+ | INTERRUPT SELECTION | |-------------------------------------------------------------------------| |IRQ|JP1/A |JP1/B |JP1/C |JP1/D |JP1/E |JP1/F |JP1/G |JP1/H |JP1/I |JP1/J | |---+------+------+------+------+------+------+------+------+------+------| |i3 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 4 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 5 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 7 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 2 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open | |or | | | | | | | | | | | | 9 | | | | | | | | | | | |---+------+------+------+------+------+------+------+------+------+------| |10 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| |11 | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| |12 | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open | |---+------+------+------+------+------+------+------+------+------+------| |14 | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open | |---+------+------+------+------+------+------+------+------+------+------| |16 | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed| +-------------------------------------------------------------------------+ +------------------------------------------------------------+ | BASE I/O ADDRESS SELECTION | |------------------------------------------------------------| | Address | SW1/1 | SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 | |---------+-------+-------+------+------+------+------+------| | 100h | On | On | On | On | On | Off | On | |---------+-------+-------+------+------+------+------+------| | 108h | Off | On | On | On | On | Off | On | |---------+-------+-------+------+------+------+------+------| | 110h | On | Off | On | On | On | Off | On | |---------+-------+-------+------+------+------+------+------| | 118h | Off | Off | On | On | On | Off | On | |---------+-------+-------+------+------+------+------+------| | 120h | On | On | Off | On | On | Off | On | |---------+-------+-------+------+------+------+------+------| | 2E8h | Off | On | Off | Off | Off | On | Off | | (COM4:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | i 2F8h | Off | Off | Off | Off | Off | On | Off | | (COM2:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | 3D8h | Off | Off | On | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3E0h | On | On | Off | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3E8h | Off | On | Off | Off | Off | Off | Off | | (COM3:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | 3F0h | On | Off | Off | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3F8h | Off | Off | Off | Off | Off | Off | Off | | (COM1:) | | | | | | | | |------------------------------------------------------------| | Note: A total of 127 memory base I/O address settings are | | available. The switches are a binary representation of the| | hexadecimal addresses. Switch SW1/1 is the Least | | Significant Bit and switch SW1/7 is the Most Significant | | Bit. The switches have the following decimal values: | | switch SW1/1=8, SW1/2=16, SW1/3=32, SW1/4=64, SW1/5=128, | | SW1/6=256, SW1/7=512.Turn off the switches and add the | | values of the off switches to obtain the correct base I/O | | address. (on=0, off=1) | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY CONFIGURED - DO NOT ALTER | |------------------------------------------------------------| | Switch | Position | |-----------------------------+------------------------------| | SW1/8 | On | +------------------------------------------------------------+ Proprietary Command Set +------------------------------------------------------------+ | AUTO-RELIABLE TIME BUFFER CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $An [cmds] | |--------------+---------------------------------------------| | Example: | AT $A1 &W | |--------------+---------------------------------------------| | Description: | Controls the handling of incoming data | | | during auto-reliable time period. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i$A0 | Data is discarded. | |--------------+---------------------------------------------| | $A1 | Data is buffered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $EBn [cmds] | |--------------+---------------------------------------------| | Example: | AT $EB1 E1 | |--------------+---------------------------------------------| | Description: | Selects 10- or 11-bit mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $EB0 | Sets 10-bit mode. | |--------------+---------------------------------------------| | $EB1 | Sets 11-bit mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CARRIER MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C0 A | |--------------+---------------------------------------------| | Description: | Sets the function of the Carrier Detect | | | (CD) signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &C0 | Forces CD high. | |--------------+---------------------------------------------| | i&C1 | CD signal follows carrier. | |--------------+---------------------------------------------| | &C2 | Forces CD low for time in S24 when the | | | modem disconnects. | |--------------+---------------------------------------------| | &C4 | Resets modem when CD goes low. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND ESCAPE TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Example: | AT %E3 &W | |--------------+---------------------------------------------| | Description: | Sets type and response of command escape | | | sequence. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %E0 | Command escape disabled. | |--------------+---------------------------------------------| | i%E1 | TIES escape (+++AT...) | |--------------+---------------------------------------------| | %E2 | AT method. | |--------------+---------------------------------------------| | %E3 | Both TIES and BREAK methods. | |--------------+---------------------------------------------| | %E4 | OK response to command escape disabled. | |--------------+---------------------------------------------| | %E5 | OK response to command escape enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND SET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT &Qn | |--------------+---------------------------------------------| | Example: | AT &Q1 | |--------------+---------------------------------------------| | Description: | Selects standard Hayes or custom command | | | sets. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&Q0 | Multi-Tech custom command set enabled. | |--------------+---------------------------------------------| | &Q1 | Standard Hayes command set enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT &En | |--------------+---------------------------------------------| | Example: | AT &E15 #L0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E14 | Data compression disabled. | |--------------+---------------------------------------------| | i &E15 | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT #Ln | |--------------+---------------------------------------------| | Example: | AT #L2 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects active compression protocols. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i#L0 | V.42 negotiation enabled. | |--------------+---------------------------------------------| | #L1 | MNP negotiation enabled. | |--------------+---------------------------------------------| | #L2 | LAP-M negotiation enabled. | |--------------+---------------------------------------------| | #L3 | LAP-M enabled, no negotiation. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &RFn [cmds] | |--------------+---------------------------------------------| | Example: | AT &RF0 | |--------------+---------------------------------------------| | Description: | Selects the function of the CTS signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &RF0 | CTS is set to RTS. | |--------------+---------------------------------------------| | i&RF1 | CTS is independent of RTS. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL STORED PHONE NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] Nn1 [Nn2, Nn3...] | |--------------+---------------------------------------------| | Example: | ATM0 N1N3N5 | |--------------+---------------------------------------------| | Description: | Dials stored phone number(s). If the first | | | number is busy, the modem will proceed to | | | the next number in the list. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &SFn [cmds] | |--------------+---------------------------------------------| | Example: | AT &SF0 | |--------------+---------------------------------------------| | Description: | Selects the function of the DSR signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&SF0 | DSR is set to CD. | |--------------+---------------------------------------------| | &SF1 | DSR is independent of CD. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR TIMEOUT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S24=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS24=40 | |--------------+---------------------------------------------| | Default: | 20 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 50 ms | |--------------+---------------------------------------------| | Description: | Sets the time to drop the DTR signal to | | | hangup. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION DISABLE ON CONNECT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Fn [cmds] | |--------------+---------------------------------------------| | Example: | AT $F1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects whether error correction can be | | | disabled by a while handshaking. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $F0 | Error correction handshake interrupt | | | disabled. | |--------------+---------------------------------------------| | i$F1 | Error correction handshake interrupt | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE BUFFER SIZE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S34=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS34=30 | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-60 | |--------------+---------------------------------------------| | Unit: | 1 byte | |--------------+---------------------------------------------| | Description: | Sets the size of the buffer used to store | | | commands during an escape sequence. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE - OUT OF BAND | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] | |--------------+---------------------------------------------| | Example: | AT #F1 | |--------------+---------------------------------------------| | Description: | Puts the modem in Command Mode. | |--------------+---------------------------------------------| | Notes: | Do not precede this command with AT. | | | | | | refers to the hardware modem break | | | signal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE TIMEOUT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S32=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS32=30 | |--------------+---------------------------------------------| | Default: | 20 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the maximum amount of time the modem | | | will wait for a while executing an | | | escape sequence. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FALLBACK MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Fn [cmds] | |--------------+---------------------------------------------| | Example: | AT #F1 O | |--------------+---------------------------------------------| | Description: | Sets direction of fallback. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #F0 | Fallback disabled. | |--------------+---------------------------------------------| | #F1 | Fallback from 19.2Kbps to 4800bps as line | | | quality degrades. | |--------------+---------------------------------------------| | i#F2 | Fallback from 4800bps to 19.2Kbps as line | | | quality improves. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL NORMAL MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E11 O | |--------------+---------------------------------------------| | Description: | Selects normal flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&E10 | Normal mode disabled. | |--------------+---------------------------------------------| | &E11 | Normal mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E4 &W | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E3 | Flow control disabled. | |--------------+---------------------------------------------| | i&E4 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | &E5 | XON/XOFF flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANDSHAKE ATTEMPTS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #An [cmds] | |--------------+---------------------------------------------| | Example: | AT #A1 #L3 | |--------------+---------------------------------------------| | Description: | Configures the initial handshake phase. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #A0 | Attempts in order: 19.2Kbps, 16.8Kbps, | | | 14.4Kbps, 12Kbps, 9600bps, 4800bps, | | | 2400bps, 1200bps, 300bps. | |--------------+---------------------------------------------| | #A1 | Attempts only 14.4Kbps. | |--------------+---------------------------------------------| | #A2 | Attempts in order: 28.8Kbps, 24Kbps, | | | 21.6Kbps, 19.2Kbps, 16.8Kbps, 14.4Kbps, | | | 12Kbps, 9600bps, 4800bps. | |--------------+---------------------------------------------| | #A3 | Attempts in order: 2400bps, 1200bps, | | | 300bps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP SCREENS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT $Hn | |--------------+---------------------------------------------| | Example: | AT $H1 | |--------------+---------------------------------------------| | Description: | Shows modem help screens. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $H1 | Shows help screen 1. | |--------------+---------------------------------------------| | $H2 | Shows help screen 2. | |--------------+---------------------------------------------| | $H3 | Shows help screen 3. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LIST CONFIGURATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT Ln | |--------------+---------------------------------------------| | Example: | AT L5 | |--------------+---------------------------------------------| | Description: | Lists modem configuration. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | L5 | Lists all settings. | |--------------+---------------------------------------------| | L6 | Lists the values of all S-registers. | |--------------+---------------------------------------------| | L7 | Lists extended parameters. | |--------------+---------------------------------------------| | L8 | Lists current diagnostics. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $SBnnn [cmds] | |--------------+---------------------------------------------| | Example: | AT $MB9600 $SB19200 | |--------------+---------------------------------------------| | Description: | Sets serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $SB300 | Sets 300bps speed. | |--------------+---------------------------------------------| | $SB1200 | Sets 1200bps speed. | |--------------+---------------------------------------------| | $SB2400 | Sets 2400bps speed. | |--------------+---------------------------------------------| | $SB4800 | Sets 4800bps speed. | |--------------+---------------------------------------------| | $SB9600 | Sets 9600bps speed. | |--------------+---------------------------------------------| | $SB19200 | Sets 19.2Kbps speed. | |--------------+---------------------------------------------| | $SB38400 | Sets 38.4Kbps speed. | |--------------+---------------------------------------------| | $SB57600 | Sets 57.6Kbps speed. | |--------------+---------------------------------------------| | $SB115200 | Sets 115.2Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOOPBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT &T5 | |--------------+---------------------------------------------| | Description: | Enables or disables remote digital loopback | | | response. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &T4 | Loopback response enabled. | |--------------+---------------------------------------------| | &T5 | Loopback response disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &BSn [cmds] | |--------------+---------------------------------------------| | Example: | AT &BS1 &MB28800 | |--------------+---------------------------------------------| | Description: | Sets the maximum transmittable block size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &BS0 | Maximum block size is 64 characters. | |--------------+---------------------------------------------| | i&BS1 | Maximum block size is 128 characters for | | | LAP-M, and 256 characters for MNP. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PACING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E13 | |--------------+---------------------------------------------| | Description: | Selects ENQ/ACK pacing. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E12 | Disables ENQ/ACK pacing. | |--------------+---------------------------------------------| | i&E13 | Enables ENQ/ACK pacing. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PACING - ENQ/ACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E9 | |--------------+---------------------------------------------| | Description: | Selects ENQ/ACK pacing. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&E8 | Enables ENQ/ACK pacing. | |--------------+---------------------------------------------| | &E9 | Disables ENQ/ACK pacing. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | ATA: | |--------------+---------------------------------------------| | Example: | ATA: | |--------------+---------------------------------------------| | Description: | Redials the last number dialed until it is | | | no longer busy. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONNECT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT $MBnnn | |--------------+---------------------------------------------| | Example: | AT $MB9600 $SB19200 | |--------------+---------------------------------------------| | Description: | Sets maximum remote connect speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $MB300 | Sets 300bps connect. | |--------------+---------------------------------------------| | $MB1200 | Sets 1200bps connect. | |--------------+---------------------------------------------| | $MB2400 | Sets 2400bps connect. | |--------------+---------------------------------------------| | $MB4800 | Sets 4800bps connect. | |--------------+---------------------------------------------| | $MB9600 | Sets 9600bps connect. | |--------------+---------------------------------------------| | $MB14400 | Sets 14.4Kbps connect. | |--------------+---------------------------------------------| | $MB19200 | Sets 19.2Kbps connect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRANSMIT FAIL ACTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT $R1 | |--------------+---------------------------------------------| | Description: | Sets whether the modem gives up on a bad | | | connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i$R0 | Hang up after 12 failed retransmissions. | |--------------+---------------------------------------------| | $R1 | Do not hang up after 12 failed | | | retransmissions. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE PHONE NUMBER IN NVRAM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#>Nn [dialstring] | |--------------+---------------------------------------------| | Example: | ATD555-1212N1 | |--------------+---------------------------------------------| | Description: | Stores a phone number in the modem's | | | memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRELLIS MODULATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT #T1 | |--------------+---------------------------------------------| | Description: | Controls Trellis Coded Modulation. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #T0 | Disables TCM. | |--------------+---------------------------------------------| | i#T1 | Enables TCM. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42 MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E0 | |--------------+---------------------------------------------| | Description: | Configures the operation of V.42 mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E0 | Error correction disabled. | |--------------+---------------------------------------------| | i&E1 | V.42 set to auto-reliable. | |--------------+---------------------------------------------| | &E2 | V.42 set to reliable. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42 LOW SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $En [cmds] | |--------------+---------------------------------------------| | Example: | AT $E1 | |--------------+---------------------------------------------| | Description: | Selects whether a V.42 connection will be | | | attempted at 300bps. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i$E0 | V.42 disabled at 300bps. | |--------------+---------------------------------------------| | $E1 | V.42 enabled at 300bps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XOFF SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Xn [cmds] | |--------------+---------------------------------------------| | Example: | AT #X1 | |--------------+---------------------------------------------| | Description: | Selects how XOFF signal is sent. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i#X0 | Single XOFF character sent until ready. | |--------------+---------------------------------------------| | #X1 | Multiple XOFF characters sent until ready. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E7 O | |--------------+---------------------------------------------| | Description: | Selects whether XON/XOFF signals are sent | | | to remote modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i&E6 | XON/XOFF signals trapped by local modem. | |--------------+---------------------------------------------| | &E7 | XON/XOFF passed through local modem. | +------------------------------------------------------------+