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# MAXTECH CORPORATION
XPV 56I41 (K56PLUS-L/CPI-SVD)
Card Type Modem, Fax
Chip Set Lucent
I/O Options Line in, line out, microphone in,
speaker out
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34, K56Plus
Fax Modulation ITU-T V.17, V.29, V.27ter
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Fax Class Class I & II
Data Bus 16-bit ISA
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, E, H, M, O, P, Q, T, V, W, Y, Z |
|------------------------------------------------------------|
| &C, &F, &G, &V, &W, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \J, \K, \T, \X |
|------------------------------------------------------------|
| -C |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S14, S21, S22, S24, S30, S36, S37, S48 |
|------------------------------------------------------------|
| |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTOSCAN MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables/Disables Autoscan mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| N0 | Autoscan mode disabled |
|--------------+---------------------------------------------|
| í N1 | Autoscan mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE (ASYNCHRONOUS) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &M0 | Asynchronous mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE (DATA LINK AND FALLBACK) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Q [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures data link options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &Q0 | Set Direct data link only |
|--------------+---------------------------------------------|
| &Q5 | Set V.42 data link with fallback options |
|--------------+---------------------------------------------|
| &Q6 | Set Normal data link only |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATION PROTOCOLS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the communication protocol for data |
| | calls |
|------------------------------------------------------------|
| Note: The B command allows the simultaneous selection |
| of more than one suffix, enabling multiple protocols. |
|------------------------------------------------------------|
| Command | Protocol |
|--------------+---------------------------------------------|
| B0 | Sets CCITT mode |
|--------------+---------------------------------------------|
| í B1 | Sets Bell mode |
|--------------+---------------------------------------------|
| B2 | CCITT V.23 originate: transmit 75/receive |
| | 1200bps |
|--------------+---------------------------------------------|
| B3 | CCITT V.23 originate: transmit 1200/receive |
| | 75bps |
|--------------+---------------------------------------------|
| B15 | Sets V.21 at 300 bps |
|--------------+---------------------------------------------|
| B16 | Sets Bell 103 at 300 bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &S0 | DSR forced high |
|--------------+---------------------------------------------|
| í &S1 | DSR is off while in command mode and set on |
| | in on-line mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA TERMINAL READY (DTR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Dn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects modem response to DTR |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &D0 | Modem does not respond to DTR |
|--------------+---------------------------------------------|
| &D1 | Modem goes to command mode after DTR goes |
| | is off |
|--------------+---------------------------------------------|
| &D2 | Modem goes to command mode and disconnects |
| | (hangs up) after DTR goes off; Auto-Answer |
| | is disabled. |
|--------------+---------------------------------------------|
| &D3 | Modem is initialized after DTR goes off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [cmds] |
|--------------+---------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| DL | Re-dial last number |
|--------------+---------------------------------------------|
| DP | Pulse dialing enabled |
|--------------+---------------------------------------------|
| í DT | Tone dialing enabled/Pulse dialing disabled |
|--------------+---------------------------------------------|
| DW | Dialing resumed following dial tone |
| | detection |
|--------------+---------------------------------------------|
| D, | Dialing paused for amount of time specified |
| | in S8 register |
|--------------+---------------------------------------------|
| D"WXY" | Optional method of denoting telephone |
| | numbers. Letters enclosed in quotes are |
| | interpreted as numbers according to the |
| | system found on a telephone keypad. |
|--------------+---------------------------------------------|
| D! | Flash function initiated. Modem commanded |
| | to go off-hook for specified time before |
| | returning on-hook. |
|--------------+---------------------------------------------|
| D@ | Wait for Quite 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. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &K [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures flow control settings |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| &K3 | RTS/CTS hardware flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF software flow control enabled |
|--------------+---------------------------------------------|
| &K5 | Transparent XON/XOFF software flow control |
| | enabled |
|--------------+---------------------------------------------|
| &K6 | RTS/CTS & XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HAYES SMARTMODEM 300 COMPATIBILITY |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures modem response and blind dialing |
| | capabilities |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| X0 | Sets modem to use Hayes Smartmodem 300 |
| | responses and blind dialing |
|--------------+---------------------------------------------|
| X1 | Sets modem to use Hayes Smartmodem 300 |
| | responses, CONNECT responses, and blind |
| | dialing |
|--------------+---------------------------------------------|
| X2 | Sets modem to use Hayes Smartmodem 300 |
| | responses, CONNECT responses, dial tone |
| | detection, and blind dialing |
|--------------+---------------------------------------------|
| X3 | Sets modem to use Hayes Smartmodem 300 |
| | responses, CONNECT responses, busy |
| | detection, and blind dialing |
|--------------+---------------------------------------------|
| í X4 | Set modem to use all responses, dial tone |
| | detection, and busy signal detection |
|--------------+---------------------------------------------|
| X5 | Set modem to use all responses, dial tone |
| | detection, and busy signal detection |
|--------------+---------------------------------------------|
| X6 | Set modem to use all responses, dial tone |
| | detection, and busy signal detection |
|--------------+---------------------------------------------|
| X7 | Sets modem to use Hayes Smartmodem 300 |
| | responses, dial tone detection, busy signal |
| | detection, and blind dialing |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects line type |
|--------------+---------------------------------------------|
| Command | Line Type |
|--------------+---------------------------------------------|
| í &L0 | Switched line (PSTN/Dial-up) |
|------------------------------------------------------------|
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports modem model and speed |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Tests and reports internal memory |
|--------------+---------------------------------------------|
| I3 | Reports default speed and modem model |
|--------------+---------------------------------------------|
| I4 | Reports firmware ID |
|--------------+---------------------------------------------|
| I9 | Reports country ID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESTORE PROFILE ON POWER-UP |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Yn [cmds] |
|--------------+---------------------------------------------|
| Description: | Restores a selected profile into the active |
| | profile on power-up (hard reset) |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &Y0 | Restore profile 0 on power-up |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Low volume setting |
|--------------+---------------------------------------------|
| í L1 | Low volume setting |
|--------------+---------------------------------------------|
| L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Tn |
|--------------+---------------------------------------------|
| Description: | Selects test options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &T0 | End current test |
|--------------+---------------------------------------------|
| &T1 | Begin local analog loopback test |
|--------------+---------------------------------------------|
| &T3 | Begin local digital loopback test |
|--------------+---------------------------------------------|
| &T6 | Begin remote digital loopback test |
+------------------------------------------------------------+
Extended AT Commands
+------------------------------------------------------------+
| AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall-forward |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled |
|--------------+---------------------------------------------|
| %C1 | MNP5 and V.42bis; or data compression and |
| | correction enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the type of connection the modem |
| | will operate in |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Enables Normal mode |
|--------------+---------------------------------------------|
| \N1 | Enables Direct mode |
|--------------+---------------------------------------------|
| \N2 | Enables MNP mode |
|--------------+---------------------------------------------|
| í \N3 | Enables V.42/MNP/Normal modes |
|--------------+---------------------------------------------|
| \N4 | Enables V.42 mode |
|--------------+---------------------------------------------|
| \N5 | Enables V.42/MNP/Normal modes |
|--------------+---------------------------------------------|
| \N7 | Enables V.42/MNP/Normal modes |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Vn [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports error correction result codes |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \V0 | Error correction result codes disabled |
|--------------+---------------------------------------------|
| í \V1 | Error correction result codes enabled |
|--------------+---------------------------------------------|
| \V2 | Error correction result codes enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by modem |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \Q0 | Flow control disabled |
|--------------+---------------------------------------------|
| \Q1 | Bi-Directional XON/XOFF flow control |
| | enabled |
|--------------+---------------------------------------------|
| \Q3 | Bi-Directional RTS/CTS flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RE-DIALING SUPPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures re-dialing suppression settings |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %X0 | Re-dialing suppression disabled |
|--------------+---------------------------------------------|
| %X1 | Re-dialing suppression enabled |
+------------------------------------------------------------+
S(status) -Registers
+------------------------------------------------------------+
| DATA CALLING TONE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S35=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0, 1 |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Enables the data calling tone |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL LINE RATE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S38=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 19 |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the 56K dialing rate |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL PHONE STATUS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S90=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0, 1 |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | 0=on hook, 1=off hook |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP MODE TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S89=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0, 5 - 255 |
|--------------+---------------------------------------------|
| Unit: | seconds |
|--------------+---------------------------------------------|
| Description: | Sets the sleep mode timer |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNTHETIC RING DIALING |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | dB |
|--------------+---------------------------------------------|
| Description: | Sets the volume of the synthetic ring |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNTHETIC RING FREQUENCY |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S33=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 5 |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the value of the synthetic frequency |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT LEVEL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S92=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 15 |
|--------------+---------------------------------------------|
| Range: | 6 - 15 |
|--------------+---------------------------------------------|
| Unit: | dB |
|--------------+---------------------------------------------|
| Description: | Sets the transmission level volume |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.34 MODUALTION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 1 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Description: | Enables V.34 modulation |