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Card Type

Modem/Fax card

Chip Set

Unidentified

I/O Options

Line out (RJ-11), line in (RJ-11)

Maximum Modem Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V34

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

Line out

CN1

Line in

CN2

SUPPORTED COMMAND SET

Basic AT Commands

AT, �+++�, A/

A, C, E, H, L, M, O, P, Q, S, T, V, X, Y, Z

&C, &F, &G &Q, &U &W, &Y, &Z

Extended AT Commands

\A, \B, \G, \L, \N

%C, %L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30, S32, S33, S38, S91

Voice Commands

#CID, #MDL?, #MFR?, #REV?, #CLS, #SPK, #TL, #VBQ?, #VBT, #VCI?, #VRA, #VRX, #VSK, #VSS

#VTD, #VTS, #VTX

Note: See MHI Help File for full command documentation.

AUTO-MODE DETECTION

Type:

Configuration

Format:

AT [cmds] Nn [cmds]

Description:

Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

Auto-mode detection disabled

í N1

Auto-mode detection enabled

COMMUNICATION PROTOCOLS

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the communication protocol for data calls

Command

Protocol

B0

ITU-T V.22 at 1200bps

í B1

Bell 212A at 1200bps

B2

ITU-T V.23 at 1200bps

CONFIGURATION PROFILES

Type:

Immediate

Format:

AT [cmds] &V [cmds]

Description:

Displays active and stored configuration profiles

Command

Function

&V0

Display active profile

&V1

Display stored profiles

&V2

Display stored telephone numbers

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&S0

DSR forced high

&S1

DSR on in on-line mode, off in command mode

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

í &D0

DTR is ignored (assumed on)

Modem goes to command mode after DTR goes is off

&D2

Modem goes to command mode and disconnects (hangs up) after DTR goes off

&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

DS=n

Dial stored telephone number n

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!

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^

1300Hz calling tone enabled

D;

Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] Wn [cmds]

Description:

Enables selection of additional result codes when S95=0; otherwise, S95 takes precedence.

Command

Function

W0

Report DTE speed

W1

Report result code

W2

Report DCE speed

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

XON/XOFF and RTS/CTS flow control enabled

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product code

I1

Reports hardware variation code

I2

Reports internal code

I3

Reports software revision number

I4

Reports product feature

TEST MODES

Type:

Immediate

Format:

AT [cmds] &Tn

Description:

Selects test options

Command

Function

&T0

End current test

&T1

Begin local analog loopback test

TRELLIS CODING

Type:

Configuration

Format:

AT [cmds] &Un [cmds]

Description:

Enables/disables trellis coding

Command

Function

í&U0

Trellis coding enabled

&U1

Trellis coding disabled

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

%E2

Auto-fallback/fall-forward enabled

%E3

Fast hang-up

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

Command

Break from DTE during NORMAL or MNP mode

Break from modem during DIRECT mode

Break from remote modem during NORMAL mode

\K0

Online command mode enabled, send no break to remote modem

Send break to remote modem, online command mode enabled

Buffers cleared, break sent to DTE

\K1

Break sent to remote modem and buffered cleared

Send break to remote modem, online command mode enabled

Buffers cleared, break sent to DTE

\K2

Online command mode enabled, send no break to remote modem

Send break to remote modem

Break sent immediately to DTE

\K3

Send break to remote modem immediately

Send break to remote modem, online command mode enabled

Break sent immediately to DTE

\K4

Online command mode enabled, send no break to remote modem

Send break to remote modem

Break sent with received data to the DTE

\K5

Send break with transmitted data

Send break to remote modem

Break sent with received data to the DTE

CONNECTION FAILURE CODES

Type:

Register

Format

AT [cmds] S86? [cmds]

Description:

Reports codes which correspond to the possible causes of a connection failure

Value

Meaning

0

Normal hang up

4

Carrier signal lost

5

No error-control detected for remote modem during feature negotiation

6

Remote modem failed to respond to feature negotiation

9

No common protocol found

12

No failure - remote modem disconnected normally

13

Remote modem failed to respond after 10 re-transmissions same message

14

Violation of negotiated protocol caused failure

20

Long space disconnect time limit reached

DCE LINE SPEED

Type:

Register

Format

AT [cmds] S37=n [cmds]

Description:

Sets the maximum allowable data exchange rate attempted during handshake process.

Command

Function

S37=0

Speed of last connection

S37=3

Connect at 300bps

S37=4

Connect at 1200bps

S37=6

Connect at 2400bps

S37=7

Connect at 4800bps

S37=8

Connect at 7200bps

S37=9

Connect at 9600bps

S37=10

Connect at 12.0Kbps

S37=11

Connect at 14.4Kbps

S37=12

Connect at 28.8Kbps

V.34 DATA RATE

Type:

Register

Format

AT [cmds] S34=n [cmds]

Range

0-11

Description:

Sets the maximum bit rate for V.34. Default is S34=11 (28.8Kbps)

V.34 SYMBOL RATE

Type:

Register

Format

AT [cmds] S35=n [cmds]

Range

0-5

Description:

Sets the minimum baud rate for V.34. Default is S35=0 (2400bps)

RECORDING GAIN

Type:

Immediate

Format:

AT [cmds] #RG=hhhh [cmds]

Default:

7FFF

Range:

0000 - 7FFF

Unit:

Unidentified (hexadecimal)

Description:

Sets the voice recording gain level

SILENCE DETECTION

Type:

Configuration

Format:

AT [cmds] #VSD=n [cmds]

Description:

Enables/disables voice receive mode silence detection.

Note:

Function not supported by modem

VOICE DEVICE

Type:

Configuration

Format:

AT [cmds] #VLS=n [cmds]

Description:

Selects the I/O device for the DSP chip.

Note:

This modem may not support all options listed below. The #VLS? Command will display the available options.

Command

Function

í #VLS=0

Telephone line and handset used for voice I/O.

#VLS=1

Telephone handset used for voice I/O.

#VLS=2

Internal speaker only used for voice I/O.

#VLS=3

External microphone only used for voice I/O.

#VLS=4

Telephone line and handset used for voice I/O; internal speaker enabled.

#VLS=6

Speakerphone used for voice I/O.

VOICE - LOCAL SERIAL PORT SPEED

Type:

Configuration

Format:

AT [cmds] #BDR=n [cmds]

Range:

0-48

Unit:

2400 baud (rate = n * 2400)

Description:

Sets the speed of the local serial port when in voice mode.

VOICE RING DETECT TIME

Type:

Configuration

Format:

AT [cmds] #VRN=n [cmds]

Default:

Unidentified

Range:

0-255

Unit:

10ms

Description:

Sets the maximum time the modem will wait for the remote station to ring before it assumes that it went off-hook before it rang.

VOICE SAMPLE QUALITY

Type:

Configuration

Format:

AT [cmds] #VBS=n [cmds]

Description:

Selects the number of bits per sample that the modem records.

Note:

Modem only supports 4 bits per sample in ADPCM encoding.

VOICE SAMPLING RATE

Type:

Configuration

Format:

AT [cmds] #VSR=n [cmds]

Description:

Sets the sampling rate used when recording voice signals.

Note:

Modem only supports a sampling rate to 8000Hz

VOICE SILENCE DETECTION TIME

Type:

Configuration

Format:

AT [cmds] #VSP=n [cmds]

Default:

55

Range:

0 - 255

Unit:

.1 second

Description:

Sets the minimum amount of silence that the modem will detect.