IPTools.net.ua

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA Type II

Fax Class

Class I & II

Data Modulation Protocol

AT&T ETC cellular protocol

Fax Modulation Protocol

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

Error Correction/Compression

MNP5, V.42, V.42bis

AT COMMAND SET ERRORS

Type:

Configuration

Format:

AT S84=n

Example:

AT S84=1 <CR>

Description:

Configures how the modem will respond to errors.

Command

Function

í S84=0

Normal operation.

S84=1

NO_ERROR mode.

S84=2

NO_STRAP_OR_ERROR mode.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Register

Format:

AT [cmds] %An [cmds]

Example:

AT%A20<CR>

Default:

13

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

Command

Function

í \C0

Data is buffered.

\C1

Data is discarded.

\C2

Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character.

AUTO-RETRAIN - V.32bis

Type:

Configuration

Format:

AT S76=n

Example:

AT S76=1 <CR>

Description:

Selects auto-retrain mode for V.32bis.

Command

Function

í S76=0

Auto-retrain enabled.

S76=1

Auto-retrain disabled.

S76=2

Auto-retrain enabled; speed defaults to 4800bps.

S76=3

Auto-retrain enabled; speed defaults to 9600bps.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1 <CR>

Description:

Configures action of break signal.

Command

Function

\K0

Buffers cleared and break sent to remote modem, then enter command mode.

\K1

Buffers cleared and break sent to remote modem.

\K2

Send break to remote modem immediately, then enter command mode.

\K3

Send break to remote modem immediately.

\K4

Send break to remote modem with transmitted data, then enter command mode.

í \K5

Send break to remote modem with transmitted data.

CD SIGNAL

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Example:

AT &C4 &R2 &S2<CR>

Description:

Configures the behavior of the carrier detect signal.

Command

Function

&C0

CD forced high.

í &C1

CD normal.

&C2

CD forced high except during disconnecting.

&C3

CD follows DTR signal.

&C4

CD follows remote RTS signal.

&C5

CD forced low when DTR is low.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT *EC0 %C1 *AP0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

í %C1

Data compression enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N1

Direct mode enabled.

\N2

MNP mode only enabled.

\N3

MNP mode with fallback to normal mode enabled.

\N4

LAP-M mode only enabled.

\N5

LAP-M mode with fallback to normal mode enabled.

\N6

LAP-M mode with fallback to MNP enabled.

í \N7

LAP-M mode with fallback to MNP and normal modes enabled.

CTS SIGNAL

Type:

Configuration

Format:

AT [cmds] \Dn [cmds]

Example:

AT \D0<CR>

Description:

Selects the function of the CTS signal.

Command

Function

í \D0

CTS forced high.

\D1

CTS normal.

\D2

DSR normal, except forced low on disconnect.

\D3

CTS follows CD.

DISCONNECT BUFFER DELAY

Type:

Register

Format:

AT [cmds] S49=n [cmds]

Example:

AT S49=0<CR>

Default:

10

Range:

0-255

Unit:

1 second

Description:

Configures how long the modem will wait to disconnect if there is data in the transmit or receive buffers.

DSR SIGNAL

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Example:

AT &C4 &R2 &S2<CR>

Description:

Selects the function of the DSR signal.

Command

Function

&S0

DSR forced high.

&S1

DSR normal.

&S2

DSR normal, except forced low on disconnect.

&S3

DSR follows DTR.

&S4

DSR normal, except signal is brought high early.

&S5

DSR forced low in command mode.

DTR SIGNAL

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Example:

AT &D1<CR>

Description:

Configures the behavior of the Data Terminal Ready signal.

Command

Function

&D0

DTR forced high.

&D1

Modem will enter command mode on low DTR.

í &D2

Modem will disconnect on low DTR.

&D3

Modem will disconnect and reset on low DTR.

&D4

Modem will disconnect only on low DTR, regardless of remote modem.

ETC PROTOCOL

Type:

Configuration

Format:

AT [cmds] S91=n [cmds]

Example:

AT S91=0<CR>

Description:

Controls the AT&T ETC protocol.

Command

Function

í S91=0

ETC disabled.

S91=1

ETC enabled.

FACTORY DEFAULTS

Type:

Immediate

Format:

AT &Fn

Example:

AT &F8<CR>

Description:

Loads factory defaults.

Command

Function

&F0

Reloads factory configuration.

&F5

Reloads factory configuration for ETC in cellular mode.

&F6

Reloads factory configuration for ETC in switched line mode.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT \G1 &K3<CR>

Description:

Selects modem port flow control.

Command

Function

í \G0

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Example:

AT \Q5<CR>

Description:

Sets type of flow control used by modem.

Command

Function

\Q0

Flow control disabled.

í \Q1

Bidirectional XON/XOFF flow control enabled.

\Q2

CTS flow control by DCE disabled.

\Q3

Bidirectional CTS/RTS flow control enabled.

\Q4

Flow control by DCE disabled.

í \Q5

XON/XOFF flow control by DCE enabled.

\Q6

RTS flow control by DCE enabled.

HANG UP MODE

Type:

Configuration

Format:

AT [cmds] S85=n [cmds]

Example:

AT S85=1 O<CR>

Description:

Selects how the modem will hang up.

Command

Function

í S85=0

Set hang up mode to normal on next ATH command.

S85=1

Set hang up mode to fast on next ATH command.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

Unidentified

Range:

0-255

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LOCAL SERIAL PORT SPEED

Type:

Configuration

Format:

AT [cmds] %Rnnn [cmds]

Example:

AT %B9600 %R19200<CR>

Description:

Sets serial port speed.

Command

Function

%R300

Sets 300bps speed.

%R600

Sets 600bps speed.

%R1200

Sets 1200bps speed.

%R2400

Sets 2400bps speed.

%R4800

Sets 4800bps speed.

%R9600

Sets 9600bps speed.

%R12000

Sets 12Kbps speed.

%R14400

Sets 14.4Kbps speed.

%R19200

Sets 19.2Kbps speed.

%R38400

Sets 38.4Kbps speed.

%R57600

Sets 57.6Kbps speed.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] S90=n [cmds]

Example:

AT %L3 %B14 S90=0<CR>

Description:

Sets operation of serial port speed.

Command

Function

í S90=0

Serial speed locked.

S90=1

Serial speed follows connect speed.

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1<CR>

Description:

Sets the maximum transmittable block size.

Command

Function

\A0

MNP block size is 64 characters.

\A1

MNP block size is 128 characters.

\A2

MNP block size is 192 characters.

í \A3

MNP block size is 256 characters.

\A4

MNP block size is 32 characters.

\A5

MNP block size is 16 characters.

NEGOTIATE PROTOCOL

Type:

Configuration

Format:

AT S78=n

Example:

AT S78=1 <CR>

Description:

Configures whether the modem will attempt to negotiate protocols or if only the protocol selected in S41 will be used.

Command

Function

í S78=0

Negotiation enabled.

S78=1

Negotiation disabled.

PROTOCOL/SPEED

Type:

Immediate

Format:

AT [cmds] %Bn [cmds]

Example:

AT %B14400<CR>

Description:

Selects the current DCE speed.

Command

Function

%B300

Select 300bps speed.

%B1200

Select 1200bps speed.

%B2400

Select 2400bps speed.

%B4800

Select 4800bps speed.

%B7200

Select 7200bps speed.

%B9600

Select 9600bps speed.

%B12000

Select 12Kbps speed.

%B14400

Select 14.4Kbps speed.

PROTOCOL/SPEED

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Example:

ATS41=2<CR>

Description:

Selects the current protocol and speed.

Command

Function

í S41=0

V.32bis 14.4Kbps.

S41=2

V.32bis 12Kbps.

S41=3

V.32bis or V.32 9600bps.

S41=4

V.32bis 7200bps.

S41=5

V.32bis or V.32 4800bps.

S41=6

V.22bis 2400/1200bps.

S41=7

V.22 1200bps.

S41=8

Bell 212A 1200bps.

S41=10

V.21 300bps.

S41=11

Bell 103A 300bps.

S41=12

V.23 1200/75bps.

S41=13

V.23 75/1200bps.

REDIAL

Type:

Immediate

Format:

AT [cmds] DL

Example:

AT M1 DL<CR>

Description:

Redials the last number dialed.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I3 &V1 %V<CR>

Description:

Displays modem properties.

Command

Function

I0

Reports product code.

I1

Reports firmware version in short form.

I2

Reports firmware checksum result.

I3

Reports serial number.

I4

Reports modem number.

I5

Reports hardware part number.

I6

Reports software part number.

I9

Reports firmware part number.

I11

Reports ROM checksum result.

I17

Reports reason for last error.

I19

Reports firmware version in long form.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] &Vn [cmds]

Example:

AT I3 &V18 <CR>

Description:

Reports configuration profiles, stored numbers, and other information. If an option is preceded by 1, the report will be displayed repeatedly until a key is pressed.

Command

Function

&V0

Report current configuration.

&V1

Report active configuration profile.

&V2

Display profile 0.

&V3

Display profile 1.

&V4

Display the first two stored numbers.

&V8

Report connection status and internal modem information.

REPORT INFORMATION - CHANGE MODEM SPEED

Type:

I10=mmediate

Format:

AT [cmds] I10=n [cmds]

Example:

AT I10=3 &V1 %V<CR>

Description:

Changes the value reported by I0.

Command

Function

I10=0

I0 will report 144 (14.4Kbps).

I10=1

I0 will report 240 (2400bps).

I10=2

I0 will report 480 (4800bps).

I10=3

I0 will report 960 (9600bps).

I10=4

I0 will report 120 (1200bps).

RESULT CODE FORMAT

Type:

Immediate

Format:

AT [cmds] Vn [cmds]

Example:

AT V1<CR>

Description:

Selects which type of result codes will be displayed.

Command

Function

V0

Display standard numeric result codes.

í V1

Display verbose result codes.

V2

Display AT&T numeric result codes.

RTS SIGNAL

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Example:

AT &C4 &R2 &S2<CR>

Description:

Configures the behavior of the Ready to Send signal.

Command

Function

&R0

RTS normal.

&R1

RTS forced high.

í &R2

RTS follows remote CD signal.

SWITCHED LINE TRANSMISSION LEVEL

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Example:

AT &I15<CR>

Default:

9

Range:

10 - 25

Unit:

-1 dBm

Description:

Sets the signal level for transmission when in switched line mode.

V.17 MODULATION

Type:

Configuration

Format:

AT S79=n

Example:

AT S79=1 <CR>

Description:

Selects whether V.17 can be used for fax modulation.

Command

Function

í S79=0

V.17 enabled.

S79=1

V.17 disabled.

V.32 HANDSHAKE OPTIONS

Type:

Configuration

Format:

AT [cmds] S43=n [cmds]

Example:

AT S43=0<CR>

Description:

Shortens V.32 and V.32bis handshake time.

Command

Function

í S43=0

Normal handshake sequence.

S43=1

Training time is shortened by 2 seconds in V.32 and V.32bis modes.

V.42 WINDOW SIZE

Type:

Configuration

Format:

AT S89=n

Example:

AT S89=1 <CR>

Description:

Sets the size of the window for V.42 mode.

Command

Function

í S89=0

V.42 window set to 6 frames.

S89=1

V.42 window set to 7 frames.

S89=2

V.42 window set to 8 frames.

S89=3

V.42 window set to 9 frames.

S89=4

V.42 window set to 10 frames.

S89=5

V.42 window set to 11 frames.

S89=6

V.42 window set to 12 frames.

S89=7

V.42 window set to 13 frames.

S89=8

V.42 window set to 14 frames.

S89=9

V.42 window set to 15 frames.

XON/XOFF PASS-THROUGH

Type:

Configuration

Format:

AT [cmds] \Xn [cmds]

Example:

AT \X7 O<CR>

Description:

Selects whether XON/XOFF signals are sent to remote modem.

Command

Function

í \X0

XON/XOFF signals trapped by local modem.

\X1

XON/XOFF passed through local modem.