AT Commands Table

AT Data Commands

The shaded portion of the table are stored with the AT&W command.

 

Command

Specification

Default

 

 

 

 

 

A/

 

 

Repeat last command.

 

 

 

 

 

 

A

 

 

Answer command.

 

 

 

 

 

 

D

 

 

Dial

 

 

 

 

 

 

 

 

T

123456789*0#ABCD

3

 

 

 

 

 

 

 

P

1234567890

 

 

 

 

 

 

 

 

W

Wait for dial tone. Modem waits for a second dial tone before processing the

 

 

 

 

dial string.

 

 

 

 

 

 

 

 

@

Wait for quiet answer.

 

 

 

 

 

 

 

 

Pause for a time specified by S8 before dialing.

 

 

 

 

 

 

 

 

!

Hook flash

 

 

 

 

 

 

 

 

;

Return to command mode after processing command.

 

 

 

 

 

 

 

 

S=n

Dial a telephone number previously stored using the &Zn=x command. The

 

 

 

 

range of n is 0-3.

 

 

 

 

 

 

E

 

0

Disables echo to the computer

 

 

 

 

 

 

 

 

1

Enables echo to the computer

3

 

 

 

 

 

H

 

0

Modem goes on-hook

3

 

 

 

 

 

 

 

1

Modem goes off-hook

 

 

 

 

 

 

I

 

0

Returns modem identity string and driver version number, same as I3

 

 

 

 

 

 

 

 

1

Calculates ROM checksum and displays it on the DTE.

 

 

 

 

 

 

 

 

2

Performs a ROM check and calculates and verifies the checksum, displaying

 

 

 

 

OK or ERROR.

 

 

 

 

 

 

 

 

3

Returns modem identity string and driver version number, same as I0

 

 

 

 

 

 

L

 

0

Selects low volume.

 

 

 

 

 

 

 

 

1

Selects low volume.

 

 

 

 

 

 

 

 

2

Selects medium volume.

3

 

 

 

 

 

 

 

3

Selects high volume.

 

 

 

 

 

 

M

 

0

The speaker is off.

 

 

 

 

 

 

 

 

1

The speaker is on until the modem detects the carrier signal.

3

 

 

 

 

 

 

 

2

The speaker is always on when modem is off-hook.

 

 

 

 

 

 

 

 

3

The speaker is on until the carrier is detected, except while dialing.

 

 

 

 

 

 

AT Commands Table

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Fujitsu FMW4503TS128A01 manual AT Commands Table, AT Data Commands, Command Specification Default