MultiMobile SoftGSM User Guide

Introduction

This chapter describes all of the AT commands, S-Registers and Result Codes supported by MultiMobile SoftGSM. This information is also available at the MultiMobile SoftGSM website at http:// www.softgsm.com.

International Modem Restrictions

Some dialing and answering defaults and restrictions may vary for international modems. Changing settings may cause a modem to become non-compliant with national telecom requirements in specific countries. Also note that some software packages may have features or lack restrictions that may cause the modem to become non-compliant.

Standard AT Commands

AT

Attention

Syntax

AT

 

Description

Used to see if modem is responding. Just returns OK.

A

Answer incoming call

Syntax

ATA

 

Description

The ATA command is used to make the modem answer an incoming call. If there is

 

no incoming call, the command will return OK and do nothing.

D

Dial number

Syntax

ATDn where n is the number to be dialed.

Description

The ATD command is used to make an outgoing call. The number specified is dialed

 

and the modem tries to establish a connection. For a GSM-call the area code must

 

always be included in the number to be dialed.

DTn

Dial number (tone dialing)

Syntax

ATDTn where n is the number to be tone dialed.

Description

The ATDT command is used to make an outgoing call. The number specified is tone

 

dialed and the modem tries to establish a connection. For a GSM-call, the area code

 

must always be included in the number to be dialed.

DPn

Dial number (pulse dialing)

Syntax

ATDPn where n is the number to be tone dialed.

Description

The ATDP command is used to make an outgoing call. The number specified is pulse

 

dialed and the modem tries to establish a connection. For a GSM-call, the area code

 

must always be included in the number to be dialed.

H

Hang up

Syntax

ATH

 

Description

The ATH command hangs up an ongoing call.

ATI

Identify Modem

Syntax

ATIn where n is as follows

Description

The ATI command is used to show information about the modem

 

ATI0

Displays modem Manufacturer, Product name

 

ATI2

Displays coderevision of modem software

 

ATI3

Displays coderevision of modem software

 

ATI9

Displays modem Manufacturer, Product name

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MTSGSM

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Multi-Tech Systems MTSGSM manual Standard AT Commands, International Modem Restrictions, DTn, DPn, Ati

MTSGSM specifications

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