Sony Ericsson GM47, GM48 manual Introduction to AT Commands, Syntax Description

1. Introduction to AT Commands

1.1 Overview

AT commands, issued from a computer in your application are used to control and implement the functions of the module.

Using AT commands, the following actions are possible:

•Control of DCE

•GPRS

•Call control

•Supplementary Service

•SIM application tool kit

The GM47 contains a large number of Ericsson-specific commands in addition to those implemented in accordance with the GSM and ITU-T recommendations. These commands are provided to enhance the functions of the module. The Ericsson-specific commands are identified by the asterisk that precedes the command (see the syntax description provided below).

Note! Only commands that are listed in the Integrator’s Manual are supported unless otherwise stated. Other commands may be listed by the module but these are only included for historical or legacy reasons.

1.2 Syntax Description

This section provides a brief description of the syntax used for the GM47, AT command set. See the ITU-T recommendation V.25ter for additional information.

1.2.1 Conventions

In this manual, the following conventions are used to explain the AT commands.

<command>	The name of the command that is to be entered.
<parameter>	The parameter values that are defined for a certain
	command.
<CR>	The command line is terminated by the Carriage
	Return (or Enter key) or ATS3 command.
<LF>	Line feed character or ATS4 command.

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