User guide

Developers guidelines | AT commands
10 June 2010
Overview
Introduction
This document describes the operation of AT commands supported by Sony Ericsson
phones.
This reference document is helpful for advanced users who require detailed
information in order to:
• Develop new communications software.
• Add the mobile phone to a list of compatible modems in an application.
• Adjust the settings of their mobile phones.
Communications programs
Please refer to the User guide and support information found on
www.sonyericsson.com
for instructions on the installation and use of the Sony
Ericsson built-in modem software drivers.
Configuring third-party communications programs
If you want to use a communications program which does not include the Sony
Ericsson built-in modem in the list of supported hardware, the following options are
suggested:
Configure for V.25ter
The built-in modem supports the V.25ter command set. If your communications
program can generate and support a V.25ter command, the built-in modem does not
require the installation of a specific driver.
Locate a mobile phone modem driver
A Mobile Phone Modem driver for the communications program may be available on
either the Sony Ericsson disk supplied with the phone or from one of the online
services, for example, the support pages on www.sonyericsson.com
Configure the data communications program manually
To configure your data communications program manually:
1. Select a generic mobile phone modem driver from the list.
2. Set the Init string to AT&F
3. Set the optional setup string to Asynchronous RLP: AT+CBST=0,0,1