User guide
Developers guidelines | AT commands
2 June 2010
This document is published by Sony Ericsson
Mobile Communications AB, without any
warranty*. Improvements and changes to this
text necessitated by typographical errors,
inaccuracies of current information or
improvements to programs and/or equipment,
may be made by Sony Ericsson Mobile
Communications AB at any time and without
notice. Such changes will, however, be
incorporated into new editions of this document.
Printed versions are to be regarded as temporary
reference copies only.
*All implied warranties, including without
limitation the implied warranties of
merchantability or fitness for a particular
purpose, are excluded. In no event shall
Sony Ericsson or its licensors be liable for
incidental or consequential damages of any
nature, including but not limited to lost profits or
commercial loss, arising out of the use of the
information in this document.
These Developers guidelines are published by:
Sony Ericsson Mobile Communications AB,
SE-221 88 Lund, Sweden
Phone: +46 46 19 40 00
Fax: +46 46 19 41 00
www.sonyericsson.com/
© Sony Ericsson Mobile Communications AB,
2006. All rights reserved. You are hereby granted
a license to download and/or print a copy of this
document.
Any rights not expressly granted herein are
reserved.
17th edition (June 2010)
Publication number: 1206-6103.17
Preface
Purpose of this document
The Developers guideline for AT commands is designed to give the reader a deeper insight into how to
design applications with AT commands supported by mobile phones. The information here is not relevant
for the day-to-day operation of the phone. This is described in the User guide supplied with the mobile
phone.
This document is 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.
People who can benefit from this document include:
• Application providers
• Content providers
• Content aggregators
• Operators and service providers
• Software developers
• Business decision-makers
It is assumed that the reader has a basic understanding of AT commands.










