June 30, 2008 AT Commands Reference Manual xxi
Preface

Manual Scope

This manual introduces the G24 AT commands, and describes how software developers can use
these commands to communicate with the G24 device, and to create software applications that
communicate with the G24 using these commands.
Note: The integrator should read the corresponding SW release notes for the G24 version he is
using to get information about differences from this manual.

Target Audience

This manual is intended for software developers who communicate with the G24 device using the
AT commands, and create applications to communicate with the G24 device using the AT
commands.

Manual Organization

This manual contains the following chapters:
“Preface” provides a scope for this manual, document convention, safety instructions and a
liability notification.
“Chapter 1: Product Features” introduces the new product features and provides a list of the
AT commands.
“Chapter 2: Introduction to ATCommands” provides an introduction to the AT commands,
and includes a general explanation of the command’s format and usage. It also describes
supported character sets and error handling.
“Chapter 3: AT Commands Reference” provides a reference to all available AT commands,
including examples, where relevant.
“Chapter 4: Using the Commands” provides scenarios and examples for implementing
various G24 functionality, including G24 setup and connectivity, SMS, call control, data
calls, GPRS, Sleep mode, audio, TCP/IP, STK and MUX user integration.
“Chapter 5: Tools” describes the PC Driver and PC Loader tools provided by the
application.
“Appendix A: Reference Tables” provides conversions between different character sets. It
also provides an alphabetical list of all the AT commands.
“Appendix B: MUX” describes the MUX’s PREMUX and MUX states.