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1.1
SCOPE OF THIS MANUAL
This manual introduces the g20 AT commands, and describes how software developers can use these commands to
communicate with the g20 device, and to create software applications that communicate with the g20 using these commands.
We at Motorola want to make this guide as helpful as possible. Keep us informed of your comments and suggestions for
improvements.
You can reach us by email: GSM support-BSH015@email.mot.com.
1.2
WHO SHOULD USE THIS MANUAL
This manual is intended for software developers who communicate with the g20 device using the AT commands, and create
applications to communicate with the g20 device using the AT commands.
1.3
APPLICABLE DOCUMENTS
g20 Cellular Engine Module Description – 9808901C66-O
g20 Developer's Kit – 9808901C67-O
1.4
HOW THIS MANUAL IS ORGANIZED
This manual contains the following chapters:
• Chapter 1 contains this Preface.
• Chapter 2 introduces the product features and provides a list of the AT commands.
• Chapter 3 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 4 provides a reference to all available AT commands, including examples, where relevant.
• Chapter 5 provides scenarios and examples for implementing various g20 functionality, including g20 setup and
connectivity, SMS, call control, data calls, GPRS, Sleep mode, audio, STK, TCP/IP and Mux user integration.
• Chapter 6 describes the various tools provided by the application, including PC Loader, PC Driver, Data Logger and Mux.
• Appendix A provides conversions between different chararcter sets. It also provides an alphabetical list of all the AT
commands.
98-08901C68-O
1.
PREFACE
1
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Table of Contents
