May 2003
© Motorola Inc., 2003 98-08901C68-O
g20 AT Commands
CONTENTS
REVISION HISTORY.........................................................................................................................................................ii
1. PREFACE
1.1 SCOPE OF THIS MANUAL...............................................................................................................................................1
1.2 WHO SHOULD USE THIS MANUAL ..............................................................................................................................1
1.3 APPLICABLE DOCUMENTS............................................................................................................................................1
1.4 HOW THIS MANUAL IS ORGANIZED ...........................................................................................................................1
2. PRODUCT FEATURES
2.1 NEW OEM FEATURES......................................................................................................................................................3
2.1.1 STK..........................................................................................................................................................................3
2.1.2 TCP/IP .....................................................................................................................................................................5
2.1.3 Audio .......................................................................................................................................................................6
2.1.4 Java API...................................................................................................................................................................8
2.2 GPRS OPERATION ............................................................................................................................................................9
2.2.1 Overview..................................................................................................................................................................9
2.2.2 Features and Benefits...............................................................................................................................................9
2.2.3 Technical Description (GPRS - Class B Operation)................................................................................................9
2.3 CSD OPERATION ............................................................................................................................................................10
2.3.1 Overview................................................................................................................................................................10
2.3.2 Features and Benefits.............................................................................................................................................10
2.3.3 Technical Description............................................................................................................................................10
2.4 E-OTD................................................................................................................................................................................11
2.4.1 Overview................................................................................................................................................................11
2.4.2 Features and Benefits.............................................................................................................................................11
2.4.3 Technical Description............................................................................................................................................11
2.5 MUX INTEGRATION ......................................................................................................................................................11
2.5.1 Overview................................................................................................................................................................11
2.5.2 Features and Benefits.............................................................................................................................................12
2.5.3 Technical Description............................................................................................................................................13