Important Notice...............................................................................................................................3
Safety and Hazards............................................................................................................................3
Limitations of Liability .......................................................................................................................3
Copyright...........................................................................................................................................4
Trademarks........................................................................................................................................4
Contact Information..........................................................................................................................4
Contents ............................................................................................................................................5
1. Overview ...................................................................................................................................7
1.1. Document History .........................................................................................................7
1.2. References.....................................................................................................................8
1.3. Abbreviations ................................................................................................................8
1.4. Products List ..................................................................................................................8
1.5. Presentation Rules ........................................................................................................9
1.6. AT Command Syntax......................................................................................................9
2. Introduction ..............................................................................................................................9
2.1. Features.........................................................................................................................9
2.2. Application ..................................................................................................................10
3. Device Connection ..................................................................................................................10
4. Commonest Command ...........................................................................................................12
5. SMS Function ..........................................................................................................................13
5.1. GSM/GPRS SMS Function............................................................................................13
5.1.1. GSM/GPRS Query SMS Center ........................................................................13
5.1.2. GSM/GPRS ASCII Message...............................................................................13
5.1.3. GSM/GPRS PDU Message................................................................................13
5.1.4. GSM/GPRS Message Relate Command ...........................................................14
5.1.5. GSM/GPRS Receive SMS..................................................................................14
5.2. CDMA SMS Function ...................................................................................................15
5.2.1. CDMA Send ASCII SMS ....................................................................................15
5.2.2. CDMA Send Unicode SMS ...............................................................................15
5.2.3. CDMA Commonest SMS Command ................................................................15
5.2.4. CDMA Receive SMS .........................................................................................15
5.3. SMS Process ................................................................................................................16
6. Dial Up.....................................................................................................................................16
6.1. Phone and Modem Option4........................................................................................17
6.2. Setting the 19200 Modem ..........................................................................................20
6.3. Add Connection...........................................................................................................22
6.4. Dial Up.........................................................................................................................28
6.5. APN/VPDN Setting.......................................................................................................29
6.5.1. GPRS APN Setting ............................................................................................29
6.5.2. VPDN Setting ...................................................................................................30
7. CSD ..........................................................................................................................................30
