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Chapter 5 Network Service Commands.......................................................................5-1
Signal Quality: +CSQ.............................................................................................................. 5-2
Operator Selection: +COPS..................................................................................................... 5-2
Network Registration: +CREG................................................................................................ 5-4
Operator List Management: +WOLM ..................................................................................... 5-5
Read Operator Name: +WOPN................................................................................................ 5-6
Selection of Preferred PLMN List: +CPLS ............................................................................. 5-8
Preferred Operator List: +CPOL.............................................................................................. 5-9
Read Operator Name: +COPN................................................................................................5-11
Chapter 6 Security Commands ....................................................................................6-1
Enter PIN: +CPIN.................................................................................................................... 6-2
Enter PIN2: +CPIN2................................................................................................................ 6-3
PIN Remaining Attempt Number: +CPINC............................................................................. 6-4
Facility Lock: +CLCK............................................................................................................. 6-5
Change Password: +CPWD..................................................................................................... 6-7
Chapter 7 Short Message Commands.........................................................................7-1
Parameter Definitions .............................................................................................................. 7-2
Select Message Service: +CSMS............................................................................................. 7-3
New Message Acknowledgement: +CNMA............................................................................ 7-3
Preferred Message Storage: +CPMS........................................................................................ 7-5
Preferred Message Format: +CMGF........................................................................................ 7-6
Save Settings: +CSAS ............................................................................................................. 7-7
Restore Settings: +CRES......................................................................................................... 7-7
Show Text Mode Parameters: +CSDH .................................................................................... 7-7
New Message Indication: +CNMI ........................................................................................... 7-8
Read Message: +CMGR.......................................................................................................... 7-9
List Message: +CMGL .......................................................................................................... 7-10
Send Message: +CMGS..........................................................................................................7-11
Write Message to Memory: +CMGW.................................................................................... 7-12
Send Message From Storage: +CMSS................................................................................... 7-13
Set Text Mode Parameters: +CSMP ...................................................................................... 7-13
Delete Message: +CMGD...................................................................................................... 7-14
Service Center Address: +CSCA ........................................................................................... 7-15
Select Cell Broadcast Message Types: +CSCB ..................................................................... 7-16
Cell Broadcast Message Identifiers: +WCBM....................................................................... 7-16
Message Status Modification: +WMSC................................................................................. 7-17
Message Overwriting: +WMGO............................................................................................ 7-17
Un-change SMS Status: +WUSS........................................................................................... 7-18
Copy Messages: +WMCP...................................................................................................... 7-19
More Messages to Send: +CMMS......................................................................................... 7-21
Chapter 8 Data Commands...........................................................................................8-1
Using AT Commands During a Data Connection .................................................................... 8-2
Bearer Type Selection: +CBST................................................................................................ 8-2
Select Mode: +FCLASS .......................................................................................................... 8-3
Service Reporting Control: +CR.............................................................................................. 8-3
Cellular Result Codes: +CRC.................................................................................................. 8-4
DTE-DCE Local Rate Reporting: +ILRR................................................................................ 8-4
Radio Link Protocol Parameters: +CRLP................................................................................ 8-5
Select Data Compression: %C................................................................................................. 8-6
V42 bis Data Compression: +DS............................................................................................. 8-6
V42 bis Data Compression Report: +DR................................................................................. 8-7