Table of Contents
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 5
Cell Broadcast Message Identifiers +WCBM .......................................................................................................... 75
Message Status Modification +WMSC ................................................................................................................... 75
Message Overwriting +WMGO ............................................................................................................................... 76
Change or Do Not Change SMS Status +WUSS ................................................................................................... 77
Copy Messages +WMCP ....................................................................................................................................... 78
More Messages to Send +CMMS .......................................................................................................................... 79
Chapter 10 – Supplementary Services Commands .................................................................................................. 80
Call Forwarding +CCFC .......................................................................................................................................... 80
Call Barring +CLCK ................................................................................................................................................ 81
Modify SS Password +CPWD ................................................................................................................................ 81
Call Waiting +CCWA .............................................................................................................................................. 82
Calling Line Identification Restriction +CLIR .......................................................................................................... 83
Calling Line Identification Presentation +CLIP ....................................................................................................... 83
Connected Line Identification Presentation +COLP ............................................................................................... 84
Advice of Charge +CAOC ...................................................................................................................................... 85
Accumulated Call Meter +CACM ............................................................................................................................ 85
Accumulated Call Meter Maximum +CAMM ........................................................................................................... 86
Price Per Unit and Currency Table +CPUC ............................................................................................................ 86
Call Related Supplementary Services +CHLD ....................................................................................................... 87
List Current Calls +CLCC ....................................................................................................................................... 88
Supplementary Service Notifications +CSSN ......................................................................................................... 89
Unstructured Supplementary Service Data +CUSD ............................................................................................... 90
Closed User Group +CCUG .................................................................................................................................... 91
Chapter 11 – Data Commands .................................................................................................................................... 92
Using AT Commands During a Data Connection ..................................................................................................... 92
Bearer Type Selection +CBST ............................................................................................................................... 93
Select Mode +FCLASS .......................................................................................................................................... 94
Service Reporting Control +CR ............................................................................................................................... 94
Cellular Result Codes +CRC .................................................................................................................................. 95
DTE-DCE Local Rate Reporting +ILRR.................................................................................................................. 95
Radio Link Protocol Parameters +CRLP ................................................................................................................ 96
Other Radio Link Parameters +DOPT ..................................................................................................................... 96
Select Data Compression %C ................................................................................................................................. 97
V42bis Data Compression +DS .............................................................................................................................. 97
V42bis Data Compression Report +DR .................................................................................................................. 98
Select Data Error Correcting Mode \N .................................................................................................................... 98
Chapter 12 – V.24 and V.25 Commands ..................................................................................................................... 99
Fixed DTE Rate +IPR ............................................................................................................................................. 99
DTE-DCE Character Framing +ICF ...................................................................................................................... 100
DTE-DCE Local Flow Control +IFC ...................................................................................................................... 101
Set DCD Signal &C .............................................................................................................................................. 101
Set DTR Signal &D ............................................................................................................................................... 102
Set DSR Signal &S ............................................................................................................................................... 102
Back to Online Mode O ......................................................................................................................................... 102
Result Code Suppression Q ................................................................................................................................. 102
DCE Response Format V ..................................................................................................................................... 103
Default Configuration Z ........................................................................................................................................ 103
Save Configuration &W ......................................................................................................................................... 103
Auto-Tests &T ...................................................................................................................................................... 104
Echo E .................................................................................................................................................................. 104
Restore Factory Settings &F ................................................................................................................................ 104
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