
CONTENTS
5 AT Commands for EV-DO-EV3 Modems
Escape Character S2 .................................................................................................................................................... 47
Command Line Termination Character S3 .................................................................................................................. 47
Response Formatting Character S4 ............................................................................................................................. 47
Command Line Editing Character S5 ........................................................................................................................... 48
Connection Completion Timeout S7 ........................................................................................................................... 48
Escape Prompt Delay S12 .......................................................................................................................................... 49
Delay to DTR Off S25 ................................................................................................................................................... 49
Error Control ..................................................................................................................................................................... 50
Error Control Selection +ES ........................................................................................................................................ 50
3GPP TS 27.007 AT Commands ................................................................................................................................. 52
General .............................................................................................................................................................................. 52
Request Manufacturer Identification +CGMI.............................................................................................................. 52
Request Model Identification +CGMM ....................................................................................................................... 52
Request Revision Identification +CGMR ..................................................................................................................... 52
Request Product Serial Number Identification +CGSN ............................................................................................... 53
Select TE Character Set +CSCS..................................................................................................................................... 53
International Mobile Subscriber Identity (IMSI) +CIMI ............................................................................................... 53
Multiplexing Mode +CMUX ......................................................................................................................................... 54
Call Control ........................................................................................................................................................................ 55
Hang Up Call +CHUP .................................................................................................................................................... 55
Extended Error Report +CEER ..................................................................................................................................... 55
Cellular Result Codes +CRC ......................................................................................................................................... 55
Voice Hang Up Control +CVHU .................................................................................................................................... 56
Network Service Handling ................................................................................................................................................. 57
Subscriber Number +CNUM ........................................................................................................................................ 57
Read Operator Names +COPN .................................................................................................................................... 57
Network Registration Report +CREG .......................................................................................................................... 58
Calling Line Identification Presentation +CLIP ............................................................................................................ 59
Call Waiting +CCWA .................................................................................................................................................... 60
Call Holding Services +CHLD ........................................................................................................................................ 61
List Current Calls +CLCC............................................................................................................................................... 61
Mobile Equipment Control ................................................................................................................................................ 62
Phone Activity Status +CPAS ....................................................................................................................................... 62
Set Phone Functions +CFUN ........................................................................................................................................ 63
Signal Quality +CSQ ..................................................................................................................................................... 64
Select Phonebook Memory Storage +CPBS ................................................................................................................ 65
Read Phonebook Entries +CPBR .................................................................................................................................. 65
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