User's Manual Part 1

ii
Revision 1.8 P/N 90023363
Mounting Features.........................................................................................................................38
Air Interface .................................................................................................................. 38
Subscriber Identification Module (SIM)...................................................................... 39
Modes of Operation ..................................................................................................... 40
Sleep..............................................................................................................................................40
SMS Messaging.............................................................................................................................40
Circuit Switched .............................................................................................................................40
GPRS Data ....................................................................................................................................40
Standby..........................................................................................................................................41
Application Information............................................................................................... 41
Chapter 3: AT Commands
AT Command Set by Function .............................................................................................................44
AT Command Set by Name .................................................................................................................53
A/..........................................................................................................................................................53
+++ .......................................................................................................................................................53
ATA ......................................................................................................................................................54
ATD[<n>][mgsm>] ................................................................................................................................54
ATD[<mem><loc>][<mgsm>] ...............................................................................................................56
ATD[<ploc>][<mgsm>] .........................................................................................................................57
ATD[<str>][<mgsm>] ............................................................................................................................59
ATDL ....................................................................................................................................................61
ATE ......................................................................................................................................................62
ATH ......................................................................................................................................................62
ATI........................................................................................................................................................63
ATI0......................................................................................................................................................63
ATL.......................................................................................................................................................63
ATM......................................................................................................................................................64
ATO......................................................................................................................................................64
ATP ......................................................................................................................................................65
ATQ......................................................................................................................................................65
ATS0 ....................................................................................................................................................66
ATS2 ....................................................................................................................................................66
ATS3 ....................................................................................................................................................67
ATS4 ....................................................................................................................................................67
ATS5 ....................................................................................................................................................68
ATS6 ....................................................................................................................................................69
ATS7 ....................................................................................................................................................69
ATS8 ....................................................................................................................................................70
ATS10 ..................................................................................................................................................70
ATS12 ..................................................................................................................................................71
ATT ......................................................................................................................................................71
ATV ......................................................................................................................................................72
ATX ......................................................................................................................................................72
ATZ ......................................................................................................................................................73
AT&C....................................................................................................................................................74
AT&D....................................................................................................................................................74
AT&F ....................................................................................................................................................74
AT&V ....................................................................................................................................................75
AT&W ...................................................................................................................................................76