Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 7 2012.12.10
3.2.18 AT+CLIP Calling Line Identification Presentation ...................................................63
3.2.19 AT+CLIR Calling Line Identification Restriction.....................................................64
3.2.20 AT+CMEE Report Mobile Equipment Error.............................................................65
3.2.21 AT+COLP Connected Line Identification Presentation ............................................66
3.2.22 AT+COPS Operator Selection...................................................................................67
3.2.23 AT+CPAS Phone Activity Status...............................................................................69
3.2.24 AT+CPBF Find Phonebook Entries...........................................................................69
3.2.25 AT+CPBR Read Current Phonebook Entries ............................................................70
3.2.26 AT+CPBS Select Phonebook Memory Storage.........................................................71
3.2.27 AT+CPBW Write Phonebook Entry..........................................................................72
3.2.28 AT+CPIN Enter PIN..................................................................................................73
3.2.29 AT+CPWD Change Password...................................................................................74
3.2.30 AT+CR Service Reporting Control ...........................................................................75
3.2.31 AT+CRC Set Cellular Result Codes for Incoming Call Indication ...........................76
3.2.32 AT+CREG Network Registration..............................................................................77
3.2.33 AT+CRLP Select Radio Link Protocol Parameters ...................................................78
3.2.34 AT+CRSM Restricted SIM Access ...........................................................................79
3.2.35 AT+CSQ Signal Quality Report ................................................................................80
3.2.36 AT+FCLASS FAX: Select, Read or Test Service Class ............................................81
3.2.37 AT+FMI FAX: Report Manufactured ID...................................................................81
3.2.38 AT+FMM FAX: Report Model ID ............................................................................82
3.2.39 AT+FMR FAX: Report Revision ID .........................................................................82
3.2.40 AT+VTD Tone Duration............................................................................................83
3.2.41 AT+VTS DTMF and Tone Generation......................................................................83
3.2.42 AT+CMUX Multiplexer Control...............................................................................84
3.2.43 AT+CNUM Subscriber Number................................................................................86
3.2.44 AT+CPOL Preferred Operator List............................................................................86
3.2.45 AT+COPN Read Operator Names.............................................................................87
3.2.46 AT+CFUN Set Phone Functionality ..........................................................................88
3.2.47 AT+CCLK Clock.......................................................................................................89
3.2.48 AT+CSIM Generic SIM Access ................................................................................89
3.2.49 AT+CALM Alert Sound Mode..................................................................................90
3.2.50 AT+CALS Alert Sound Select...................................................................................91
3.2.51 AT+CRSL Ringer Sound Level.................................................................................91
3.2.52 AT+CLVL Loud Speaker Volume Level ...................................................................92
3.2.53 AT+CMUT Mute Control..........................................................................................93
3.2.54 AT+CPUC Price Per Unit and Currency Table..........................................................93
3.2.55 AT+CCWE Call Meter Maximum Event ..................................................................94
3.2.56 AT+CBC Battery Charge...........................................................................................95
3.2.57 AT+CUSD Unstructured Supplementary Service Data.............................................96
3.2.58 AT+CSSN Supplementary Services Notification ......................................................97
4 AT Commands According to GSM07.05.....................................................................................99
4.1 Overview of AT Commands According to GSM07.05..........................................................99
4.2 Detailed Descriptions of AT Commands According to GSM07.05.......................................99