Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 6 2012.12.10
2.2.20 ATS6 Pause Before Blind Dialling............................................................................31
2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion..........................31
2.2.22 ATS8 Set Number of Seconds to Wait for Comma Dial Modifier Encountered in Dial
String of D Command .............................................................................................................31
2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier..............32
2.2.24 ATT Select Tone Dialing ...........................................................................................32
2.2.25 ATV TA Response Format .......................................................................................33
2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress .....................34
2.2.27 ATZ Reset Default Configuration .............................................................................34
2.2.28 AT&C Set DCD Function Mode ...............................................................................35
2.2.29 AT&D Set DTR Function Mode................................................................................35
2.2.30 AT&F Factory Defined Configuration ......................................................................36
2.2.31 AT&V Display Current Configuration ......................................................................38
2.2.32 AT&W Store Active Profile ......................................................................................38
2.2.33 AT+GCAP Request Complete TA Capabilities List ..................................................39
2.2.34 AT+GMI Request Manufacturer Identification .........................................................39
2.2.35 AT+GMM Request TA Model Identification ............................................................39
2.2.36 AT+GMR Request TA Revision Identification of Software Release.........................40
2.2.37 AT+GOI Request Global Object Identification.........................................................40
2.2.38 AT+GSN Request TA Serial Number Identification (IMEI) .....................................41
2.2.39 AT+ICF Set TE-TA Control Character Framing........................................................41
2.2.40 AT+IFC Set TE-TA Local Data Flow Control ..........................................................42
2.2.41 AT+IPR Set TE-TA Fixed Local Rate .......................................................................43
2.2.42 AT+HVOIC Disconnect Voice Call Only..................................................................44
3 AT Commands According to GSM07.07.....................................................................................45
3.1 Overview of AT Command According to GSM07.07 ...........................................................45
3.2 Detailed Descriptions of AT Command According to GSM07.07 ........................................46
3.2.1 AT+CACM Accumulated Call Meter (ACM) Reset or Query....................................46
3.2.2 AT+CAMM Accumulated Call Meter Maximum (ACM max) Set or Query .............47
3.2.3 AT+CAOC Advice of Charge .....................................................................................48
3.2.4 AT+CBST Select Bearer Service Type........................................................................49
3.2.5 AT+CCFC Call Forwarding Number and Conditions Control....................................50
3.2.6 AT+CCWA Call Waiting Control ................................................................................51
3.2.7AT+CEER Extended Error Report ...............................................................................53
3.2.8 AT+CGMI Request Manufacturer Identification ........................................................55
3.2.9 AT+CGMM Request Model Identification..................................................................55
3.2.10 AT+CGMR Request TA Revision Identification of Software Release......................56
3.2.11 AT+CGSN Request Product Serial Number Identification (Identical with +GSN)...56
3.2.12 AT+CSCS Select TE Character Set...........................................................................56
3.2.13 AT+CSTA Select Type of Address ............................................................................57
3.2.14 AT+CHLD Call Hold and Multiparty........................................................................58
3.2.15 AT+CIMI Request International Mobile Subscriber Identity....................................59
3.2.16 AT+CLCC List Current Calls of ME.........................................................................60
3.2.17 AT+CLCK Facility Lock...........................................................................................61