Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 45 2012.12.10
3 AT Commands According to GSM07.07
3.1 Overview of AT Command According to GSM07.07
Command Description
AT+ CA CM ACCUMULATED CALL METER(ACM) RESET OR QUERY
AT+CAMM ACCUMULATED CALL METER MAXIMUM(ACM MAX) SET OR
QUERY
AT+CAOC ADVICE OF CHARGE
AT+CBST SELECT BEARER SERVICE TYPE
AT+CCFC CALL FORWARDING NUMBER AND CONDITIONS CONTROL
AT+CCWA CALL WAITING CONTROL
AT+CEER EXTENDED ERROR REPORT
AT+ CG MI REQUEST MANUFACTURER IDENTIFICATION
AT+CGMM REQUEST MODEL IDENTIFICATION
AT+ CG MR REQUEST TA REVISION IDENTIFICATION OF SOFTWARE
RELEASE
AT+CGSN REQUEST PRODUCT SERIAL NUMBER IDENTIFICATION
(IDENTICAL WITH +GSN)
AT+CSCS SELECT TE CHARACTER SET
AT+ CS TA SELECT TYPE OF ADDRESS
AT+CHLD CALL HOLD AND MULTIPARTY
AT+CIMI REQUEST INTERNATIONAL MOBILE SUBSCRIBER IDENTITY
AT+CLCC LIST CURRENT CALLS OF ME
AT+ CL CK FACILITY LOCK
AT+ CL IP CALLING LINE IDENTIFICATION PRESENTATION
AT+ CL IR CALLING LINE IDENTIFICATION RESTRICTION
AT+CMEE REPORT MOBILE EQUIPMENT ERROR
AT+ CO LP CONNECTED LINE IDENTIFICATION PRESENTATION
AT+COPS OPERATOR SELECTION
AT+ CPA S PHONE ACTIVITY STATUS
AT+CPBF FIND PHONEBOOK ENTRIES
AT+CPBR READ CURRENT PHONEBOOK ENTRIES
AT+CPBS SELECT PHONEBOOK MEMORY STORAGE
AT+ CP BW WRITE PHONEBOOK ENTRY
AT+ CP IN ENTER PIN
AT+ CP WD CHANGE PASSWORD
AT+CR SERVICE REPORTING CONTROL