Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 16 23.06.2010
ATV TA RESPONSE FORMAT
ATX SET CONNECT RESULT CODE FORMAT AND MONITOR CALL
PROGRESS
ATZ SET ALL CURRENT PARAMETERS TO USER DEFINED PROFILE
AT& C SET DCD FUNCTION MODE
AT& D SET DTR FUNCTION MODE
AT& F SET ALL CURRENT PARAMETERS TO MANUFACTURER
DEFAULTS
AT& V DISPLAY CURRENT CONFIGURATION
AT& W STORE CURRENT PARAMETER TO USER DEFINED PROFILE
AT+ GC AP REQUEST COMPLETE TA CAPABILITIES LIST
AT+ GM I REQUEST MANUFACTURER IDENTIFICATION
AT+GMM REQUEST TA MODEL IDENTIFICATION
AT+ GM R REQUEST TA REVISION INDENTIFICATION OF SOFTWARE
RELEASE
AT+GOI REQUEST GLOBAL OBJECT IDENTIFICATION
AT+ GS N REQUEST TA SERIAL NUMBER IDENTIFICATION
AT+ IC F SET TE-TA CONTROL CHARACTER FRAMING
AT+ IF C SET TE-TA LOCAL DATA FLOW CONTROL
AT+ IP R SET TE-TA FIXED LOCAL RATE
AT+HVOIC DISCONNECT VOICE CALL ONLY
2.2 Detailed Description of AT Commands According to V.25TER
2.2.1 A/ Re-issues the Last Command Given
A/ Re-issues the Last Command Given
Response
Re-issues the previous Command
Execution
Command
A/
Parameter
Reference
V.25ter
Note
2.2.2 ATA ANSWER AN INCOMING CALL
ATA ANSWER AN INCOMING CALL