Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 126 2012.12.10
AT+STTONE PLAY SIM TOOLKIT TONE
AT+SIMTONE GENERATE SPECIFIC TONE
AT+CCPD ENABLE OR DISABLE ALPHA STRING
AT+CGID GET SIM CARD GROUP IDENTIFIER
AT+MORING SHOW STATE OF MOBILE ORIGINATED CALL
AT+CMGHEX ENABLE OR DISABLE SENDING NON-ASCII CHARACTER
SMS
AT+CCODE CONFIGURE SMS CODE MODE
AT+CIURC ENABLE OR DISABLE INITIAL URC PRESENTATION
AT+CPSPWD CHANGE PS SUPER PASSWORD
AT+EXUNSOL ENABLE OR DISABLE PROPRIETARY UNSOLICITED
INDICATIONS
AT+CGMSCLASS CHANGE GPRS MULTISLOT CLASS
AT+CDEVICE VIEW CURRENT FLASH DEVICE TYPE
AT+CCALR CALL READY QUERY
AT+ GS V DISPLAY PRODUCT IDENTIFICATION INFORMATION
AT+SGPIO CONTROL THE GPIO
AT+SPWM GENERATE THE PULSE-WIDTH-MODULATION
AT+ECHO ECHO CANCELLATION CONTROL
AT+CAAS CONTROL AUTO AUDIO SWITCH
AT+ SV R CONFIGURE VOICE CODING TYPE FOR VOICE CALLS
AT+GSMBUSY REJECT INCOMING CALL
AT+ C E M N L SET THE LIST OF EMERGENCY NUMBER
AT*CELLLOCK SET THE LIST OF ARFCN WHICH NEEDS TO BE LOCKED
AT+SLEDS SET THE TIMER PERIOD OF NET LIGHT
AT+CCHGMODE INDICATES IF THE MODULE IS POWERED OFF
AT+CBUZZERRING USE THE BUZZER SOUND AS THE INCOMING CALL RING
AT+CEXTERNTONE CLOSE OR OPEN THE MICROPHONE
AT+CNETLIGHT CLOSE THE NET LIGHT OR OPEN IT TO SHINING
AT+CWHITELIST SET THE WHITE LIST
AT+CUSACC ACCELERATE UART RESPONSE SPEED
AT+CNETSCAN PERFORMING A NET SURVEY TO SHOW ALL THE CELLS
INFORMATION
AT+CSGS NETLIGHT INDICATION OF GPRS STATUS
AT+SKPD ENABLE KEYPAD INDICATION
6.2 Detailed Descriptions of Commands