Data Sheet
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  7  2015-08-03 
6.2.11 AT+CFGRI Indicate RI When Using URC ............................................................151 
6.2.12 AT+CLTS Get Local Timestamp............................................................................152 
6.2.13 AT+CLDTMF Local DTMF Tone Generation.......................................................154 
6.2.14 AT+CDRIND CS Voice/Data Call Termination Indication ...................................155 
6.2.15 AT+CSPN Get Service Provider Name from SIM ..................................................156 
6.2.16 AT+CCVM Get and Set the Voice Mail Number on the SIM .................................156 
6.2.17 AT+CBAND Get and Set Mobile Operation Band .................................................157 
6.2.18 AT+CHF Configure Hands Free Operation.............................................................158 
6.2.19 AT+CHFA Swap the Audio Channels .....................................................................159 
6.2.20 AT+CSCLK Configure Slow Clock ........................................................................160 
6.2.21 AT+CENG Switch on or off Engineering Mode .....................................................161 
6.2.22 AT+SCLASS0 Store Class 0 SMS to SIM When Received Class 0 SMS ..............163 
6.2.23 AT+CCID Show ICCID ..........................................................................................164 
6.2.24 AT+CMTE Set Critical Temperature Operating Mode or Query Temperature......164 
6.2.25 AT+CMGDA Delete All SMS................................................................................165 
6.2.26 AT+STTONE Play SIM Toolkit Tone....................................................................166 
6.2.27 AT+SIMTONE Generate Specifically Tone...........................................................167 
6.2.28 AT+CCPD Enable or Disable Alpha String............................................................168 
6.2.29 AT+CGID Get SIM Card Group Identifier.............................................................168 
6.2.30 AT+MORING Show State of Mobile Originated Call............................................169 
6.2.31 AT+CMGHEX Enable or Disable Sending Non-ASCII Character SMS ...............170 
6.2.32 AT+CCODE Configure SMS Code Mode..............................................................170 
6.2.33 AT+CIURC Enable or Disable Initial URC Presentation .......................................171 
6.2.34 AT+CPSPWD Change PS Super Password ............................................................172 
6.2.35 AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications .................172 
6.2.36 AT+CGMSCLASS Change GPRS Multislot Class ................................................173 
6.2.37 AT+CDEVICE View Current Flash Device Type ..................................................174 
6.2.38 AT+CCALR Call Ready Query ..............................................................................174 
6.2.39 AT+GSV Display Product Identification Information.............................................174 
6.2.40 AT+SGPIO Control the GPIO.................................................................................175 
6.2.41 AT+SPWM Generate the Pulse-Width-Modulation ................................................176 
6.2.42 AT+ECHO Echo Cancellation Control ...................................................................176 
6.2.43 AT+CAAS Control Auto Audio Switch ..................................................................177 
6.2.44 AT+SVR    Configure Voice Coding Type for Voice Calls.........................................178 
6.2.45 AT+GSMBUSY Reject Incoming Call....................................................................179 
6.2.46 AT+CEMNL    Set the List of Emergency Number ...................................................180 
6.2.47 AT*CELLLOCK Set the List of ARFCN Which Needs to Be Locked...................181 
6.2.48 AT+SLEDS Set the Timer Period of Net Light .......................................................182 
6.2.49 AT+CBUZZERRING Use the Buzzer Sound as the Incoming Call Ring...............183 
6.2.50 AT+CEXTERNTONE Close or Open the Microphone...........................................183 
6.2.51 AT+CNETLIGHT Close the Net Light or Open It to Shining ................................184 
6.2.52 AT+CWHITELIST    Set the White List ....................................................................185 
6.2.53 AT+CSDT Switch on or off Detecting SIM Card...................................................186 
6.2.54 AT+CSMINS SIM Inserted Status Reporting.........................................................186 










