Specifications
SIM900 AT Command Manual       
SIM900_AT Command Manual_V1.03  139  12/24/2010 
6.2.25 AT+SCLASS0 Store Class 0 SMS to SIM When Received Class 0 SMS 
AT+SCLASS0 Store Class 0 SMS to SIM When Module Received Class 0 SMS 
Response 
+SCLASS0: (0, 1) 
OK 
Test Command 
AT+SCLASS0=? 
Parameter 
See Write Command 
Response 
+SCLASS0: <mode> 
OK 
Read Command 
AT+SCLASS0? 
Parameter 
See Write Command 
Response 
OK 
ERROR 
Write Command 
AT+SCLASS0=<
mode> 
Parameter 
<mode> 
0 disable to store Class 0 SMS to SIM when module receives Class 
0 SMS 
1 enable to store Class 0 SMS to SIM when module receives Class 
0 SMS 
Reference Note 
6.2.26 AT+CCID Show ICCID 
AT+CCID Show ICCID 
Test Command 
AT+CCID =? 
Response: 
OK 
Execution 
Command 
AT+CCID 
Response: 
Ccid data [ex. 898600810906F8048812] 
OK 
Reference Note 
6.2.27 AT+CMTE Set Critical Temperature Operating Mode or Query Temperature 
AT+CMTE Set Critical Temperature Operating Mode or Query Temperature 
Read Command  Response 










