Specifications
SIM900 AT Command Manual       
SIM900_AT Command Manual_V1.03  113  12/24/2010 
If error is related to ME functionality: 
+CMS ERROR <err> 
Reference 
GSM 07.05 
Note 
4.2.12 AT+CSCA SMS Service Center Address 
AT+CSCA SMS Service Center Address 
Test Command 
AT+CSCA=? 
Response 
OK 
Response 
+CSCA: <sca>,<tosca>[,<scaAlpha>] 
OK 
Read Command 
AT+CSCA? 
Parameters 
See Write Command 
Response 
TA updates the SMSC address, through which mobile originated SMS are 
transmitted. In text mode, setting is used by send and writes commands. In 
PDU mode, setting is used by the same commands, but only when the 
length of the SMSC address coded into <pdu> parameter equals zero. 
Note: The Command writes the parameters in NON-VOLATILE memory. 
OK 
If error is related to ME functionality: 
+CME ERROR: <err> 
Write Command 
AT+CSCA= 
<sca>[,<tosca>] 
Parameters 
<sca>    GSM 04.11 RP SC address Address-Value field in 
string format(string should be included in quotation 
marks); BCD numbers (or GSM default alphabet 
characters) are converted to characters of the currently 
selected TE character set (specified by +CSCS in TS 
07.07); type of address given by <tosca> 
<tosca>    Service center address format GSM 04.11 RP SC 
address Type-of-Address octet in integer format 
(default refer <toda>) 
<scaAlpha>  string type(string should be included in quotation 
marks) 
 Service center address alpha data 
Reference 
GSM 07.05   
Note 










