Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 115 23.06.2010
Parameters
see Write Command
Test Command
AT+CSCA=?
Response
OK
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
4.2.13 AT+CSCB Select Cell Broadcast SMS Messages
AT+CSCB Select Cell Broadcast SMS Messages
Response
+CSCB: <mode>,<mids>,<dcss>
OK
Read Command
AT+CSCB?
Parameters
see Write Command
Test Command
AT+CSCB=?
Response
+CSCB: (list of supported <mode>s)
OK