Specifications

Smart Machine Smart Decision
unsolicited result code +CGREG: <stat>[,<lac>,<ci>]
<stat>
0 Not registered, MT is not currently searching an
operator to register to.The GPRS service is disabled, the UE
is allowed to attach for GPRS if requested by the user.
1 Registered, home network.
2 Not registered, but MT is currently trying to attach or
searching an operator to register to. The GPRS service is
enabled, but an allowable PLMN is currently not available.
The UE will start a GPRS attach as soon as an allowable
PLMN is available.
3 Registration denied
The GPRS service is disabled, the UE is not allowed to
attach for GPRS if it is requested by the user.
4 Unknown
5 Registered, roaming
<lac> String type (string should be included in quotation marks); two
byte location area code in hexadecimal format (e.g. "00C3"
equals 195 in decimal)
<ci> String type (string should be included in quotation marks); two
bytes cell ID in hexadecimal format
Reference Note
7.2.11 AT+CGSMS Select Service for MO SMS Messages
AT+CGSMS Select Service for MO SMS Messages
Response
+CGSMS: (list of currently available <service>s)
OK
Test Command
AT+CGSMS=?
Parameter
See Write Command
Response
+CGSMS: <service>
OK
Read Command
AT+CGSMS?
Parameter
See Write Command
Write Command
AT+CGSMS=<se
Response
OK
SIM900_AT Commands Manual_V1.07 181 2012.12.10