Data Sheet

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 218 2015-08-03
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
Parameter Saving
Mode
AT&W_SAVE
Max Response
Time
-
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=?
Parameters
See Write Command
Response
+CGSMS: <service>
OK
Read Command
AT+CGSMS?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CGSMS=<se
rvice>
Parameters
<service> A numeric parameter which indicates the service or service
preference to be used