Specifications
SIM900 AT Commands Set
TE link is reserved (e.g. in on line data mode) and flush
them to the TE when MT TE link becomes available;
otherwise forward them directly to the TE
<bfr> 0 MT buffer of unsolicited result codes defined within
this command is cleared when <mode>
1
or
2 is
entered
1 MT buffer of unsolicited result codes defined within this
command is flushed to the TE when <mode> 1 or 2
is entered
Reference
Note
7.2.10 AT+CGREG Network Registration Status
AT+CGREG Network Registration Status
Test Command
AT+CGREG=?
Response
+CGREG: (list of supported <n>s)
OK
Parameters
See Write Command
Read Command
AT+CGREG?
Response
+CGREG: <n>,<stat>[,<lac>,<ci>]
OK
+CME ERROR: <err>
Parameters
See Write Command
Write Command
AT+CGREG=
<n>
Response
OK
ERROR
Parameters
<n> 0 disable network registration unsolicited result code
1 enable network registration unsolicited result code
+CGREG:<stat>
2 enable network registration and location information
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
SIM900_ATC_V1.01 165 23.06.2010