User's Manual

Telit TRIZIUM Product Description
80264ST10007a Rev. 4– 09/09/04
Reproduction forbidden without DAI Telecom written authorization – All Right reserved – Right of modification reserved page 80 of 202
5.4.3.2 +CREG - network registration report
+CREG – network registration report
Execute command
Read command
Write command
AT+CREG = <mode>
Enables/disables network registration reports depending on the parameter mode.
Parameter:
<mode>
0 – disable network registration unsolicited result code
1 - enable network registration unsolicited result code
2 - enable network registration unsolicited result code with network
Cell identification data
If mode=1, network registration result code reports:
+CREG: <stat>
<stat> = 0 - not registered, ME is not currently searching a new operator to register
to
<stat> = 1 – registered, home network
<stat> = 2 - not registered, but ME is currently searching a new operator to register to
<stat> = 3 - registration denied
<stat> = 4 -unknown
<stat> = 5 - registered, roaming
If mode=2, network registration result code reports:
+CREG: <stat>[,<Lac>,<Ci>]
where:
<Lac> is the Local Area Code for the currently registered on cell
<Ci> is the Cell Id for the currently registered on cell
Note: <Lac> and <Ci> are reported only if mode=2 and the mobile is registered on
some network cell.
Test command
AT+CREG?
Reports the <mode> and <stat> parameter values in the format:
+CREG: <mode>,<stat>[,<Lac>,<Ci>]
Note: <Lac> and <Ci> are reported only if mode=2 and the mobile is registered on
some network cell.
Example
AT
OK
at+creg?
+CREG: 0,2 (the TRIZIUM is in network searching state)
OK
at+creg?
+CREG: 0,2
OK
at+creg?
+CREG: 0,2
OK