Siemens Brodersen MC55 AT - Manual (Page 168)

MC55_ATC_V04.00 Page 168 of 475 3/17/06
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8.4 AT+CREG Network registration
The
AT+CREG
command serves to verify the network registration status of the ME. For this purpose two types of
URCs are available.
The
AT+CREG
read command returns the URC presentation mode
<n>
and an integer
<stat>
that shows the
registration status of the ME. The location information elements
<lac>
and
<ci>
are returned only when
<n>
=2
and ME is registered to the network.
Syntax
Unsolicited Result Codes
URC 1
If
<n>
=1 and there is a change in the ME network registration status:
+CREG: <stat>
URC 2
If
<n>
=2 and there is a change in the ME network registration status or a change of the network cell:
+CREG: <stat> [, <lac> , <ci> ]
Parameter Description
[0] (&F) Disable +CREG URC
1 Enable URC +CREG:
<stat>
to report status of network registration
2 Enable URC +CREG:
<stat>
[,
<lac>
,
<ci>
] to report status of network regis-
tration including location information. Optional parameters
<lac>
and
<ci>
will not be displayed during calls or if these values have not changed since last
AT+CREG
read command or since last indication by +CREG URC.
Test Command
AT+CREG=?
Response(s)
+CREG:
(list of supported
<n>
s)
OK
Read Command
AT+CREG?
Response(s)
+CREG: <n>
,
<stat>
[,
<lac>
,
<ci>
]
OK
ERROR
+CME ERROR: <err>
Write Command
AT+CREG=
[
<n>
]
Response(s)
OK
ERROR
+CME ERROR: <err>
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last
GSM 07.07 ! % % % % % ! ! !
<n>
(num)(&W)(&V)