TC63 AT Command Set
8.4 AT+CREG
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TC63_ATC_V00.490 Page 184 of 501 5/24/05
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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 USB MUX1 MUX2 MUX3 Charge 4 Last
GSM 07.07 ! % % % % % % ! ! !
<n>
(num)(&W)(&V)
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