Siemens MC55 AT manual AT+CREG Network registration, At+Creg=?, At+Creg?, +CREG n, stat, lac, ci

8.4AT+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

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)

GSM 07.07

PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last

! % % % % % ! ! !

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

<n>(num)(&W)(&V)

	[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.
MC55_ATC_V04.00		Page 168 of 475	3/17/06
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