Siemens MC35 ユーザーズマニュアル
AT Command Set
MC35_ATC_01_V05.00
Page 124 of 256
15.07.2002
4.41 AT+CREG Network registration
Test command
AT+CREG=?
Response
+CREG:
(list of supported <n>s) OK
Parameter
See write command
Read command
AT+CREG?
ME 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.
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.
Response
+CREG: <n>,<stat>[,<lac>,<ci>]
OK
or if an error occurs which is related to ME functionality:
+CME ERROR: <err> (for error text see Chapter 9.1.1. or set AT+CMEE=2)
OK
or if an error occurs which is related to ME functionality:
+CME ERROR: <err> (for error text see Chapter 9.1.1. or set AT+CMEE=2)
Write command
AT+CREG=
[<n>]
[<n>]
Use the write command to select the type of URC. Two types of URCs are
available:
+CREG: <stat> if <n>=1. To be issued when the ME's network registration
status changes
or
+CREG: <stat>[,<lac>,<ci>] if <n>=2. To be issued when ME's network registra-
tion or network cell changes.
available:
+CREG: <stat> if <n>=1. To be issued when the ME's network registration
status changes
or
+CREG: <stat>[,<lac>,<ci>] if <n>=2. To be issued when ME's network registra-
tion or network cell changes.
Response
OK
or if an error occurs which is related to ME functionality:
+CME ERROR: <err>
<err>
+CME ERROR: <err>
<err>
256 If <n> = 0: Attempt to set once again <n>=0 causes error
code 256.
If <n> > 0: Attempt to activate a URC mode that is already
active is acknowledged with OK.
If <n> > 0: Attempt to activate a URC mode that is already
active is acknowledged with OK.
Parameter
<n >
0 disable
URCs
1
enable
URC
+CREG:<stat> to report status of network reg-
istration
2
enable
URC
+CREG:<stat>[,<lac>,<ci>] to report status of
network registration including location information. Please
note that optional parameters will not be displayed during
call.
note that optional parameters will not be displayed during
call.
<stat>
0
not registered, ME is currently not searching for new opera-
tor
tor
1
registered, home network
2
not registered, but ME is currently searching for a new op-
erator
erator
3
registration
denied
4
unknown
5
registered,
roaming
<lac>
string type; two byte location area code in hexadecimal format
(e.g. "00C3" equals 193 in decimal)
(e.g. "00C3" equals 193 in decimal)
<ci>
string type; two byte cell ID in hexadecimal format