Elproma Elektronika Sp. z o.o.
ul. Szymanowskiego 13
05-092 Łomianki k/Warszawy
E-mail:
office@elproma.com.pl
Tel. +48 (22) 751 76 80
www.teleorigin.com
20
8.8.
Network registration
8.8.1.
GSM network registration
To check
GSM
network registration status enter
AT+CREG?
into software (for
instance Hyperterminal) Modem will answer in following format:
+CREG: <n>,<stat>[,<lac>,<ci>]
OK
The following table shows the
+CREG
parameters:
<parameter>
Description
<n>
0
Disables the network registration unsolicited result code.
1
Enables the network registration unsolicited result code +CREG: <stat>.
2
Enables the network registration and location information in unsolicited
reports and Read cCREG:<stat>[,<lac>,<ci>].
The default is
0
.
<stat>
0
Not registered, and the ME is not currently searching for a new operator to which to
register.
1
Registered, home network.
2
Not registered, but the ME is currently searching for a new operator to which to
register.
3
Registration denied.*
4
Unknown.
5
Registered, roaming.
<lac>
Two-byte location area code in hexadecimal format
<ci>
Two-byte cell ID in hexadecimal format.
*To manage connecting to network SIM card inserted into the modem must be valid.
For further information about
AT
commands and their usage, refer to [1] / [2].
