Sierra Wireless MP 700 Series, Command Reference Manual

Page: 93 / 118

Command Reference
Rev 3.2 Oct.05 91
+CREG[=<n>]
+CREG?
Note: For GPRS data
registration status, see
+CGREG on page 72.
GSM network registration
For GSM CSD or voice connections,
+CREG=<n>
controls the presentation of
an unsolicited result code, which appears in one of several forms depending on
the value of
<n>
(or an error if no status is available):
•
When
<n>=0
, no network registration unsolicited result codes are returned
(the default).
•
+CREG: <stat>
(registration status only) is returned when
<n>=1
and there
is a change in the modem's GPRS network registration status.
•
+CREG: <stat>,<lac>,<ci>
(which includes location information) is returned
when
<n>=2
and there is a change of the network cell.
+CREG?
returns the status of result code presentation and an integer
<stat>
showing the current status. (Location information elements
<lac>
and
<ci>
are
returned only when
<n>=2
and the modem is registered on the network.)
Returned values
The possible returned values of
<stat>
are:
•
0
: not registered; not seeking a new operator
•
1
: registered, home network
•
2
: not registered; currently seeking a new operator
•
3
: registration denied
•
4
: unknown
•
5
: registered, roaming
<lac>
is a string specifying a two-byte location area code in hexadecimal format
(e.g. “00C3” equals 195 in decimal).
<ci>
is a string specifying a two-byte cell ID in hexadecimal format.
+CRES Restore SMS settings
Restores the SMS settings of the Sierra Wireless modem for
+CMGF
(page 78),
+CNMI
(page 82), and
+CSDH
(page 93) from settings stored in non-volatile
memory.
Note: For information on saving these settings to non-volatile memory, see
+CSAS
on page 92.
Table 3-9: Command Reference Table (ASCII Alphabetic)
Command Description