Westermo GDW-11 - Manual (Page 34)

34 Network service commands 6615-2220
+COPS – Operator selection
Description:
There are three possible ways of selecting an operator (PLMN):
… The product is in manual mode. It then tries to find the operator specified by the
application and if found, tries to register.
… The product is in automatic mode. It then tries to find the home operator and if
found, tries to register. If not found, the product automatically searches for another
network.
… The product enters into manual/automatic mode, and then tries to find an operator
as specified by the application (as in manual mode). If this attempt fails it enters auto-
matic mode. If this is successful, the operator specified by the application is selected.
The mobile equipment then enters into automatic mode.
NOTE:
The read command returns the current mode and the currently selected operator. In
manual mode, this PLMN may not be the one set by the application (as it is in the search
phase).
These commands are not allowed during one communication.
Syntax:
AT+COPS=<mode> [,<format> [,<oper>]]
Responses Syntax
OK Network is selected with full service
+CME ERROR: 30 No network service
+CME ERROR: 32 Network not allowed – emergency calls only
+CME ERROR: 3
Not allowed during communication
+CME ERROR: 4 Incorrect parameters
+CME ERROR: 527 Please wait, and retry your selection later
+CME ERROR: 528 Location update failure – emergency calls only
+CME ERROR: 529 Selection failure – emergency calls only
Response syntax for AT+COPS?:
+COPS: <mode> [, <format>, <oper> ]
Response syntax for AT+COPS=?:
+COPS: [list of supported (<stat>, long alphanum <oper>, short alphanum <oper>s,
numeric <oper>) s]
CME ERROR: 546 Emergency call is not allowed without SIM
CME ERROR: 547 Emergency call
NOTE:
-Error code CME ERROR: 546 or CME ERROR: 547 are only returned if SIM is not present
- The fact that network support emergency call (CME ERROR: 547) does not imply that
emergency call without SIM is working.