User Manual

Response
Reason
Action
OK
Barring is now enabled/disabled
all outgoing international calls will
be barred/unbarred
ERROR
some error occurred
Enable the extended error codes
report (see par.4.4.2.1) and retry.
+CME ERROR: 4
operation not supported, the
service required is not available
Check command syntax
+CME ERROR: 30
no network service
Check for registration (see par.
4.4.3.1) and signal strength.
+CME ERROR: 16
wrong network password
check network password and retry
For example:
1- Let us assume you want to bar all the outgoing international calls (originated by mobile
and to a number outside the home country of the mobile) and the network password of your
operator is 1234:
command
AT+CLCK=OI,1,1234<cr>
response:
OK
 send command AT+CLCK=OX,<en>,<pwd><cr>
where:
<en> is the operation selected:
0 - Call Barring Disable (Unbarring)
1 - Call Barring Enable (Barring)
<pwd> is the network password required to change facility status
 wait for response:
Response
Reason
Action
OK
Barring is now enabled/disabled
all outgoing international calls
except to Home Country will be
barred/unbarred
ERROR
some error occurred
Enable the extended error codes
report (see par. 4.4.2.1) and retry.
+CME ERROR: 4
operation not supported, the
service required is not available
Check command syntax
+CME ERROR: 30
no network service
Check for registration (see par.
4.4.3.1) and signal strength.
+CME ERROR: 16
wrong network password
check network password and retry
For example: