Is it possible to set a restriction on call forwarding from IP Phone to external numbers for e.g. using COR list?
We are using Call Manager express 7.0
Here is one such method;
To restrict the number of digits that can be entered using the CfwdALL soft key on an IP phone, use the call-forward max-length command in ephone-dn or ephone-dn-template configuration mode. To remove a restriction on the number of digits that can be entered, use the no form of this command.
call-forward max-length length
no call-forward max-length
Number of digits that can be entered using the CfwdAll soft key on an IP phone.
This command can be used to prevent a phone user from using the CfwdALL soft key on an IP phone to forward calls to numbers that will incur toll charges when they receive forwarded calls.
If the length argument is set to 0, the CfwdALL soft key is completely disabled. If the ephone-dn associated with the first line button has an active call forward number when this command is used to set the length argument to 0, the CfwdALL soft key will be disabled after the next phone restart
Hope this helps!