I have a phone in New Jersey and their lond distance is routed thru California. This causes a problem of the called ID. The caller ID shows show area code+ prefix+ extension. I modified the external mask to a set DID, but the last 4 always remain the same as the extension.
Is there a way to advertise a certain caller ID in this case?
If you're going to use the external mask from phone you need to check the parameter in the route pattern config, is it checked??
If not then it will take whatever you have at route pattern or route list level
if this helps, please rate