We have a new block of DID numbers assigned to our existing PRI. I can't figure out how to get them to work for the inbound side. I have created extensions that can call out and work just fine internally. I created the CPN substitution for the outbound caller ID. I can not get inbound numbers to go through. We get an error that the number is no longer in service, etc... Provider tested and said PBX refused the numbers. Is there something else that has to be configured? Thanks!