Recently we had an extension move from being a plexar number, to a number in our building. We are able to dial the number fine internally by dialing 4-digits or by dialing a 9 to get an outside line and then dialing the 7-digit number. If we call from somewhere outside (or on a cellphone) we end up at the attendant. The phone company swears that the extension is configured in the same manner as our other working extensions. Avaya says that it sounds like the phone company is not sending the correct info, so when it hits the PBX it does not know what to do with it, so it sends it to the attendant. Is there any other possible causes of this? Avaya tested the number and was able to get through on a couple of their tests, but also got the attendant on a another attempt. Any input would be greatly appreciated.