I switched local phone service from AT&T (non centrex, no dialing 9) to Time Warner Digital Telephone. Callers are still able to get in, however, I can not dial out. I have a Cisco call manager 4.1, vic2-2FX0 in a 2800 series router. This is a remote office which connects to our main office via T1. Local calls come in and go out the FX0.