[cisco-voip] No dial tone issue

[Curt Shaffer]

I have a client who is running Cisco Unity Express version 2.1. A user on
this system had a 7940 phone that just died. So while waiting for
troubleshooting on that we put another 7940 in its place. I added the new
phone, associated the user with the phone etc. When the phone boots it has
all of the users information (like missed calls, name etc) as if it is
registering fine. The problem is they have no dial tone. Calls can come into
it from other extensions and the DID that is mapped to it is working fine
from the outside. Sound is fine when we call in. The only issue is when they
pick up the phone there is no tone what so ever. 

Any ideas?

Thanks

Curt