I have several IP phones (7940 & 7960) at a remote site - none of them are able to access the Corporate Directory. They register fine and have all other functionality, but the Corporate Directory is not listed at all when they press the Directory button on their phones.
Phones at the remote site are connected back to the main site by a point to point T1. Their IP addresses at the remote site are 10.34.76.xx; at the main site we are on 10.34.66.xx. CCM version we are running is 4.1(3).
I've already changed the Corp Dir URL to use the Publisher IP address, rather than the DNS name, but that didn't make any difference. Any other ideas?