i have a user who is trying to call another of our branches to a user there on a spicific DID at the other end. this end is a Axxess 9.15 and the other end is a 5200 with v2.3 running. this is only affecting 1 extension. at the Axxess end the phone never rings the other end and at the 5200 end it rings 1 time and disconnects.

any ideas?
thanks for your help.

Mike