My network scenario is a CallManager 5 connected by a bri interface with a Cisco 2811, IOS Version 12.4(9)T6, to a PBX.
When I make a call from the PBX side to the VoIP side i get the "From Unknown Number" message on the voip Phones (Cisco IP Phones 7961 or 7941 series).
I believe this is somehow worked around in the gateway, maybe by adding the command caller-id enable on the voice ports, but this does not seems to be available...
Does anyone knows if I'm right or wrong in this... and if I'm wrong how can I solve this issue?
If you need any more information, please tell me, and I will post it :)