I have a callmgr 5.1 with Unity 5.0. Incoming service is via a T-1 CAS, e&m-wink start ckt.
Incoming call hits unity auto attendant and transfers to user. IP phone rings an ddisplay shows "unknown number".
Should display show caller id assuming carrier is sending it? If so, is there any config needed to enable it? How can I verify carrier is sending it?
gateway is mgcp-2821.