Cisco 2821 Router with CME 4.0; 4 port FXO Card
Call coming in from FXO directed to extension cisco IP phone (any model). While ringing on the Cisco IP Phone and the FXO disconnects before being redirected to VM, the ringing on the Cisco IP phone continues. If picked up, only has a fast busy. I would like the Cisco IP phones to drop ringing if the FXO drops off, Any suggestions?