Hi there - We have installed a new door intercom system that plugs directly into an FXO port on one of our gateways (Cisco 2821). I setup the FXO port to forward the calls to a DN (9999). I have setup a 7940 IP phone with a second line of (9999) and setup that line to forward all calls to the other line on the phone. It works great as long as the person sitting at the desk answers the call, if they don't and it goes into voicemail, the intercom does not hang up it just goes to the Unity menu where you could enter in an extension as if to check voice mail. I am just trying to figure out a way for the intercom device (I cannot configure the device itself) that connects directly into the FXO port to disconnect the call after a certain amount of time (say 20 or 30 seconds). I have been looking through some various documentation and cannot seem to find any setting that could be modified to force the call to hang up. If anyone has ever accomplished something similar to what I am trying to accomplish I would appreciate any pointers.