I have a location that has 2 door phones, Algo 8201's on 3cx v15.5 latest. Those work great. They are set to dial the ring group when a button is pressed. The CID shows what door is calling and the phones ring. They also have a Cyberdata Sip Paging adapter v3.1 that does the overhead paging. It works fine too. However they are requesting that I the Paging Alert somehow that a door button has been pressed. Anyone know what to do here as if I add the cyberdata to the ring group, it will answer. So not sure how to make the setup happen? Thanks!