We have just upgraded from an ancient Iwatsu Adix PBX to VOIP and I need to utilize our existing overhead paging system with the new phone system. We have an EDVIF board in the system and I guess I need an A/D converter (such as Grandstream HT 502) and a Rad-1A answering device.
I have no idea how to connect the Rad-1A to the EDVIF board (or patch panel) and what programming needs to be done.
Any help would be appreciated.
Thanks,
Corey