OK - I keep getting dragged into things I have no clue about. If anybody is familiar with a Vocerea voice/audio system (like hospitals use) and how they operate (It's basically a mobile VIOP badge/phone). I guess there is a way to also be able to reach those badges/phones from a PBX if you have SIP capability to interface with the Vocerea server. SO - how would I know if my OPT 81 has any SIP capabilities? Not even sure how to make the connections if it has it...... the other option I guess would be to get a media gateway server and go that route.