Customers really like the Lync Room Systems. They perfectly fit the Lync experience from mobile to table and desktop clients. A very common request is to be able to integrate with legacy (H.323, or SIP (H.264) videoconferencing endpoints. Sometimes customers have 100+ of those Cisco or Polycom endpoints. I would like to suggest a way for those endpoints to dial into the AVMCU. Either throught the upcoming Skype4Business new VIS (video interoperability server role) or some other method.