I was told by a friend and it was a cool system that I have been met before, surely want to recommend to you all!

vzRoom™ is an integrated high performance multiple-party communication software with the following functions: video conference, screen sharing, application sharing, movie sharing, photo sharing, remote desktop, whiteboard, collaboration, full screen display, dual monitor display, emphasized camera, echo cancellation, instant message, offline message, shared folder, multiple tabs, dockable windows, Q&A, meeting scheduling, invisible group list, presentation mode and recording. It can support up to 63 concurrent users. Besides, it supports vzRoom™-to-PSTN (telephone line) and PSTN-to-vzRoom™.