What are the formats and protocols of videoconferencing?
There are mainly two formats for Videoconferencing: • Point-to-Point Videoconferencing: This is conferencing with video and audio on the network much like a video telephone. It is a conference between two sites where each site can have capabilities like document sharing, chatting, etc. • Multiple Point Videoconferencing: Multipoint videoconferencing allows three or more participants to sit in a virtual conference room and communicate as if they were sitting right next to each other. Related to multiple site videoconferencing is bridging where sites connect through a meeting point software that supports capabilities like document sharing, chatting, etc. See also: Desktop Videoconferencing and Room-Based Videoconferencing The most used protocols are as following: H.323: Internet-Based connection that is the cheapest way to go with. Basically, you use the Internet as the medium to transmit audio and video. H.320: or what is known by ISDN which is transmitted through digital telephone line
