Global Video Teleconferencing-- What is it?
The Abstract Video teleconferencing is an Internet phone that allows people to communicate visually and orally. The development of video teleconferencing (VTC) technology took place in the United Kingdom and the United States. The basic equipment needed for users to participate in VTC is a camera, microphone, strong internet connection, a display (laptop, desktop monitor, television screen, etc.), speakers (built-in computer speakers, external speaker, or headphones), and a video conferencing software/program. To stream a live video, it must be digitized and packetized using real-time data on a packet-switched network. The playback buffer then separates the arrival time from the playback time, by storing the data until they are played back. When a session begins to play, the receiver only begins to display the data when the threshold (time units) is met. In addition to this, a sequence number for each packet is required because the timestamp alone cannot inform the receiver if a pa