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Videoconferencing brings people together for meetings without
them having to be physically present in the same location. This saves
travel time and costs, and facilitates more frequent contact with colleagues,
partners, suppliers, and customers.
The minimum required components at each endpoint of a videoconference
are a microphone, a camera, a codec, a monitor and a speaker. The camera
and microphone capture the image and sound, the codec converts the video
and audio into a digital signal, encodes it and sends it out. The codec
at the other end decodes the signal and distributes the video and audio
to the monitor and speaker. Top quality videoconferencing systems can
provide additional features which enhance the video meeting.
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