Videoconferencing is a session of “live” communication between people from different locations who need personal contact, including normal speech, interchange of text and visual information.

Videoconferencing system is a system consisting of three main elements:

- Users terminals
- Video-server
- Control system

Users terminals are divided into several types:

- Personal systems
- Systems for meeting rooms

A terminal consists of a video camera, main block (codec) and a display component.
Videoconferencing system
Videoconferencing system

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