PictureTel
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PictureTel Corporation was one of the first commercial videoconferencing product companies. It achieved peak revenues of over $490 million in 1996 and 1997 and was eventually acquired by Polycom in October 2001.
LiveShare Plus - MS Windows
Videotelephony
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Photos
Videotelephony is the use of audio and video for real-time communication between people.
A telepresence system in 2007
Videotelephony predicted to be in use by 2000, as envisioned in 1910 (artist's conception)
Videotelephone booth, 1922
Multiple user videoconferencing first being demonstrated with Stanford Research Institute's NLS computer technology (1968)