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Such an antecedent usually consisted of two closed-circuit television systems connected via coax cable or radio.An example of that was the German Reich Postzentralamt (post office) video telephone network serving Berlin and several German cities via coaxial cables between 19.News media organizations have begun to use desktop technologies like Skype to provide higher-quality audio than the phone network, and video links at much lower cost than sending professional equipment or using a professional studio.

One of the first commercial videoconferencing systems sold to companies came from Picture Tel Corp., which had an Initial Public Offering in November, 1984.During this time, there was also research into other forms of digital video and audio communication.Many of these technologies, such as the Media space, are not as widely used today as videoconferencing but were still an important area of research.In 1984, Concept Communication in the United States replaced the then-100 pound, US0,000 computers necessary for teleconferencing, with a ,000 circuit board that doubled the video frame rate from 15 up to 30 frames per second, and which reduced the equipment to the size of a circuit board fitting into standard personal computers.Videoconferencing systems throughout the 1990s rapidly evolved from very expensive proprietary equipment, software and network requirements to a standards-based technology readily available to the general public at a reasonable cost.The news media were to become regular users of mobile links to satellites using specially equipped trucks, and much later via special satellite videophones in a briefcase.

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