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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.

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Videotelephony developed in parallel with conventional voice telephone systems from the mid-to-late 20th century.This technique was very expensive, though, and could not be used for applications such as telemedicine, distance education, and business meetings.Attempts at using normal telephony networks to transmit slow-scan video, such as the first systems developed by AT&T Corporation, first researched in the 1950s, failed mostly due to the poor picture quality and the lack of efficient video compression techniques.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.More popular videotelephony technologies use the Internet rather than the traditional landline phone network, even accounting for modern digital packetized phone network protocols, and even though videotelephony software commonly runs on smartphones.

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