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- The concept of videotelephony was conceived in the late 19th century, and versions were available to the public starting in the 1930s. Early demonstrations were installed at booths in post offices and shown at various world expositions. In 1970, AT&T launched the first commercial personal videotelephone system.en.wikipedia.org/wiki/Videotelephony
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History of videotelephony | Wikipedia
Barely two years after the telephone was first patented in the United States in 1876 by Alexander Graham Bell, an early concept of a combined videophone and wide-screen television called a telephonoscope was conceptualized in the popular periodicals of the day. It was also mentioned in various early … See more
In early 1936, the first public video telephone service, Nazi Germany's Gegensehn-Fernsprechanlagen (visual telephone system), was developed by Dr. Georg Schubert, who headed the development department at the Fernseh-AG, a technical … See more
AT&T developed a refined Picturephone throughout the late 1960s, resulting in the "Mod II" (Model No. 2), which served as the basis for AT&T's launch of the first true video conferencing service. Unlike earlier systems, in which people had to visit public videophone … See more
This time period saw the research, development and commercial roll-out of what would become powerful video compression and … See more
Beginning in the late 1960s, several countries worldwide sought to compete with AT&T's advanced development of its Picturephone service in the United States. However such … See more
Significant improvements in video call quality of service for the deaf occurred in the United States in 2003 when Sorenson Media Inc. (formerly Sorenson Vision), a video compression … See more
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