"Videophone" redirects here. For other uses, see Videophone (disambiguation).
A telepresence system in 2007
Videotelephony (also known as videoconferencing or video call) is the use of audio and video for real-time communication between people.[1]
Videophones are standalone devices for video calling. Other devices like smartphones and computers are now capable of video calling. Videoconferencing implies the use of videotelephony for groups.[2] High-quality videoconferencing is used for telepresence, whose goal is to create the illusion that remote participants are in the same room. Videoconferencing has also been called visual collaboration and is a type of groupware.
The idea of videotelephony was concieved in the late 19th century, and became 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 videotelephone system where anyone could subscribe and have the technology in their home or office. Image phones would exchange still images between units every few seconds over conventional telephone lines. The development of advanced video codecs, more powerful CPUs, and high-bandwidth Internet service in the late 1990s allowed videophones to provide high-quality low-cost color service between users almost any place in the world.
Applications of videotelephony include sign language transmission for deaf and speech-impaired people, distance education, telemedicine, and overcoming mobility issues. News media organizations have used videotelephony for broadcasting.[citation needed]
^"Videotelephony". McGraw-Hill Concise Encyclopedia of Science and Technology (5 ed.). New York: McGraw-Hill. 2004.
Videotelephony (also known as videoconferencing or video call) is the use of audio and video for real-time communication between people. Videophones are...
Videotelephony as a concept began to materialize shortly after the telephone was patented in 1876, and its history is closely connected to that of the...
between one's home and workplace. Relatively recently, the rise of videotelephony have cause a reduction of business travel. In the twenty-first century...
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(radio-frequency complementary MOS) technology. The development of videotelephony involved the historical development of several technologies which enabled...
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Gradually webcams came to be used more for telecommunications, or videotelephony, between two people, or among several people, than for offering a view...
around 150,000 page views per day. In March 2010, the site introduced a videotelephony feature. Brooks said, "I was working on a different project before Omegle...
webcams and video conferencing hardware and systems, all related to videotelephony for two-way communications with live video and audio. The first section...
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Telephone Cases Television digital streaming Undersea telegraph line Videotelephony Whistled language Wireless revolution Pioneers Nasir Ahmed Edwin Howard...
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accommodating text messaging, Internet connectivity, multimedia, and videotelephony. These feature phones eventally gave way to the modern smartphone, which...
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Instant messaging Internet forum Online dating service Real-time text Videotelephony Voice chat "PLATO | computer-based education system". Britannica. Archived...
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Internet teleconferencing includes internet telephone conferencing, videotelephony, web conferencing, virtual workplace, and augmented reality conferencing...
Communicator) is an enterprise software application for instant messaging and videotelephony developed by Microsoft as part of the Microsoft 365 (formerly Office)...
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involves the physical presence, virtual presence through a phone call, videotelephony or social media presence, of someone with whom one shares their goals...
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and a navigation panel. Office Communicator, an instant messaging and videotelephony application, was renamed into Lync 2010. This is the first version to...
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