Video conference refers to a communication over a distance between three or more people where video and audio is transmitted in near real-time. There are various software packages which make this possible, like Skype.
Images for kids
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An upscale Teliris VirtuaLive telepresence system in use (2007).
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A 1969 AT&T Picturephone, the result of decades long R&D at a cost of over US$500M
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Artist's conception: 21st century videotelephony imagined in the early 20th century (1910).
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Multiple user videoconferencing first being demonstrated with Stanford Research Institute's NLS computer technology (1968).
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Global Schoolhouse students communicating via CU-SeeMe, with a video framerate between 3-9 frames per second (1993).
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A modern Avaya Nortel 1535 IP model broadband videophone (2008), using VoIP.
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An older dual-display Polycom videoconferencing system (2008).
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A typical low-cost webcam for use with personal computers (2006).
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Web cameras in laptop computers can allow two people to have a "face-to-face" conversation despite being separated by a vast distance. In this example, a coach helps a student prepare for a college interview.
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Dual display: An older Polycom VSX 7000 system and camera used for videoconferencing, with two displays for simultaneous broadcast from separate locations (2008).
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Various components and the camera of a LifeSize Communications Room 220 high definition multipoint system (2010).
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A video conference meeting facilitated by Google Hangouts.
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Deutsche Telekom T-View 100 ISDN type videophone meant for home offices and small businesses with a lens cover which can be rotated upward to assure privacy when needed (2007).
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The Tandberg E20 is an example of a SIP-only device. Such devices need to route calls through a Video Communication Server to be able to reach H.323 systems, a process known as "interworking" (2009).
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A mobile video call between Sweden and Singapore made on a Sony-Ericsson K800 (2007)
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A Tandberg T3 high resolution telepresence room in use (2008).
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Indonesian and U.S. students participating in an educational videoconference (2010).
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The scene of Dr. Heywood Floyd in 2001: A Space Odyssey placing a videocall to his daughter on Earth helped popularize the videophone just as AT&T began to commercialize its Picturephone (1968).
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Modern Times: An early depiction of videotelephony as shown in the Charlie Chaplin movie, with an employee receiving instructions from a factory executive (1936).
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Video telephone booth, 1930
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A deaf or hard-of-hearing person using a Video Relay Service at his workplace to communicate with a hearing person in London (2007).
See also
In Spanish: Videochat para niños