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videotelephony
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videotelephony

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Also known as video teleconference

thumb|250px|A telepresence system in 2007

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Commons category
Videotelephony
Commons gallery
Videotelephony
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~70 min read

Article

36 sections
Contents
  • History
  • Origin
  • Early systems
  • Digital
  • Transition to internet and mobile devices
  • Additional history
  • Major categories
  • By cost and quality of service
  • Security concerns
  • Adoption
  • Technology
  • Components and types
  • Videoconferencing modes
  • Echo cancellation
  • Bandwidth requirements
  • Standards
  • Call setup
  • Conferencing layers
  • Multipoint control
  • Cloud storage
  • Impact
  • Government and law
  • Education
  • Medicine and health
  • Business
  • Press
  • Sign language
  • 21st-century improvements
  • Comparison of Sign Language communication tools
  • Descriptive names and terminology
  • Popular culture
  • See also
  • Notes
  • Bibliography
  • Further reading
  • External links

thumb|250px|A telepresence system in 2007

Videotelephony, also known as videoconferencing, video calling, or telepresence, is the use of audio and video for simultaneous two-way communication.

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