videotelephony
Sign in to saveAlso known as video teleconference
thumb|250px|A telepresence system in 2007
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- Videotelephony
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- Videotelephony
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Article
36 sectionsContents
- 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.
Gallery (20)
Connections
online chat
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Voice over IP
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data compression
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television
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email
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smartphone
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telecommunications
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computer network
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local area network
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distance education
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wireless communication
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coaxial cable
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Bell Labs
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broadband
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Integrated Services Digital Network
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Information Age
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telephony
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hearing loss
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telemedicine
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public switched telephone network
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