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  2. Videotelephony - Wikipedia

    en.wikipedia.org/wiki/Videotelephony

    Videotelephony (also known as videoconferencing or video call) is the use of audio and video for simultaneous two-way communication. [ 1 ] There are many terms to refer to videotelephony. Videophones are standalone devices for video calling (compare Telephone). In the present day, devices like smartphones and computers are capable of video ...

  3. History of videotelephony - Wikipedia

    en.wikipedia.org/wiki/History_of_videotelephony

    Calls between Berlin and Leipzig cost RM3½, approximately one sixth of a British pound sterling, or about one-fifteenth of the average weekly wage. [31] The video telephone equipment used in Berlin was designed and built by the German Post Office Laboratory.

  4. FaceTime - Wikipedia

    en.wikipedia.org/wiki/FaceTime

    In iPhone, if a phone call was pending and the user attempts to answer, the video call ends and the phone call began with the next user. Support for group video conferencing was added with the release of iOS 12, allowing up to 32 people to participate in a video call simultaneously.

  5. Voice over LTE - Wikipedia

    en.wikipedia.org/wiki/Voice_over_LTE

    Voice over Long-Term Evolution (acronym VoLTE) is an LTE high-speed wireless communication standard for voice calls and SMS using mobile phones and data terminals. [1][2] VoLTE has up to three times more voice and data capacity than older 3G UMTS and up to six times more than 2G GSM. It uses less bandwidth because VoLTE's packet headers are ...

  6. Contact AOL customer support

    help.aol.com/articles/account-management...

    Contact AOL customer support - AOL Help. AOL APP. News / Email / Weather / Video. GET. Mail. Call live aol support at. 1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more.

  7. Video relay service - Wikipedia

    en.wikipedia.org/wiki/Video_Relay_Service

    Translation. A video relay service (VRS), also sometimes known as a video interpreting service (VIS), is a video telecommunication service that allows deaf, hard-of-hearing, and speech-impaired (D-HOH-SI) individuals to communicate over video telephones and similar technologies with hearing people in real-time, via a sign language interpreter.