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  2. Zoom (software) - Wikipedia

    en.wikipedia.org/wiki/Zoom_(software)

    Zoom (software) Zoom (stylized as all lowercase) is a proprietary videotelephony software program developed by Zoom Video Communications. The free plan allows up to 100 concurrent participants, with a 40-minute time restriction. Users have the option to upgrade by subscribing to a paid plan, the highest of which supports up to 1,000 concurrent ...

  3. Skype - Wikipedia

    en.wikipedia.org/wiki/Skype

    It also has instant messaging, file transfer, debit-based calls to landline and mobile telephones (over traditional telephone networks), and other features. It is available on various desktop, mobile, and video game console platforms. Skype was created by Niklas Zennström, Janus Friis, and four Estonian developers, and first released in August ...

  4. Phreaking - Wikipedia

    en.wikipedia.org/wiki/Phreaking

    Phreaking began in the 1960s when it was discovered that certain whistles could replicate the 2600 Hz pitch used in phone signalling systems in the United States. [3] Phone phreaks experimented with dialing around the telephone network to understand how the phone system worked, engaging in activities such as listening to the pattern of tones to figure out how calls were routed, reading obscure ...

  5. 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 ...

  6. History of videotelephony - Wikipedia

    en.wikipedia.org/wiki/History_of_videotelephony

    It was designed to output its video to the user's television in order to lower the cost of acquisition, and to offer remote control and a powerful video compression codec for unequaled video quality and ease of use with a video relay service (VRS). Favourable reviews quickly led to its popular usage at educational facilities for the deaf, and ...

  7. Google Meet - Wikipedia

    en.wikipedia.org/wiki/Google_Meet

    Google Meet. Google Meet is a video communication service developed by Google. [ 8] It is one of two apps that constitute the replacement for Google Hangouts, the other being Google Chat. [ 9] It replaced the consumer-facing Google Duo on November 1, 2022, with the Duo mobile app being renamed Meet and the original Meet app set to be phased out.

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