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2. History of videotelephony - Wikipedia

   en.wikipedia.org/wiki/History_of_videotelephony

   After the transistor was invented at Bell Labs in 1948, an AT&T electrical engineer predicted: ... whenever a baby is born anywhere in the world, he is given at birth a ... telephone number for life [and] ... a watch-like device with ten little buttons on one side and a screen on the other ... when he wishes to talk with anyone in the world, he will pull out the device and [call] his friend.

3. Videotelephony - Wikipedia

   en.wikipedia.org/wiki/Videotelephony

   Videotelephony (also known as videoconferencing or video call) is the use of audio and video for real-time communication between people. [1] Videophones are standalone devices for video calling. Other devices like smartphones and computers are now capable of video calling. Videoconferencing implies the use of videotelephony for groups. [2]

4. Video over LTE - Wikipedia

   en.wikipedia.org/wiki/Video_over_LTE

   Video over LTE. ViLTE, an acronym for " Video over LTE ", is a conversational (i.e. person to person) video service based on the IP Multimedia Subsystem (IMS) core network like VoLTE. It has specific profiles for the control and VoLTE of the video service and uses LTE as the radio access medium. The service as a whole is governed by the GSM ...

5. List of video telecommunication services and product brands

   en.wikipedia.org/wiki/List_of_video...

   A typical low-cost webcam (a Microsoft LifeCam VX-3000) for use with many popular video-telecommunication programs (2009). This list of video telecommunication services and product brands is for groupings of notable video telecommunication services, brands of videophones, webcams and video conferencing hardware and systems, all related to videotelephony for two-way communications with live ...

6. AT&T - Wikipedia

   en.wikipedia.org/wiki/AT&T

   AT&T Inc. (with "AT&T" being an abbreviation for its former name, the American Telephone and Telegraph Company) is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [5] It is the world's fourth-largest telecommunications company by revenue and the largest wireless carrier in ...

7. Zoom Video Communications - Wikipedia

   en.wikipedia.org/wiki/Zoom_Video_Communications

   Zoom Video Communications, Inc. (commonly shortened to Zoom, and stylized as zoom) is a communications technology company headquartered in San Jose, California, United States. It provides videotelephony and online chat services through a cloud-based peer-to-peer software platform used for video communications, messaging, voice calls, conference ...

8. AT&T Wireless Services - Wikipedia

   en.wikipedia.org/wiki/AT&T_Wireless_Services

   AT&T Wireless Services, Inc., formerly part of AT&T Corporation, was a wireless telephone carrier founded in 1987 in the United States, based in Redmond, Washington, and later traded on the New York Stock Exchange under the stock symbol "AWE", as a separate entity from its former parent. On October 26, 2004, AT&T Wireless was acquired by ...

9. History of AT&T - Wikipedia

   en.wikipedia.org/wiki/History_of_AT&T

   History of AT&T. The history of AT&T dates back to the invention of the telephone. The Bell Telephone Company was established in 1877 by Alexander Graham Bell, who obtained the first US patent for the telephone, and his father-in-law, Gardiner Greene Hubbard. Bell and Hubbard also established American Telephone and Telegraph Company in 1885 ...