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2. History of videotelephony - Wikipedia

   en.wikipedia.org/wiki/History_of_videotelephony

   By 1930, AT&T's "two-way television-telephone" system was in full-scale experimental use. The Bell Labs' Manhattan facility devoted years of research to it during the 1930s, led by Dr. Herbert Ives along with his team of more than 200 scientists, engineers and technicians, intending to develop it for both telecommunication and broadcast entertainment purposes.

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. 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 ...

6. Telemedicine: The Benefits of Virtual Healthcare

   www.healthline.com/health/telemedicine

   Today, doctors provide telemedicine primarily with video calls. The internet makes these types of interactions easier. People can use a smartphone, tablet, computer, or another connectable device.

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 Corporation - Wikipedia

   en.wikipedia.org/wiki/AT&T_Corporation

   AT&T Corporation, commonly referred to as AT&T, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

9. Voice over LTE - Wikipedia

   en.wikipedia.org/wiki/Voice_over_LTE

   Voice over LTE. Voice over LTE ( VoLTE) is an LTE high-speed wireless communication standard for voice calls using mobile phones and data terminals. [1] 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 smaller than those of ...