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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

   Closed-circuit videophone systems: 1936–1940. In early 1936, the first public video telephone service, Germany's Gegensehn-Fernsprechanlagen (visual telephone system), was developed by Dr. Georg Schubert, who headed the development department at the Fernseh-AG, a technical combine for television broadcasting technology. [ 27]

4. Skype - Wikipedia

   en.wikipedia.org/wiki/Skype

   Skype was founded in 2003 by Niklas Zennström, from Sweden, and Janus Friis, from Denmark. [ 15] The software was created by Estonians Ahti Heinla, Priit Kasesalu, Jaan Tallinn, and Toivo Annus. [ 16] Friis and Annus are credited with the idea of reducing the cost of voice calls by using a P2P protocol like that of Kazaa. [ 17]

5. Web conferencing - Wikipedia

   en.wikipedia.org/wiki/Web_conferencing

   Web conferencing. Web conferencing is used as an umbrella term for various types of online conferencing and collaborative services including webinars ( web seminars ), webcasts, and web meetings. Sometimes it may be used also in the more narrow sense of the peer-level web meeting context, in an attempt to disambiguate it from the other types ...

6. Timeline of online video - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_online_video

   Key developments in online video web sight. 1974–1992. Development of practical video coding standards. The development of the discrete cosine transform (DCT) lossy compression method leads to the first practical video formats, H.261 and MPEG, initially used for online video conferencing . 1993–2004.

7. Tango Live - Wikipedia

   en.wikipedia.org/wiki/Tango_Live

   Tango Live. Tango is a third-party, [ 2] cross platform messaging application software for smartphones developed by TangoME, Inc. in 2009. The app is free and began as one of the first providers of video calls, texting, photo sharing, and games on a 3G network. [ 3][ 4][ 5]