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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 ...
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]
Telephony ( / təˈlɛfəni / tə-LEF-ə-nee) is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone .
Voice over Internet Protocol ( VoIP [a] ), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, [2] such as the Internet. The broader terms Internet telephony, broadband telephony, and broadband phone service specifically refer to ...
Blue box designed and built by Steve Wozniak and sold by Steve Jobs before they founded Apple. Displayed at the Powerhouse Museum, from the collection of the Computer History Museum [1] A blue box is an electronic device that produces tones used to generate the in-band signaling tones formerly used within the North American long-distance ...
Windows Live Call was part of Microsoft 's Windows Live services. It integrated into Windows Live Messenger to allow users to make PC-to-PC and PC-to-Phone voice and video calls. Microsoft partnered with telecommunication companies around the world to allow users to use a PC equipped with a microphone and speakers and a high speed Internet ...
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