Videotelephony (also known as videoconferencing or video calling) is the use of audio and video for simultaneous two-way communication. [1] Today, videotelephony is widespread. There are many terms to refer to videotelephony. Videophones are standalone devices for video calling (compare Telephone).

Barely two years after the telephone was first patented in the United States in 1876 by Alexander Graham Bell, an early concept of a combined videophone and wide-screen television called a telephonoscope was conceptualized in the popular periodicals of the day.

In 1927, videophone communication reached the popular consciousness through Fritz Lang's science fiction film Metropolis. The first publicly operated, two-way picture-phone service in the world...

Discover the fascinating history of videotelephony and its transformative impact on visual communication. From Bell Labs to the internet revolution, explore the birth and future of video calling.

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 video and audio.

videophone, device that simultaneously transmits and receives both audio and video signals over telephone lines.

2019年1月8日 · The concept of videotelephony was first popularized in the late 1870s in both the United States and Europe, although the basic sciences to permit its very earliest trials would take nearly a half...

2024年7月19日 · Media in category "History of videotelephony" The following 8 files are in this category, out of 8 total.

2020年5月8日 · A technology allowing most of us to keep working effectively during the COVID-19 pandemic is called “videotelephony,” which is real-time, simultaneous audio-visual communication between two or more users.

2023年9月10日 · English: This category covers all aspects of videotelephony, such as telepresence, UMTS video-enabled mobile phones, videophones, video conferencing, web cameras, and so on, whatever the transmission media (for example, ISDN, satellite transmissions, traditional landline (POTS) telephone systems and VoIP (Internet)).