Origin
The concept of videotelephony was first conceived in the late 1870s, both in the United States and in Europe, although the basic scien… See more

Videotelephony can be categorized by its functionality and intended purpose, and also by its … See more

Computer security experts have shown that poorly configured or inadequately supervised videoconferencing systems can permit an easy virtual entry by computer hackersan… See more

For over a century, futurists have envisioned a future where telephone conversations will take place as actual face-to-face encounters with video as well as audio. S… See more

Components and types
The core technology used in a videotelephony system is digital compression of audio and video streams in real time. T… See more