is a set of interactive telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously. It has also been called visual collaboration and is a type of groupware. It differs from videophone in that it is designed to serve a conference rather than individuals.
It's quite obvious to predict that the use of high-quality video conference applications will become cheaper and more wide-spread in the future and thus two-way meetings will be more commonly held virtually. The concept of the technology is quite simple and easy to implement.