The media space created in 1980s in Xerox Palo Alto Research Center (PARC). The system including a monitor, a camera, microphone and speakers (video and audio) and allows people at the locations to work together and communicate with each other with a feeling of "being together".
Reference: Sara A. Bly, Steve R. Harrison, Susan Irwin. 1993. Media spaces: bringing people together in a video, audio, and computing environment. In Communications of the ACM. 36:1. 28-46.
http://people.cs.vt.edu/~srh/Media%20Space%20Home.html