Telepresence is a very advanced form of video conferencing, where seperate display devices are used for each user. Its main feature is very high quality video and it requires huge bandwidth. Its fidelity is also very high..
telepresence is high definition and it needs the user to feel that the other users are in his place and hence it needs its surroundings to be adjusted.... it is high bandwidth and high speed also the user must be able to do things on the other place being in where he/she actually is....