I telepresenced using the Tata marketed CISCO system in New Delhi few months ago and was converted. Three locations and after a few minutes, you just assume that you’re talking to people in the room. The clarity of the pictures and audio was astounding. Now with the costs and hassle of air travel increasing, this is clearly the way to do business. But you need a minimum 5 MBps link for a two-way; we used 15MBps for the three-location conference.