Have a look at this:
Even if you don’t know what Cisco TelePresence is, you’ll definitely get a feel for it from this deceptively simple, yet highly effective commercial!
A relatively recent offering:
Cisco TelePresence is an innovative, new technology that creates unique, in-person experiences between people, places, and events in their work and personal lives—over the network.
And according to what I heard today at a local Cisco Networkers event, all you need is 6 Mb/s!