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!

Very cool!