19 Dec '12, 4pm

The End of the Public Phone Network

Sure. It’s interesting, actually, you should say “modern telco.” It’s almost an oxymoron. Telcos—the service they deliver hasn’t changed in about 80 years. So you and I are communicating via a telephone here, and we could have done that in the ’50s, and—in the most part—in the ’40s, and the only difference would be maybe a little bit different noise levels. A modern telco, however, you know, over the years, the phone companies certainly change what’s under the hood, and so they do go through multiple technology evolutions. The most recent one was to bring IP protocol into their networks. So most telephone companies these days move voice traffic and other types of traffic around their networks using Internet protocol. And so they sort of mix, in some cases, networks and parts of their network that would support data versus voice.

Full article: http://spectrum.ieee.org/podcast/telecom/internet/the-end...

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