Into Thin Air (Forbes Magazine)

Now the same kind of destruction, courtesy of the omnivorous Internet, is engulfing the local phone monopolies and even threatens the cell phone industry. It promises to transform the phone system with new competition, plunging prices and a passel of new features. This next wave begins with "Voice over IP," which means zapping phone calls over the Internet (or private networks built like the Internet). It continues with "Voice over Wi-Fi," Wi-Fi being a free wireless on-ramp to the Net.

And Vinton G. Cerf , adds:

"Our business models will have to change; we have to rethink our network. [...] The things the telecom industry sells may become an adjunct to what's on the Internet."

Via Forbes’ Perspective on the Demise of Traditional Telecom Business from the Wireless Weblog