The Hidden Cost of Google's Free Calls

The Gmail users who use the new service will be making voice calls, but they won't really be voice calls: like Skype, Google Voice uses Voice over IP to send voice data in much the same way servers send Web pages, MP3s or emails.

It's not a voice service; it's a data service whose data just happens to be voice. And that means Google's service is yet another nail in the coffin of the humble telephone call, something that's not so much dying as building up a mountain of milk bottles at its front door.


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