So here’s the whole idea: using GMail, you can now make free phone calls to the U.S and Canada via your Gmail account online. Basically, the service uses your laptop’s microphone to send awesome call quality (I just tested it myself) to anyone that you’re calling. And you can call internationally too, by adding (cheap!) amounts of money to your account, like 2 cents per-minute to Paris.
What’s The Catch?
There really isn’t one. Except one:
If you don’t have a Google Voice account, Gmail will use a random number in storage to make that call. If your friend calls you back, he/she gets a message saying that they were called with Gmail .But since I have a Voice account, I wouldn’t care at all.
A great idea. Pretty cool. Alright, it’s awesome. Google’s caveman video of how it works is after the cut.
Source: Gmail Blog