This VoIP service allows people to make calls and send messages over the internet. Signing up for Google Voice gives you: A ...

The VoIP service uses Gmail as an interface ... To bolster its recent launch, Google will also be installing old fashioned phone booths in airports and universities around the U.

Missing, however, are rivals Yahoo Inc. and Microsoft Corp. Neither of their IM or VoIP systems communicates with Google's. But there has been movement among the competitors toward ...