SAN FRANCISCO — Google stepped up its attack on the telecommunications industry on Thursday with a free service called Google Voice that, if successful, could chip away at the revenue of companies big and small, like eBay, which owns Skype, telephone companies and a string of technology start-up firms.
Google Voice is an expanded version of a service previously known as GrandCentral, a start-up that Google acquired 20 months ago. It is intended to simplify the way people handle phone calls, voice mail and text messages. Read more here @ NyTimes.com
Also Check this page from Google Voice