Google offers free voice calls via Gmail

For the moment only users in the US will be able to make calls from inside their Gmail account.

Phoning anywhere in the US and Canada will be free until the end of the year, while calls to the UK, France, China and Germany will cost 2 cents a minute.

Until now Google offered computer-to-computer voice and video chat services.

"This is a real big deal because now hundreds of millions of Gmail users can make phone calls right from their Gmail page," Craig Walker, product manager for real-time communications told BBC News.

"They don't need to download an additional application or anything to start making really high-quality low-cost calls. For the user it means much more efficient and low-cost communications."

The product link will appear on the left hand of the Gmail page within the "chat" window. A "call phone" option will pop up along with a number pad to let you dial the number of the person you want to talk to.

Google said money raised from international calls will pay for the free US and Canadian calls.

See www.bbc.co.uk for full version.