Voice chat is already very popular and making phone calls from Gmail is also getting popular. Last year, Google started phone calls to USA mobile/landlines from Gmail and now this service is available outside the U.S. by offering calling in 38 new languages.
With the phone calls made from Gmail, you do not have to pay any connection fees, you pay just the talktime. You can now buy calling credit in your choice of four currencies (Euros, British pounds, Canadian dollars or U.S. dollars).
If the service is available in your country you’ll see a little green phone icon show up at the top of your chat list and you’ll be ready to make calls (you’ll need to install the voice and video plug-in if you haven’t already).
If you are calling USA from USA, then your calls are free. However if you are calling outside USA to USA, then you will be charged 1 cent per minute.
The calling rates offered by Gmail phone calls are a bit costly as compared to other voip providers like Localphone, Rebtel. Gmail voice calls to India are charged at 2cent per minute as compared to less than a cent per minute offered by many voip providers.