US users of Gmail are now equipped with a super awesome feature that allows them to call any mobile phone within US and Canada for free (atleast till the end of the year) and at minimal rates in other countries. The service went live yesterday and within 24 hours, 1 million calls were made using the service. No doubt, it has turned out to be a big success. Google’s official Twitter account disclosed the numbers some hours ago.

You can use this feature by clicking the “Call phone” at the top of your chat list and dial a number or enter a contact’s name. Google has also planned to make this service available globally soon.