The number 1 social networking website Facebook has recently launched a new feature through which iPhone users from US can make free calls using their new Facebook messenger app. And according to BBC news Facebook is also working on adding the new feature for android and BlackBerry users which is great I think.
You can only make calls to other users who also have Facebook messenger app installed on their device, Facebook messenger app will be also available for other operating systems said the official.
To make free calls you will have to tap the “i” button which you will find at the top right corner of the chat box, and then you can choose your Facebook friend and press the free call button. I am saying this again this feature is only available for US iPhone users.