WhatsApp, known for its immense popularity for free instant messaging system on mobile phones using wi-Fi or 2G or 3G connectivity has 700 million users all over the world. With the updated version, WhatsApp users can call for free over a WiFi or 3G/4G connection.

Make sure that the person you are calling has the updated version too. Unlike before, the official calling feature will automatically get activated with the new updated version and there is no need to request your friend or someone with the calling feature to call you again and activate it yourend. Click Play Store 2.11.528 or download the version 2.11.531 from the official WhatsApp website. However, users of WhatsApp should first download the updated version 2.12.5 from Google Play or from the WhatsApp official website.

WhatsApp voice calling feature is now opened to all users and fans ending one-year of beta testing and raising enthusiasm among the fans of the most-successful app in social media sphere now, owned by the Facebook.