Previously available only via friend’s invite, WhatsApp has finally rolled out its voice calling feature to all users on Android. The voice calling feature is automatically enabled to all users running on version 2.12.5 of WhatsApp.
The user interface now sports three tabs: Calls, Chats and Contacts. We analysed the call quality and found out that it’s consistently inconsistent. Sometimes the call quality was really good with no dropped rates, but for most of the time we received echos and dropped calls. We also checked the call quality of Viber and Facebook, which just worked smooth like butter. So, there are lots of glitches on Whats app calling as of now, but hopefully the update will fix these issues.
This calling feature is expected to be available for iPhone users in a couple of weeks. This would be followed by Windows Phone and certain BlackBerry models.