Android users will have to update to 2.11.508 version to be able to use voice-calling on Whatsapp.

According to reports, users will get a call from WhatsApp for the newly launched feature. Reportedly, users who will have the feature updated will notice an icon nestled amidst Chats and Contact tabs. The WhatsApp caller interface will keep the record of the recent calls and is quite similar to that of a phone directory of a smartphone.   

WhatsApp making fresh additions to it's application is enough to tell that the owners want to make the app more lucrative which will in turn enhance the user base of the application in India. The recently launched WhatsApp for web users is currently available through the Google Chrome browser and also supports Android, BlackBerry and Windows Phone. Though it's is still not accessible to  iOS users.

WhatsApp rolling out it's voice-calling feature is seen to be in comparison to the another messaging app Hike's announcement of making  free voice-calling available on 2G and 3G network connection. Although, Hike has already made it available to its around 35 million users in India. WhatsApp globally has more than 700 million active users while in India its user base has gone up by more than 100 million and it is estimated to surge ahead with features like voice-calling making their way in the Indian market.