Whatsapp might be prepping to release the in-app voice calling feature for its popular IM service.
Rumors have been floating around that WhatsApp is actively working on adding voice calls to its IM app that is used by over 500million people.
Viber, Skype and BBM are Whatsapp rivals and all have in-app voice calls and after Facebook's acquisition of Whatsapp for $19Billion, it isn't far-fetched that they will be looking to expand theit functionality.
Here are screenshots of what appears to be the Voice call feature on an Android device, it shows the app using voice calls and also voice call conversations, these screenshots were taken from a beta build of whatsapp running on Android:
No official word from Whatsapp or Facebook on when this feature will be available.
There has also been rumors of Whatsapp being available via your web browser, so yea good things are coming to the $19Billion valued IM service