Whatsapp has reportedly rolled out its calling feature that is available on running version 2.11.528 from the Play Store, version 2.11.531 from WhatsApp's website or it can be activated after users get "invited" by receiving a call.
According to Androidpolice.com, the feature gets activated after users receive a call on whatsapp from someone who already has it. After the call, Whatsapp is activated immediately after the app is closed and reopened again.
Once activated, there will be a 3-tab layout on the whatsapp homescreen showing calls, chats and contacts.
The calls tab shows incoming, outgoing and missed calls with precise timings.
