A few weeks ago, WhatsApp CEO and co-founder Jan Koum hinted that the messaging app would get a VoIP feature. Now there is a leaked screenshot of what it may look like. The leaked screenshot was sent to iPhoneItalia. The leaked interface looks similar to the iOS 7.1 user interface with circular buttons and a keyboard that looks similar. There is also a camera button on top. Supposedly, you will be able to use the feature over WiFi or cellular.