Leaked images show WhatsApp with voice-calling feature on iOS
Following its acquisition by Facebook for $19 billion, WhatsApp was known to be working on a voice calling feature set to launch in Q2 2014. Now alleged leaked images claim to show how VoIP calling on WhatsApp will work.
WhatsApp keyboard with embedded camera icon
iPhoneItalia has got its hands on new leaked screenshots of the iOS 7
 app featuring VoIP voice call support. With support for VoIP, WhatsApp 
users will be able to make voice calls with their smartphones and 
tablets over Wi-Fi as well as cellular connections. The leaked 
screenshot shows an ongoing call with four circular buttons that allow 
muting the call, switching to text messaging, putting the call on 
speaker and lastly a button to end the call. On the upper side of the 
screen, one will find the contact details such as phone number, photo 
and name.
Another image shows the keyboard, revealing an embedded camera button
 that should allow users to take instant snapshots even while messaging.
 According to reports circulating the web, users can continue messaging 
on WhatsApp even while on a voice call. The app will display a coloured 
bar titled “call in progress” when a user moves from calls to access 
other apps.
Considering the fierce competition, WhatsApp is speculated to offer 
the feature absolutely free, which could ruffle feathers of mobile 
operators. It should be noted that users can make voice calls via 
Facebook Messenger.
Image credit: iPhoneItalia