The latest iOS version of WhatsApp has been updated in I-Tunes finally, version is 2.12.1 that brought-up the voice-calling feature in whatsapp.
In January, The company had already announced that, it had the 700 million monthly active users+ another 100 million monthly active users in just 4 months of release sing calling feature.
How To Enable WhatsApp Voice Calling on iPhone
- update the latest version of whats app from I-Tunes store.
- Ask some friend to call on your number who already had this feature in Android.