How to Enable 'WiFi Calling' on iPhone XR (iOS 13.3)?br br Note: Before enabling WiFi Calling, Please Check whether your Mobile Network supports it or not. After that, follow the instructions below:-br br Step 1: If you are not connected to the WiFi network, Connect it first.br br Step 2: Open 'Settings' App.br br Step 3: Scroll down to 'Phone,' and then tap on it.br br Step 4: Tap on Wi-Fi Calling.br br Step 5: Tap on 'Switcher' next to 'Wi-Fi Calling on This iPHone' to make it 'On.'br br Step 6: Tap on 'Enable' at the Pop-up.br br It's done.