1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b4fbc85f-d217-43e2-bedd-f25877a7bf0e.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cf862cd9-7850-4947-bfce-89401b1944f5.png?width=212&height=458)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e2c33b32-6e64-4ee0-b427-872de4e571da.png?width=212&height=458)
2. Turn Wi-Fi calling on or off
Press the indicator next to "Wi-Fi Calling on This iPhone" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0fa849ff-bf0f-4901-846b-43dff806523c.png?width=212&height=458)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-856d8a81-9fb3-4773-bd18-930747237126.png?width=212&height=458)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-08c21e75-76a5-4093-ab5e-00f7114cb06a.png?width=212&height=458)