1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-7cad6ffb-3861-43c8-a4c3-fea0bfeaf19a.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e22924b7-b63f-4400-9d5b-7288995a7b33.png?width=210&height=454)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-492ec5b4-1e54-44ab-8e83-a863c5592eec.png?width=210&height=454)
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-d1c581dd-4e22-4aac-8f81-3fc5296201d7.png?width=210&height=454)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-16247c7d-0b4c-4e9e-aa63-9acccac31727.png?width=210&height=454)
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-455e6a32-c572-4175-8493-c105938830e4.png?width=210&height=454)