1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-94c46443-f54a-4369-8ffe-1196017e77be.png?width=210&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5f9598b6-7069-4450-87bf-55069b616617.png?width=210&height=458)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3c0e66ba-2fe7-431b-a415-e1a49dfabf67.png?width=210&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-89a4b33c-3cff-4801-a415-528248da6391.png?width=210&height=458)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a62777a7-21f0-498d-ad4b-b0039ffb82ab.png?width=210&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-0f9008d3-5623-46c3-b231-e0a84499c5c9.png?width=210&height=458)