1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7281024-f-4b4e5b27-c5e3-4bfd-9085-92fddd6c2dd6.png?width=208&height=450)
Press Apps.
![](http://wmstatic.global.ssl.fastly.net/ml/7281024-f-ec4139f6-bccd-48b3-a122-62debfa39d9c.png?width=208&height=450)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7281024-f-b3875ff7-54ee-49d1-9bd0-2a064335a485.png?width=208&height=450)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7281024-f-1d775962-4847-4f46-809f-a11b5244e2bc.png?width=208&height=450)
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/7281024-f-f674cc46-029e-46fb-bc16-1c9c8a69349f.png?width=208&height=450)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7281024-f-a72f9dd3-47e3-4593-aa28-2ac75053c519.png?width=208&height=450)
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/7281024-f-bafad0f3-8937-437c-a06b-29baa7dee141.png?width=208&height=450)