1 Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3f92c6a7-c936-4d06-9d68-c7bbeb7858fb.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-e4f3674b-1b69-4237-a8f5-f29b18867d0a.png?width=212&height=458)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0a50fc42-ad8d-4296-be6f-c0151a9703d6.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-72197230-c040-4806-8e7f-dd11c58d197b.png?width=212&height=458)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-faf2b240-1144-4d6e-8879-45284e185031.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-48a5c80d-6e79-4537-ba3c-5def54f7d033.png?width=212&height=458)