1 Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7121023-f-2ff25a93-a310-4d1a-9ef4-0dc13817d784.png?width=212&height=458)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7121023-f-5c7a292b-7ab8-4711-b8d0-269fa0f5f863.png?width=212&height=458)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7121023-f-6b7267c5-7c8a-4b94-be29-d237663c528d.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/7121023-f-2eee55c9-8e13-44bf-a75e-bab2156aa4e4.png?width=212&height=458)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7121023-f-c70e3c4a-244f-498a-9aa0-690bdfbc3057.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/7121023-f-0d1a43cb-5bc2-4074-a59f-1e35df8fe50c.png?width=212&height=458)