1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-441da185-c82c-4086-b613-9bb60500f9c5.png?width=206&height=448)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ec89b2fb-8b86-4e12-8ac0-01d15ec92774.png?width=206&height=448)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-060b259a-721c-42d9-ae9b-b07daad1ed6a.png?width=206&height=448)
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-29141569-46ce-47cc-9af4-190713239f70.png?width=206&height=448)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ed301ea9-bac9-40d5-aaad-f53508e6f13d.png?width=206&height=448)
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-3499e2f5-35ef-4240-9d33-e7228ffb3029.png?width=206&height=448)