1 Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-653cf248-6e86-4ad3-bacc-0e2aebcc127e.png?width=204&height=366)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8750a0df-e7e6-4b1e-aa9f-51ed809b31ae.png?width=204&height=366)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-76c8559d-b4fc-438a-a90e-e817648ba996.png?width=204&height=366)
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-654351d6-7af0-4371-9794-ed6ec9ac197c.png?width=204&height=366)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f1f4bb66-f938-4b3c-aa4d-573d3b6d8e0d.png?width=204&height=366)
3 Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9dcf6d31-a397-40df-97d7-3c53bc4b7bfc.png?width=204&height=366)