1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7051124-f-08070cf8-38bb-4429-8e3b-70f920df34df.png?width=210&height=454)
Press Apps.
![](http://wmstatic.global.ssl.fastly.net/ml/7051124-f-c96cdc71-56e1-480b-8261-4d47950257b6.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7051124-f-8a9e5ab9-6c09-4d4c-8e92-c1675b393440.png?width=210&height=454)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7051124-f-2d24a7fd-5295-4e20-b476-fea45fac83a3.png?width=210&height=454)
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/7051124-f-081b01c3-9662-4c0f-90b1-c12d3c446134.png?width=210&height=454)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7051124-f-1502ddc2-2020-4efc-a147-3cb0c4cff5c0.png?width=210&height=454)
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/7051124-f-25d05844-4abb-4b05-8963-7890d15590e8.png?width=210&height=454)