1. Find "Wi-Fi Calling"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fd20a15d-ce81-48df-a48b-5df01817ec84.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-332a0f73-26de-43e3-bc48-ebfb3c013cd1.png?width=210&height=454)
Press Wi-Fi Calling.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1c8d2e3a-1f87-46c5-9807-13e3ab49e031.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/7151223-f-1b2bf70c-1b8a-483f-9783-322fb98ab14b.png?width=210&height=454)
If you turn on the function, press Enable.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bb81176f-8b8b-40b0-a2ed-5f1dc1ff2cba.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/7151223-f-95e97fd2-db1e-4caf-9a85-b9dfbe049707.png?width=210&height=454)