1. Find "Voice & Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-642b7e30-4bd2-43a8-8187-a79a35c83912.png?width=208&height=450)
Press Mobile Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-95d3f47a-eaaf-4578-af29-4c0de6b084b6.png?width=208&height=450)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-7489e52b-5db8-4795-a57f-6b015ac3e230.png?width=208&height=450)
Press Voice & Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-24612052-f660-456a-a9af-637d45d89f85.png?width=208&height=450)
2. Turn VoLTE on or off
Press the indicator next to "VoLTE" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b19d0c2d-bb57-415e-a24b-7253ffe951fe.png?width=208&height=450)
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-b19d0c2d-bb57-415e-a24b-7253ffe951fe.png?width=208&height=450)