1. Find "Voice & Data"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-768466fe-c6a5-437d-b78f-e6a8bc65ebce.png?width=208&height=450)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1fa9e749-ee62-431a-9e77-2b10fb13da83.png?width=208&height=450)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-a3ef6a29-e4e8-4e61-b677-012e21f0cc15.png?width=208&height=450)
Press Voice & Data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-6af99d14-2649-48b1-ad74-0df4891ef270.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-47d7ad81-d1c3-42e9-8d0c-4921c37e5e09.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-47d7ad81-d1c3-42e9-8d0c-4921c37e5e09.png?width=208&height=450)