![Samsung Galaxy S20 Ultra 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3cb91ddb-c165-4fa1-a78b-2e45ebf86257.png?width=150&height=320)
Samsung Galaxy S20 Ultra 5G
Android 10.0
1. Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-956db39b-641d-4aef-b316-5bfd39d6f957.png?width=206&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-4f847bae-2241-40db-ae57-1271e6419e2e.png?width=206&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-20643f80-8903-416f-99a4-48067e63ab63.png?width=206&height=456)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-de6853f4-c686-4d6e-a1f4-bfaff42041f7.png?width=206&height=456)
2. Turn VoLTE on or off
Press the indicator next to "VoLTE calls" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f2e3ddf3-322b-4097-a2a2-6ff141275f8d.png?width=206&height=456)
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-f2e3ddf3-322b-4097-a2a2-6ff141275f8d.png?width=206&height=456)