To resolve Volte issue kindly follow the given below step:-
To enable VoLTE:- Go to Settings > Mobile Data > Mobile Data Options > Enable 4G > Voice & Data. Android users can enable the VoLTE service. Go to your phone's Settings > Mobile networks > Turn on VoLTE call
After performing the troubleshooting steps if the issue still persists, kindly get back to us with additional information- Error log File, Video or Screen-shots. This will help us to further investigate and resolve your concern. Samsung Members > Get Help > Send Feedback > Error Report > Attach Error Log.
