VoLTE Must be enabled to use Unity-On-A-Sim
- Press Settings.
- Press Connections.
- Press Mobile networks.
- Press the indicator next to “VoLTE” to turn the function on.
- Press Settings.
- Press Mobile Services.
- Press Mobile Data Options.
- Press Voice & Data.
- Press the indicator next to “VoLTE” to turn the function on.
- Slide your finger upwards starting from the bottom of the screen to return to the home screen.