How does Charm Blue 3 turn on VOLTE?

1. First, find the setting application icon in Charm Blue 3 main interface and click to enter, as shown in the schematic diagram.

2. Then you can see the dual card and network options at the bottom of the settings page, and click to enter, as shown in the schematic diagram.

3. Finally, we will see the VoLTE option under dual card and network interface. At this time, we just need to turn on the switch button, as shown in the schematic diagram.