Why does volte appear on mobile phones? How to eliminate it?

Volte is the high-definition calling function of mobile phone.

1. Click the Settings button on the phone screen.

2. On the settings page, click the option of dual card and mobile network.

3. Then click the icon of the SIM card of the mobile phone.

4. As shown in the figure, we can see the VOLTE call option. Click the green switch button at the back to turn it gray, that is, turn off the function.

5. At this time, the VOLTE function is turned off and the icon on the screen disappears.