I recently bought a millet 10, prompting that VOLTE will not be turned on. I searched my mobile phone for a long time, but I couldn't find where the VOLTE function was. What should I do?

1. Unlock the phone screen first and find the "Dial" icon of Xiaomi's phone.

2. In the dialing page that opens, we click the "More Functions" button in the lower left corner.

3. The function option window will pop up, and click the "Phone Settings" icon in the window.

4. Then click the menu item "Dual Card and Mobile Network" on the opened mobile phone settings page.

5. Next, open the dual card and mobile network page, and you will find the setting item "Enable Volte HD calling" in the page.

6. Click the switch behind the setting item to set it to the on state. In this way, our mobile phone will turn on the Volte HD calling function.