Huawei P30 lite
Android 9.0
Select help topic
1. Find "Wi-Fi calling"
Press Settings.

Press Wireless & networks.

Press Mobile network.

Press Wi-Fi calling.

2. Turn Wi-Fi calling on or off
Press the indicator next to "Wi-Fi calling" to turn the function on or off.

When Wi-Fi calling is active, the Wi-Fi calling icon is displayed.

3. Return to the home screen
Press the Home key to return to the home screen.
