I have problems receiving voice calls on my Huawei P smart 2019

Press the phone icon.

Press the menu icon.

Press Settings.

Press Call forwarding.

Press the required divert type.

901

901

Key in 901 and press ENABLE.

Press the Home key to return to the home screen.

Press the phone icon.

Press the menu icon.

Press Settings.

Press Call forwarding.

Press the required divert type.

Press DISABLE.

Press the Home key to return to the home screen.

Press and hold On/Off until your phone restarts.

Press the phone icon.

Press the menu icon.

Press Settings.

Press Call barring.

Press the indicator next to the required barring type to turn the function on or off.

Key in your barring password and press OK.

Press the Home key to return to the home screen.