You can quickly call your favorite contacts without unlocking the screen, simply by drawing on the display.
Execute quick calls with the screen off on OPPO A37 (A37fw) as follows:
Step 1: Go to 'Settings' and choose 'Gestures and Motions'.

Select 'Gestures and Motions'.
Step 2: Choose 'Gestures when the screen is off'.

Select 'Gestures when the screen is off'.
Step 3: Choose 'Add gestures when the screen is off'.

Choose 'Add gestures when the screen is off'.
Step 4: Select your preferred gesture.

Select your preferred gesture.
Step 5: Choose 'Call'.

Select 'Call'.
Step 6: Choose your favorite contact.

Choose your favorite contact.
That concludes your setup process. Wishing you success!
