The "Do Not Disturb" mode on the Oppo-Smarphone disables all sound output and vibrations, and if desired, calls or notifications can be hidden or a part can be added to the exception.

On the Oppo device, the "Do not disturb" mode can be switched on or off in the settings or also in the quick settings.

Android 10 | ColorOS 7.0
Step 1:  Open the  Settings
Step 2:  Tap on  Do not Disturb
Step 3:  Enable or Disable  Enable now
  1. Open the Settings
  2. Tap on Do not Disturb
  3. Enable or Disable Enable now

Oppo Instructions
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