Oppo How to Block Unknown Callers automatically
Oppo 9955
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The Oppo-Smartphone offers the possibility to reject unknown callers automatically, meaning that if the phone number is not saved as a contact, the call is automatically rejected.
The function also offers as an exception, if the same caller within 3 minutes again, it is not blocked.
Android 11 | ColorOS 11.0 | Google Phone
- Tap on Phone
- Open the Menu
- Tap on Settings
- Tap on Blocked numbers
- Enable or disable Unknown