Oppo How to Block Unknown Callers

Oppo 91

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 10 | ColorOS 7.0
Step 1: Open the Phone -App
Step 2: Open the Menu
Step 3: Tap on Settings
Step 4: Tap on Set Rules
Step 5: Tap on Block calls
Step 6: Enable or Disable Block calls from private numbers
Step 7: Confirm with Turn on
  1. Open the Phone-App
  2. Open the Menu
  3. Tap on Settings
  4. Tap on Set Rules
  5. Tap on Block calls
  6. Enable or Disable Block calls from private numbers
  7. Confirm with Turn on
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