NRW1000 Said:
"My phone is set to reject unknown callers. However, an unknown number that I had also blocked came through and rang on my phone. My IOS is 16.6. Why were the functions by-passed?"
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Troubleshooting Rejecting Unknown Callers:
A. View Contacts Search Bar:
Go into the Contacts app and type the number in the top. If it pops up, then it is assigned as a contact. So, black the contact.
B. Use Malwarebytes Mobile Security:
The free version blocks popups. The paid version blocks out known spam numbers, and lets you add number to the block list. So, consider using it. Read the following post to see how to use this software: Blocked numbers - Apple Community. Get it Right in the App Store: Malwarebytes - Mobile Security - App Store