Silence Junk Callers

user_1yzay3 Thank you for confirming that information for us! Have you reviewed the information available here regarding the Silence Unkown callers feature?

With iOS 13 and later, you can turn on Silence Unknown Callers to avoid getting calls from people you don’t know. This blocks phone numbers that you've never been in contact with and don’t have saved in your contacts list. If you’ve previously texted with someone using their phone number or if a person has shared their phone number with you in an email, a phone call from that number will go through.

Calls from unknown numbers are silenced and sent to your voicemail, and appear in your recent calls list.

Incoming calls will come through from people that are saved in your contacts list, recent calls list, and from Siri Suggestions to let you know who’s calling based on phone numbers included in your emails or text messages.

Have you cleared your texts and call logs from any of these numbers? That may be why it is still ringing through. I would recommend clearing the call log and any text messages that may have come from scam numbers and see if it still occurs.