On my iPhone (iOS 26.5), the Call Filtering "Spam" setting under Settings → Apps → Phone isn't working as described. The setting's own text says calls identified as spam or fraud by Xfinity Mobile will be silenced, sent to voicemail, and moved to the Spam list, but in practice these calls ring through normally with no silencing at all, even though the toggle is enabled and Unknown Callers is off. This looks related to a broader CallKit regression that's been reported on Apple's Developer Forums since the iOS 26 beta cycle (threads 794740, 799694, and 800415), where call-blocking and filtering entries are being ignored or applied inconsistently; other developers have already filed Feedback IDs FB19140680, FB19140594, and FB20276986 for related symptoms. It would be great to get this fixed, since it defeats the purpose of carrier-level spam filtering on the phone.