Turn off iPhone spam filter
Most of my incoming calls are sent directly to voicemail, without the phone ever ringing. This happens with unknown, callers, and contacts. Some contact go through OK, and others not. I have turned off every possible blocker, including "silence, unknown callers." I finally did a full factory reset on the phone, and still have the problem. How can I turn off the spam filter? I have missed a lot of important calls.
iPhone 11, iOS 17