Like others here, the functionality of the phone app (on a PHONE, for heaven's sake) works inconsistently, and the complex call screening options are seriously hit or miss. Google's standard response is to clear app data which causes certain call history to be cleared as well (and doesn't fix the issues). Why this can't work predictably well and do what *I* want first time, every time, on a phone, with updates that just work without clearing data manually, is beyond my understanding. (Dev's unhelpful response proves my point exactly.)