Basically a crazy person keeps calling me and bypassing their blocked number by turning off caller id. I know there is the option to silence unknown callers but the problem is it turns off all calls from anyone not in my contacts, and I get a bunch of calls from people not in my contacts. Its hard to ignore because this person will call constantly for hours on end. I saw there was some way to block these by using a 000000 saved number and blocking that but I think its us only.