Best solution so far is to turn off as much as possible concerning the phone useage within my phone. Now, i get a low click. And unknown callers are sent to voicemail. So no ring, just a click, and only a quick banner, and its over. I can live w it. Of course anyone that needs alot of unknown calls wont like it, but the less I get the better. I still get 4-5 per day unknown voicemails that always say the same thing. I might think about it in the evening and delete them all. Its really a waste of time do anything except trash.