This one got through but I use an answering machine to screen calls. My phone services nettalk duo and they have instituted a Robo caller that picks up spam with the score greater than 60% and starts talking to them until they give up and hang up. It might take them a while to figure out they are talking to a machine. tee-hee. Nettalk duo's demo number for this is: 402-702-3366
I tried submitting the number to a complaint website with the FCC and it would not accept my complaint, stating that the number I submitted was not in service.... Weird.