I got the same call, from Peter Martin saying (with an accent) he was making a second contact with me to demand appearance in front of a magistrate or a grand jury for some IRS enforcement action. I have no outstanding liabilities much less IRS issues. Has to be a fraud - I did not return the call.
Reveived 2 calls this mornig from 360-200-0964. As others have said they leave a messaGE saying they are from the treasury dept. And threaten legal action. I added it to my list and don't even asnwer. I know even legitmate bill collectors can't leave a meassage like that. And the IRS will not contac tyou by phone. You receive letters.
Call came from 360-200-0964 from a man with an accent who claimed to be Steve Martin calling from the US Treasury Dept saying I had a 2nd notice for a federal offense. I needed "to cooperate with us and help us help you". A repeat call came soon after. I hung up.