It went to voice mail. As I listened it was for someone else but the person spoke with a very heavy foreign accent claiming to be from the IRS and for me not to disregard the call. I haven't disregarded it. I'm posting it up here to warn people!
The person is named "Yoseph Capter?" and he talked with my mother. He said he was with the IRS. I called him back and it went straight to a personal voicemail. The scam meter is in dark red.