Got the same voice mail messages, at least 6 on our machine. Called back and what sounded like the voice-mail person's voice answered; I got argumentative and was hung up on. Not sure what the scam is.
Caller with accent states the message is regarding an "enforcement action executed by US Treasury intending serious attention. Ignoring this will be an additional second attempt to avoid initial appearance before a magistrate judge or a grand jury for a federal criminal offense."
Gave number twice... 321-445-1597 Caller's message ends with ...
"I advise you to call (something with 3 syllables I can't understand) and help us to help you. Thank you."