A recording states the IRS has filed a lawsuit against you yada yada yada, and to call the number back. Garden variety scam of some weird sort although I have no clue what they are after other than a prison sentence.
This is a scam. The called me and I called them back indicating to them, I am a Police officer. They hung up on me twice then blocked my phone number. DO NOT CALL BACK DO NOT WORRY! SCAM SCAM SCAM SCAM SCAM!!!!!!!!!!!!!!!!!!