Anyone else who gets these ridiculous phone calls should report it to the Treasury Inspector General for Tax Administration (TIGTA) at 1.800.366.4484 or at www.tigta.gov. I lifted this right off the official IRS website and this is what they said to do.
recieved same message about irs suing called back got a man with a thick arab accent i asked him to identify himself and he went crazy i said i would report this number to the police and he got even angrier.
I blocked my call and called these clowns to f with them. I can hear the transfers going through and finally I reached their boiler room operation...a heavy accented women says "IRS" I ask what Office...she stumbled answering it. I told them I was calling ICE on them to lock them all up. Nothing but a bunch of illegals working their scam...call them back and mess with them...block your number first - *67. That will teach them to mess with the US.