Just received message on my landline from "IRS - this is your last notice that the IRS has filled a lawsuit against you.  Call immediately at Dept. number 732-655-9513.  Thank you."  I've had IRS scammer call before.  Numbers are blocked.  The IRS does not operate in this fashion.

Left voicemail that IRS lawsuit filed and number to call. Scam and 800Notes has no category for this type call.

The closest call type you can select is "Prank call". You can also write "Scam call" in the caller field.

Received a broken up choppy automated message on my cellphone voice mail, couldn't make out much but part of the phone number, sounded like the last couple of digits of the phone number.  Called them back from my land line and got a fast busy signal.

After I received call from "IRS" early yesterday with message to my land line, they called 16 more times all day long.  NOT the IRS.   They have made a lot of money with this scam.  I will report this to the IRS.