To try and scam you, is for what. Rest assured, the IRS does not call nor do they file lawsuits or issue warrants for arrest. If the IRS wants to contact you, they do so by US Mail. Just block and ignore these calls.
Have received this call several times each time indicating is a final notice. Apparently It's is filling a lawsuits against me is a recording an never ask for an individual. Caller ID shows it as a wireless caller located in Texas. This is ridiculous.