Who called from 5714717694

This is an unwanted call that is threatening that IRS is suing me!!

I Just got called from this Number  with an automated message telling me they were the IRS and  filing a lawsuit "to" me

These jokers just called and told me IRS was suing me about 2008-2013 taxes and I owed them$ 6700.00get alawyer or pay now so I told them I will get a lawyer then I called my accountant he told me its a scam then I got on the computer typed in the phone number to find out for sure I fell commer know

Message "Officially a final notice from IRS Internal Revenue Service.  The reason of this call is to inform you that the IRS filed a lawsuit against you.  To get more information about this case file please call immediately on our department number.  571-471-7694"

Only OFFICIAL message from the IRS comes via the USPS, not via phone or anything else