I don't answer #'s I don't recognize.  Message was left "call 719-387-0337, an IRS agent is waiting to speak to you".  yeah, right.

Got an automated call from this number saying they were going to file a lawsuit against me and to call them after the call.

What are they doing about these guys? This is pretty serious, impersonating the IRS.

Informational post:
Your quesdtion is very similar to some of the statements in the list of Fatuously Asked Questions (FAQs) asked here.
Real answers to those questions or statements or demands are summarized at
http://phonehelp.2truth.com/faqs.html

Remember to return here, to 800notes.com, after visiting that site, and let us know if you learned something from those real answers.

IRS agent junk.  They actually left voicemail.    So annoying spam.