Claimed they were IRS and were suing

Claiming they where the IRS and taking me to court, it was a recorded message

Got a pre-recorded message on my landline answering machine stating "the IRS has filed suit against you" but they don't say a specific person's name.  I also received this same exact pre-recorded message with the same female voice from 214-838-9674.  I tried calling back so I could have a little fun of my own but it only rang once and then did fast busy signals.