These dummies must know that the IRS has posted and said over and over under no cirumstances do they call. The inform you a something by mail or a direct visit.
I got the same recording. I actually called back and spoke with someone. I knew something wasn't right after they gave me a weird address I have never lived at. He also provided me with a case number as well.
Phone message on my cell phone today, 1/13/2016, stating I am being sued by the IRS. I'm not aware that I have any issues with the IRS. Besides I'm sure they'd send a letter first, many letters. I'm not going to return the call to 202-492-8816. I'm sure it is a scam