This sounds like a burgeoning new scam in which they threaten jail and so forth if you don't make immediate payment. First, the IRS always contacts by mail and rarely calls, and when they do, they never make threats.
Incoming call to my 818 area code cell phone at 9:14 a.m., roborecording about "your credit card account." I hung up, total time of call was 9 seconds. Our landline is area code 360. Seemed to be same call style as "Rachel of credit card services," not heard from on landline for a few months.