[***] posing as IRS agents wanting personal info..... They blocked my number after I said I was law enforcement.

Keep calling and leaving messages saying they're the IRS.  Yeah right...

Another IRS scam.  "Agent Julie Smith" (which was a computer generated voice, like Siri ) claiming to be from the IRS, and threatening legal action, warned me to not neglect this call.  I'm supposed to call back on her direct line to avoid prosecution.  Yawn.....  

I got exact same call as DLJ above.  Computer generated voice claiming to be "Julie Smith" from IRS, threatening legal action, requesting that I or legal representative call back, etc.

This is clearly a SCAM.  My regional IRS office isn't located in CA, the number they called isn't on record with the IRS, and when the IRS contacts individuals, they invariably do so IN WRITING (not with pre-recorded non-human phone messages!).

I'd assume if I were stupid enough to call back the scammer on the other end would try to get sensitive personal info from me like social security number, date of birth, and anything else they could use for identity theft or other fraud.

Received the call on 11/26/2014, 9:20am CST.  Automated IRS/legal action call.  Automated messaged "required" a call back to the same phone number.  Glad there are others who are also recognizing the SCAM-SPAM voice call