Got a threatening and bullying  message from this number claiming to be the IRS.  It was a clear case of a scam outlined here http://www.irs.gov/uac/Newsroom/IRS-Warns-of-Pervasive-Telephone-Scam 

If you get calls from this number,  hang up and report it to the IRS. IRS does not call people to shake them down.  It sends proper legal letters.  

Claimed to IRS agent investigating unpaid legal fee.

IRS:   http://www.irs.gov/

http://www.irs.gov/uac/Report-Phishing
phishing@irs.gov

http://www.irs.gov/uac/Tax-Scams-Consumer-Alerts
http://800notes.com/forum/ta-8c2f64bf2b91fa5/irs-warns-of-telephone-scam

•If you owe federal taxes, or think you might owe taxes, hang up and call the IRS at 800-829-1040. IRS workers can help you with your payment questions.
•If you don’t owe taxes, call and report the incident to the Treasury Inspector General for Tax Administration at 800-366-4484.
•You can also file a complaint with the Federal Trade Commission at FTC.gov. Add "IRS Telephone Scam" to the comments in your complaint.

http://bizbeatblog.dallasnews.com/2014/03/irs ... hing-scam.html/

http://www.mercurynews.com/ci_24016224/fremon ... ty-targeted-irs

http://www.dallasnews.com/business/columnists ... ity-thieves.ece

http://www.latimes.com/business/money/la-fi-m ... y#axzz2wk6O5un4

This people are idiots every one knows that the scam calls are going around and the idiots are still calling people around.

Got a same call from 202-241-6848 claiming IRS legal problem case.
Foreign accent was so heavy, it was a joke.
Anyway, beware of such scam.