Received a voice mail message saying to call the IRS Hotline. This is time sensitive. Voice sounds unclear.

Call received and left a voice message. Immediate IRS call back required at the above number. I called back and asked the party for their IRS agent ID number -he provided 237211--the person representing the IRS claim I had a arrest warrant & law suit against me. I hung up on him. I know the IRS doesn't work in this manner.

got two calls from this number today.  I googled the number and got this site.  I filed a complaint with the IRS, the website Henry gave above  www.TIGTA.gov

I have received unsolicited calls from this number as well.

On Sept 26, 2014, I received couple of voice messages from this number regarding the IRS action. I decided to call and a guy answered. He said he could help me avoiding the IRS action by wiring him $6786.00. I pressed him and he gave me a name of Mark Hamilton, IRS badge number - 237211. I checked and found out this was a scam. I tried to call  the number again today (Nov 12, 2014). There is a voice greeting now and sounds like Indian or Pakistani.