I also got a call from this number saying it was Robert Morris calling. He said that to avoid having federal charges filed I had to call 201-331-1435 and they could help me with this matter. Right..... and I suppose they would do that if I would send them money. Not going to happen. Let them go out and earn their money honestly instead of trying to bilk the hard working people. What a scam. Unfortunately there are people that will be gullible enough to send them money!!!

Someone who said his name was Robert Morris called for the 2nd time and said I had to call back to avoid serious charges by the federal government.

I got the call yesterday, February 11th,  at 6;58 PM.  They left a message urging me to call back to avoid federal criminal charges about my transgression regarding US Treasury Department.  If I don't call back, i would face serious charges and my case will be brought to a grand jury.  The very authoritative sounding man said that his name was John Fitzmorris (?).
When I called the number this morning a man with an almost impenetrable Indian accent said something about my 2012 federal income tax return.  He said they were working for the IRS.

Got the same call as others. Told to call him to avoid IRS charges and to go before a magistrate.