Same threats as all the others - "do not ignore this call, etc."  

I just received a recorded message on my VM.  Of course half of it was cutoff so I could not hear the beginning but he indicated that ignoring this message would result in criminal charges in front of a grand jury.  He indicated that I needed to call him back and cooperate so that I could help him help me.  A good example of amateur social engineering.  He called from 213 401-2830 but left the 2744 as his call back number.

Same warning call from a guy with an accent. Garbage! Did not answer and his comments were recorded on the answering machine.

Why is it possible to block calls on cell phones but not on landline phones?

Following is a copy of a message I left on another site regarding this scammer.
Got another call the next day, but he didn't leave a message. Called back and he answered the phone "Dept. of Legal Affairs US Treasury." After a large number of "hellos" when I didn't respond, he hung up. Guess he doesn't have callerID, or he would have called back. There is a special website to report this type of impersonation: www.TIGTA.gov. Click the red button on the right labelled "IRS Impersonation Scam reporting."  Apparently there is a lot of this happening, but I believe this guy is a real amateur because this is really his phone number, not spoofing someone else's.  Maybe he's small potatoes that Treasury won't bother with. I'm thinking of buying a police whistle...

Same exact thing is happening.  He called starting at 5:30am and has not stopped today.  It is only a recording saying I need to call back.  I have tried just to tell him to back off but the lines are busy.  I love that there are sites like this one that we can go to, to find out the scammers.  Thank you.