I have gotten the same call about 5+ times.  Usually it rings and rings but I did get a live person and I asked why the IRS would be calling drom a cell phone in Plano, Texas and then I told them I wanted their name so my husband who does work for the US Government can check on his credentials and he hung up.    I have gotten calls from others too.  From Dept of Treasury, Windows, and others.  I usually mess with them and string them along and then they get so frustrated they hang up.

Today was the 4th time I have received a message from this number. The caller states that the IRS has a lawsuit against me and to call back   for details.  I chose not to return the call. The voice seemed to be a female's voice and she spoke in a monotone and stated that several calls of this type have been sent to me and she expected a response.

I actually got in touch with this number but I knew it was a scam. If you tell them you know they will actually tell you it is. The person stated they are from Pakistan and there is no jobs that is why he was doing it. ITS A SCAM DONT PAY.

I did the same thing. He actually told me he knew it was wrong but there were no jobs in Pakistan.

Scam. Ignore it.