Called to say I owe back taxes

Received a call with a recording from the IRS asking to call # 239.257.4345 for details. When I called, I spoke with a person who didn't speak english well (heavy middle eastern accent). when I asked for his credentials, he got upset, gave me his first and last name (which I couldn't understand) and a badge ID. When I asked him how can i verify his information, he directed me to www.irs.gov and then he hung up the phone.

I called back and sounded like the same person (at least the same accent) and he began saying lewd comments and profanity.

Who are these people?

A message tells me I owe back taxes to the IRS. This is a FRAUD.

I got a call as well. Sick of these darn people !!!!!

Caller ID says James Strong.  Claims to be from the IRS mentioning a case number without mentioning the actual case number. The IRS does not call people on the phone it is a scam.  They only send letters.