Person by the name of Officer Rob Schneider posed as representing the IRS. Said there would be a lawsuit if I did not call him back at 305-587-2978. This is definitly another scam. Also received a call of the same nature from 800-252-3563 wanting me to call back this number (208) 843-8063 which I did not. Also a very threatening call demanding a return call.
Caller left a message stating he was from the IRS and there was a warrant out for my arrest. The caller was trying very hard to disguise his accent (English not this person's first language). Clearly a spammer. Blocked the call.
Report it here to The Treasury Inspector General for Tax Administration (TIGTA) .. maybe if enough of us report it they'll go after this thief. https://www.treasury.gov/tigta/contact_report_scam.shtml
Got same thing to mo ole phone today. Man with thick accent no longer says he's from IRS just says "this is about a federal investigation. It is VERY IMPORTANT you call me back immediately to see a video presentation about your case". I went ahead & reported to the IRS via link you provided anyway.