Who called from 7863580999

Received a voice mail regarding my federal offense from IRS ( IRS never calls so I ignore it), but  the person identified him self as David Gray. Interesting!!!! and annoying.

Received same message.  Voice was computer generated,  a hoax. Don't owe anyone anything.

a person named David Greg called and claimed I has a Federal offense and they could help me.

"...Failure to respond to this message will result having to appear before a magistrate of the court, a grand jury or...Return this call to David Gray, 786-358-0999 (Date:  March 29, 2016)

"...Failure to respond to this message will result having to appear before a magistrate of the court, a grand jury or...  Return this call to David Gray or David Greg (not clear as Indian accent), 786-358-0999 (Date:  March 29, 2016)