Who called from 6513467552

Almost unintelligible man saying he was from RevClear. No idea who or what that is. Nothing comes up on a Google search.

Difficult to understand person called my father (which is odd because I'm 43 years old and live in a different state) asking for me saying he was from RevHall or something like that.

No one at the other end of the line

No one speaks when answered, have had multiple calls

He called asking for an unknown person to me. The proceeded to interrogate me . I hung up.