When I answer there is never anyone on the other end

I got one of those today. My voicemail picked it up. I called it back, expecting to hang up when a recorded menu told me who it was. Nobody answered after nine rings.

WTF?????

Got the same call today..

i GOT A CALL FROM THIS NUMBER ASKING ME FOR SOMEONE WHO DOES NOT LIVE HERE
i TOLD HIM NO ONE BY THAT NAME LIVES HERE BUT ME AND HE GOES ON TO SAY THAT THIS CALL IS BEING RECORDED LIKE I AM SUPPOSE TO BE SCARED OR SOMETHING AND HE HANGS UP ON ME . I RE- DIAL AND HE SAID MISS i DONT WANT TO TALK TO YOU AND HANGS UP.

This number belonds to Allied Interstate collection agency - they collect for student loans and others