Knockin on heaven's door...?

near the end when it sounds like someone is calling someone: What does it say and what does it mean?

the guns n roses version

just an effect man just enjoy the music

On which version of the song do you mean ?

You just better start sniffin' your own
rank subjugation jack `cause it's just you
against your tattered libido, the bank and
the mortician, forever man and it wouldn't
be luck if you could get out of life alive"*

as per http://lyrics.rockmagic.net/lyrics/guns_...