Calls several times a week but no one ever answers.

this so called number call the buisness lines, normally noone is there. But this morning, I heard a male voice, talking to a female, which I could barely hear. Here is the conversation (male) "I'm beautiful baby, yes Iam" (female)" you say....." (male)"I am beatiful".
So I was just ready to to yell WTF into the phone, but I missed my chance, next time.

just got a call from this number.  I didn't answer, they didn't leave a message.

I was the person who reported on the 22nd of May 08.  They have called 3 or 4 times since.  I just answered and they said i had purchased a vacation in orlando a couple of years ago and not gotten it.  I didn't, so i told them i was too busy to talk and they said sorry and we hung up.

Every day I get this call, sometimes 2 or 3 times. never a message. How do I make them stop?