have received multiple calls from this number, as i do not answer unknown numbers, i have yet to have my own experience with it.  though judging from Amy and LIssa's description, i would advise not answering it.

I called the number it is a debt collector - CMRE.  They are a collection agency that works with health care providers and possibly others.

This number keeps calling but will not say who or why they are calling. Without me first suppling a ss#, date of birth and other personal information. So they in turn say that they are not allowed to say why they are calling without me providing private information. So we are at a stale mate.

You did the right thing! If they can't and won't tell you why they called, then its more then likely a scam call or telemarketer.

I dont know who they are. But they keep calling and nobody is there