Call every few days, never leaves a message

I have no clue who this is and they never leave a message.

I just got a call from same number and when I answered I got nothing but dead air. I called it back and it said it was not a working Number so I called my cell carrier and they said it comes from an IEP address from someones computer using voice over and that is why you cant call it back is because the phone number really dosn't exist. Maybe someone out there that is really good at computers might be able to figure out how to find out where the IEP address is then we would all know

Just keeps calling. Stop the call

saying that i was subscribed to a magazine and wanted my job info and my credit card info.

Called me at work and told me I was going to be arrested for fraud because I had never paid payday loan that I supposedly received, threatened to call my employer even left message with friend after I had talked to them tried to be very intimidating.