After calling them back to take me off their list, I've not have a call from them since.  Quite impressed IMO.

I receive an automatic message every week form this man calling from that number

I *67 and called the number.  They're a service provider who run campaigns for various clients.  I'd normally be skeptical about it, but this one I trust.  If you call the number there is an option to take your number off their list.  Hopefully they will not call again.

I hate getting these messages and they don't answer when you pick up the call.  I called them as I was getting fed up and so I followed the instructions and now  I have not received any calls from them.  At least they honor your request to be taken off their call list.  I'll give them that much.

Many of those companies that leave voice mail ads, not many have kept their word when I had requested to be taken off their calling list.  They have done that so far and I have not had a call since.

I contacted these folks to take me off their list and I was thinking to myself that they're just lying their teeth off and they're not going to do what they had promised.  But I have not received any other voice message ads from them so far... to be determined.