I received a call from this number, but they left no voicemail.  I called back from another phone and the man who answered was very evasive.  Would not confirm the name of the business or the reason for the call until I confirmed my own number, which I refused to do.  I stated that I wanted to know the type of business that was calling me to confirm that it wasn't a wrong number, and he insisted that he couldn't reveal that information until I gave my phone number.

He became increasingly beligerent, demanding to know what I was trying to hide and why I was refusing to answer.  

Eventually I hung up.