I answered the number, thinking that it could be an call from an internship program that I submitted an application form. It was so noisy on the line that I could barely hear what the person was saying. First, I think he said something about me winning a prize, but it was too hard to hear for sure. He said something about a security system at a house, asking if I was the home owner. I told him I'm not a homeowner and don't even own a house (I live in an apartment.) We ended the call there. I found this page when I wanted to check the phone number out because my dad was a victim of a "one-ring" call scam a few months ago. He might have been a telemarketer/scammer for all I know, but I don't want to label it as such without knowing for sure.