this is definitely a scam. i didn't answer and the caller left a voicemail that started partway through their automated recording "...if you own your home, press 1 for more information."
They just called my Skype number, which I hardly give out to anyone, but which I did give out recently to an insurance company that was verifying a claim I filed against my landlord. I wonder if they sold my phone number or something. Or maybe they just saw me in some Skype directory I don't know about.