I put them on speker phone, wait for a human to answer, "just a minute, let me get to where I can talk in private", and put them on hold, music and all. They tried to waste my time and failed but I succeed in wasting their moneyt!
This person just called me claiming that I won a carnival cruise... press 1 to speak to a "cruise representantive" or press 2 to add to do not call list. I added to do not call list. :-P
Received a phone call from this number when I realized it was an unsolicited call I started talking in Chinese. I Then hung disconnected the call. I have found in the past that will stop the caller. Don't know if it will stop this company however!