I too am on the DO NOT CALL list and I got a call from this same number. I tried to dial it back and the phone froze on "Connecting". It took me about 3 minutes to finally get it to shut off. I had to unplug both the phone and phone jack and leave it out for 10n seconds before it shut off. BEWARE!!!
FutureMarket Telecenter. When they call me they mask their company name, and Caller ID just says "Unknown Name." They're a telemarketing scam trying to raise money for American Diabetes Association, only the charity only cents on every dollar they bring in.