This number just called here again. NO message on my ans. machine. After reading the comments above, I'm glad I didn't ans. the call. I'm on the DO NOT CALL list, too.
Someone from this number called me 4 times yesterday and once already today. After review of the other posts, I looked up Thermo Spa - they are located in Wallinford, CT - exactly where this number is listed on my cell (yes, they are calling my cell). I have them blocked now. My cell is listed on the Do Not Call registry too. I have not done business with them either. I tried calling back this morning but the phone just rang and rang. Very annoying, especially when you do answer and the call is a hang up.