Have received 14 calls from them starting Feb 3, 2011.  They never leave a message.  Read on another website that they were calling to ask for Social Security Number and Address.  Sounds like another scam.

Yes, they keep calling me too. I finally answered today and they said they were with a company called SMS. They wanted me to verify that my last four numbers of my SS were correct. I told them I wasn't verifying anything until they told me what they wanted. He played games a little longer and I hung up on him!

I called back and they wanted to know from what number I was calling from.   Mark this as spam!!!