DO NOT ANSWER THIS CALL !  I received several calls from this number today and I finally answered it to tell the people to stop calling (thought it was a salesman). No one answered. When I hung up, my phone kinda froze. I tried to power off the phone and it would not power off ! I took the battery out as fast as I could. It seems to work fine now but I might have picked up a virus! :(  I will never answer another call I do not know!