There is no man here! I get calls all day and night, I asked for them to take me off the list the said; NO! And hung up in my face. I have missed important calls because I don't want to answer calls I don't know. They are from all area codes. And the constantly come back to back. I don't know where they are but they all sound like Indian Middle Eastern people. When you call the number back it's a busy signal or it says this caller is not excepting calls. This is so very annoying and the National Do Not Call List doesn't help. How do I stop this without changing my number? I use my phone for business and it would be so inconvenient for my clients.