I am not sure even what phone cable company belong to it, but there is an old telecommunications gray box on our house I would like to remove. I don't believe it is used for anything and I removed the thin gray wires. There is still a thicker black wire attached that goes to the pole on the street. Can I cut that too? We have addituional thick black wires coming to the house from the pole as well, that I know DO go to ares we use them.