Yes, I have a used phone I haven't been using for about 6 months. I want to place it back in service. The phone was assigned to port 101 on my block extension 26. I now need it to be on port 105 extension 30, I have done this before but for the life of me can't remember how to change the port and extension. I think I can remember how to change the extension but the port has got me stumped. Can anyone help? Thanks!!