With all of the PDF files I've looked at. I still can't find a way to get into this system. I need to change the password of an extension but there is literally no documentation from previous techs. I would like to attach a laptop to the com port and get in that way because the keyboard port on the unit is bad and I can't do anything with a direct connection. Where can I get the software to get to the unit or is there a command prompt way to get in?