My dear, I've telephone appliance with model "Panasonic VB-5211"and it had been working as central appliance ,Now I want to set it up again to run as normal telephone"direct current telephone and cancelling the central system" . Another Demand :I wish on you to provide me with its"Panasonic VB-5211" manual guide. My e-mail address is :salamasaeed@hotmail.com with my best wishes