Panasonic KX-DT543-Black Digital Telephone (Refurbished)3 line Graphical LCD with backlighting 24 freely programmable function keys EHS (Electronic Hook Switch) Speaker Phone, handset and headset with full duplex The Panasonic KX DT543 is a corded digital telephone which is designed to work with Panasonic KX DT590 48 key DSS console business telephone system. With it's 3 line graphical LCD back lit display the intuitive user interface offers fast access to phonebooks and features. Also it have 6 levels of