The Panasonic KX-DT543-W 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. It also has 6 levels of adjustable handset, headset volume control. The phone has a fully duplex speakerphone which ensures that the conversation will flow both ways without clipping. It also features 24 convenient programmable line buttons, a built in electronic hook switch, wideband compliant, auto redial and navigator key.