The Panasonic KX-DT543 is the newest 6 line LCD back-lit display digital telephone with 24 programmable buttons and designed to work with the TDA, TDE, NCP and NS1020 gateway for the NS1000 (requires software upgrade). Featuring an ultra-modern design that has a focus on user friendly control and ease of use. For those users who need to use a wireless headset the phone features a built in Electronic Hook Switch that is Plantronics compliant. This allows for seamless use of DECT enabled headsets without the need for silly headset lifters. The speaker phone is full duplex which means there is no voice clipping when talking on the speaker phone. For operators and receptionist the KX-DT590 is available and adds 48 additional Direct Station Selectors buttons.