The Link 14201-40 headset is designed to enhance efficiency when working with Panasonic phones. This is primarily achieved through the EHS function, which allows the user to answer a call even when they are not at their desk. The Link 14201-40 is compatible with the IP phones KX-NT553 and KX-NT556, as well as the digital devices KX-DT543 and KX-DT546.