This versatile telephone is designed to be easily adapted to suit various user needs in offices, hotels or homes. It comes equipped with sixteen programmable function keys that can be locked to prevent unwanted user changes and used for speed dialing or service requests. The telephone also offers an extra line interface/ data port for easy connection to a PC or fax, and support for a message waiting indicator function (switch controlled), making
it the ideal hotel telephone. Moreover the Dialog 4147 features a loudspeaker function ideal for use in business or private conversations where more people need to listen in or for simple voice monitoring. This enables for e.g., listening to telephone services (voice response systems, news, etc.), a mute key for switching off the microphone, a redial key for fast last number access and even an integrated headset port allowing a headset to be plugged directly into the telephone, with switching between the headset and the handset controlled by a key.