90 Volt Message Waiting Lamp (Programmable for either T/R or alternate pair) * Data Port (RS) "Desktopper" Shape * Dataport * Directory Card * Last Number Redial * Flash (300/600 m.sec) * Tone/Pulse Switchable * Fully Modular * Matte Finish * Visual ring Indicator * 1 year Warranty * Electronic Ringer * Receiver Volume Control * Desk or Wall Mountable * Hearing Aid Compatible