Panasonic KX-TA30850 12-Key Telephone with Monitor (Black/Refurbished)The Panasonic 12 Key Telephone with Monitor KX TA30850 is a basic system phone with monitor speaker and 12 flexible Central Office (CO) Feature Buttons that are preprogrammed at the factory for one touch outside line selection and station intercom dialing. Key Features: 12 programmable line buttons One touch intercom calls Room Monitor Paging Speed dial Message waiting light with CO voicemail Redial button Forward do not disturb button Pause transfer