Avaya Definity 6408D+ Speaker Display Phone (White/Refurbished)The Avaya Definity 6408D+ Speaker Phone is a speakerphone that works with Definity Phone systems Release 6. 1 or higher. This phone needs a TN2181 digital circuit card or TN2224B digital circuit card. Key Features: 24 Character LCD Caller ID Date and Time 8 Programmable Call Appearance 4 Navigator Keys For Menu Mute Conference Transfer Hold Speaker Last Number Dialed Two Way Speakerphone 8 Personal Ring Options Handset Handset Cord Line Cord