AT&T Avaya Lucent Definity 6424D+M Grey Display Phone (108331240) - Refurbished

 Features 2 line display (24 characters) 24 programmable feature buttons Navigation keys: menu next previous exit Fixed feature buttons: conference transfer hold speaker mute redial 2-way speakerphone 8 personal ringer options Integrated headset jack Adjunct port for 100A (analog interface module) Compatibility Definity R6.1 or higher IP Office R7.0 - IP500 control unit must be running full IP Office mode (not compatible in quick mode) IP Office R8.0 or higher - IP500 control unit must be running Essential Edition (not compatible in basic edition) Requires a station port on a TN2181, TN2224/B/CP, IP403/406/406V2, IP400 Digital Station 16/30, or IP500 Digital Station 8/16/30