Lucent 6408D+ Definity IP White Office Digital Voice Display Telephone 6408D01A-264. The 6408D+ Series Digital Voice Telephones deliver the right combination of business communication functionality. For example, you can personalize your phone by programming the buttons on your telephone simply by choosing from a selection of convenient features.Lucent Model Number: 6408D+Lucent Part Number: 6408D01A-264Avaya Part Number: 108163973Features:2 line X 24 Character LCDRinger sound adjustmentDesk or Wall MountableSpeakerphone12 Soft KeysHold with indicatorTransfer ButtonMute KeyRedialConference Phone3-Step Volume Control on Handset