Avaya 1608-I IP Desk phone3 row x 24 character white backlit display (3.5 inch diagonal)Supports 8-line appearances/feature keys with dual LEDs3 contextual soft-keysFixed feature buttons include four-way navigation cluster, volume up/down, mute, speaker, headset, menu, telephony application, hold, conference, transfer, drop, contacts, call log, redial, quick-access voicemailHigh-quality 2-way speakerphoneMessage waiting indicator Integrated headset jack Desk or wall mountable with optional wall mount adapterFirmware upgradeable 8 personalized ring patternsDual Ethernet ports for connection of phone and collocated PC w/VLAN separationStatic or dynamic address assignmentPowered via 802.3af Power over Ethernet or optional 5V local power supplyCOMPATIBILITYThe Avaya 1608-I IP phone is compatible with Avaya IP Office 6.0 or higher and Avaya Communication Manager 3.0 or higher