Nortel Networks IP Phone 2004 VoIP Desktop Office Business Telephone NTDU92BB70. The Nortel IP Phone 2004 delivers traditional business communications in a network controlled by a Nortel Business Communications Manager, Meridian 1, Communication Server 1000, Communication Server 1000M or Multimedia Communications Server 5100. The IP Phone 2004 is directly connected to the LAN via a 10/100 BaseT Ethernet connection, offering simplified management and reducing the time and cost associated with moves, adds and changes.Nortel Part Number: NTDU92BB70Nortel Model Number: NTDU92Nortel Model Name: IP Phone 2004Features:> Up to twelve user-defined line/programmable feature keys> Integrated 8 line x 24 character monochrome display> Supports text-based converged (voice and data) application presentation as delivered by External Application Servers such as the Nortel Application Gateway 1000> Fourteen fixed keys and four context-sensitive soft-label keys> Integrated IEEE 10/100 switch with both LAN and PC ports> Secured communications with standards-based support of signaling, media path and device-level authentication> Simplified administration and network discovery with 802.1ab Link Layer Discovery Protocol> Supports optional IP Phone 2000 Series Key Expansion Module> Field upgradeable firmware via Trivial File Transfer Protocol (TFTP) or UNIStim File Transfer Protocol> English-text and Icon Keycap models