The Avaya 6400 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. Compatible with Definity ECS systems. (Note: The 6402 is does not integrate with IP Office.)
2 line x 24 character LCD
2 programmable call appearance/feature buttons
Fixed feature buttons for conference, transfer, hold, speaker, and last number dialed
Built-in 1-way (listen only) speakerphone, and eight personal ring options
Fixed feature button, allowing access via the dialpad to 12 Definity system features