Avaya 108018185 6402 Digital Single Line Telephone

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
Compatibility
The 6402 Telephone is compatible with Definity R6.1 or higher and Avaya IP Office.
It requires an available station port on a TN2181, TN2224/B/CP, IP403/406, IP400 Digital Station 16, or IP400 Digital Station 30.