Avaya Definity 6402 Single-Line Phone (White/Refurbished)This Avaya Definity 6402 Single Line Phone is a single line phone that works with Definity Phone Systems Release 6. 1 or higher. Key Features: 2 Programmable Call Appearance Buttons 2 Feature Buttons Conference Transfer Hold Speaker Last Number Dialed One Way Speaker Handset Handset Cord Line Cord Professional Appearance White Condition: Refurbished