Avaya Definity 8405B Basic Phone (White/Refurbished)This Avaya Definity 8405B Basic Phone is a multiline business phone that has an enhanced design and functionality. It has a built in listen only speakerphone. The Definity 8405B Phone works in either 2 wire or 4 wire DCP Port. Key Features: 9 Fixed Feature Buttons 5 Call Appearance Buttons One Touch Access Buttons Multiple Lines for Call Handling Call Coverage Bridging Conference Hold Mute Transfer Shift Drop Hold Test Volume Control Red LED Message