This ATT / Lucent / Avaya Legend phone has 10 programmable buttons for line appearance or feature access. Its features include conference, transfer, hold, mute, HFAI, built in 2 way speakerphone and message waiting light. The tray could be pulled out for feature quick-reference. It can be desktop or wall mounted. It is compatible with Lucent Legend Multi-Function-Module that allows connection of a fax machine, modem or any other single line device. There are dual LEDs on each programmable button.