EON48s - Feature-Rich Digital Key Phone. ( Compatible only withMatrix PBX NE, PE, LE,GE,ME )Key Features -: > Full-Duplex Speaker Phone> 6 Line and 2 Line Adjustable LCD with Backlit> 12 Touch Sense Features Keys> Message Wait and Ringer Lamp> 64 Keys Expansion Module (DSS16x4)> Desk-Top and Wall MountingPhone Features -:> Call Hold> Mute> Do Not Disturb> Speed Dial> Hotline> Redial> Call Back> Auto Answer> Call Forward> Call Waiting> Call Transfer> Room Monitoring> Conference> Call Logs > Directory> Dial-by-Name> PagingDisplay -:> 6 Line and 2 Line Adjustable LCD with Backlit> LED for Incoming/Ongoing Call, Mute, Hold> Intuitive User Interface with Icons> Multiple Languages> Caller ID with Name, Number