We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. See our disclaimer Requires Panasonic PBX System for Operation. Not Standalone system. 24 programmable buttons, 12 COs & 12 Personal/Feature, and 10 Fixed buttons Requires Panasonic PBX System for Operation. Not Standalone system. Navigation key for volume, display, contrast, and function selection Backlit Dial Keypad and 1 Line Backlit LCD Display Backlit LCD display shows time, day, month, dialing number and call duration