Avaya 1616i IP TelephoneHigh quality full Duplex conference phone LCD big backlit display: 4 lines x 24 characters Screen with adjustable viewing angle Multiple caller appearances for easier call handling Designed for the high volume 'Navigator' user profile A context sensitive user interface 16 line appearances feature keys Can be expanded to a max of 48 appearances features keys via optional 32 button AOM Each line key includes dual LEDs (red, green) for easy status