5" id="AutoNumber1"> Mitel 5224 IP Phone Dual Mode The dual mode Mitel 5224 IP Phone is a feature-rich, multi-line IP speakerphone with full duplex handsfree operation. It is geared toward users who must change their telephone feature set to match their changing needs. Features 2 line x 20 character backlit display with contrast control 3 context-sensitive softkeys for intuitive feature access 24 programmable multi-function keys with dual-color LED indicators 8 fixed feature keys - hold, superkey, message, speaker, microphone, transfer, conference, redial, cancel Peripherals and modules support