Zenitel Turbine Intercom Audio only Full Duplex Group call AVC AEC HD voice Outdoor IP66 IK08 95dB at 1 m (Open Duplex) 105 dB at 1m(Half Duplex) PoE 6 x I/O 12mA LED driver output SIP UL Cisco Certified Avaya Certified NEC Certified -40 to 70 C (-40 to 158 F) UV Resistance 10 W Amp Audio out 600 Ohm