Professional Headset Systems for your Inter-tel model # 8520, 8560, 8600, 8620, 8660, 8662, 8690 by Acoustical innovations 1-800-747-9615
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Headsets for Inter-Tel Phones


 www.mitel.com                Inter-tel model # 8520, 8560, 8600, 8620, 8660, 8662, 8690, Encore ECX 1000 and 2000  Most people choose the direct connect headset system for use with the through the headset port. 
 
Did you know you can use an amplified system like our GA-100 amplifier through your headset port?  This will give you the added ability of additional receive volume and transmit volume along with the silent mute switch and supervisory functions.