Avaya HIS Adapter Phone Headsets compatible Models : Avaya IP 1608, 1616, 9601, 9608, 9610, 9611, 9611G, 9620, 9620C, 9620L, 9621, 9630, 9630G, 9640, 9640G, 9641, 9641G, 9650, 9650C, 9650G, 9670. At noisy call center or office, INNOTALK Changer Pro headset with office phones or VoIP phones is the great choice.
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