To take advantage of the full wideband audio that is offered with the Avaya 1600 and 9600 IP phones, use this HIS-1 Adapter Cable The Quick Disconnect (QD) capability allows the headset to detach without losing the call. Use this HIS cord to connect your Plantronics H-series headset directly to your Avaya 96xx and 16xx series IP telephone including Avaya IP 1608, 1616, 9608, 9610, 9611, 9611G, 9620, 9620C, 9620L, 9621, 9630, 9630G, 9640, 9640C, 9641, 9641G, 9650, 9650G, 9650C, 9670. This provides "on-hook" functionality so that you won't have to pickup your telephone's receiver with every call when using your headset. Only purchase this cable if you have one of the phone models listed below. Compatible Avaya IP phones: 1608 1616 9608 9610 9611 9611G 9620 9620C 9620L 9621 9630 9630G 9640 9640C 9641 9641G 9650 9650G 9650C 9670

Alternative to Plantronics Connector Part Code 72442-41 HIS cable, Manufactured by VoiceJoy. GLOBAL TECK GUARANTEE: 100% Happiness with your purchase. Contact us if you have questions about compatibility with your phones as this adapter is only compatible with a select number of Avaya phones. BUILT FOR THE OFFICE: Low-cost, affordable, commercial-grade cable adapter - works with select office phones (see list below) with a headset port (RJ-9/RJ-22). EASY QUICK DISCONNECT: Allows for easy disconnect from phone without removing headset. HIS ADAPTER CORDS: Compatible with same QD Headsets,Including Plantronics and VoiceJoy headsets.