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