The Plantronics HIS Adapter Cable -AVAYA/YEALINK U10p-S has the following features;

• Connects directly to the integrated headset port on Avaya 1600 and 9600 series IP phones
• Allows you to connect a compatible Plantronics wired headset
• Takes advantage of full wideband audio that is offered with Avaya 9600 IP phones when paired with a wideband audio headset
• Quick Disconnect capability (QD) allows the headset to detach without losing the call