The Plantronics HIC Adapter Cable was developed by Plantronics specifically for Avaya/Lucent phones. It has the Plantronics trademark QD (quick disconnect) on the end of the cable, which allows you to quickly disconnect while leaving your headset on to move away from your desk. On the other end is the phone-type plug that works with most Avaya/Lucent phones. For a compatibility reference you can use this link: Plantronics Compatibility Guide. Simply follow the directions, and the phone and model number will give you the correct information you need.
Plantronics SupraPlus Wideband – Noise-canceling Binaural Headset
Part Number: 64339-31
It’s not just what you say; it’s how you’re heard. The SupraPlus is the solution of choice for contact center agents the world over.
HIC Adapter Cable
Part Number: 49323-46
With Quick Disconnect, for connecting corded headsets directly to Avaya phones.
This is just a sample of what you might need. This was with the Avaya phone model 4606.
Call 800-914-7996 any time you feel that you need help, contact a support specialist.