Sennheiser SC260 Duo NC Wired Headset for the Avaya 9620
Wantek Corded Telephone Headset Dual w/Noise Cancelling Mic plus Quick Disconnect for AVAYA Aastra Allworx Adtran Alcatel Lucent AltiGen Comdial Digium Mitel Plantronic - 602QS1 | Novatech
IPD IPH-160 Professional Monaural Noise Cancelling
1 x Customer Returns Beebang RJ9 Telephone Headset with Microphone Noi – Jobalots
Headset for Avaya 5410 5420 5610SW 5620SW 5621SW IP Phones Home Office Call Centre Noise Cancelling Mic Comfortable Headband - QD010 + EAR510 Single Ear : Amazon.co.uk: Electronics & Photo
Avaya L159 USB Stereo Leather Headset - Avaya Products
RJ9 Avaya Phone Headset Compatible with Avaya 1600, 9600, J100 Series IP Phones Model Noise Cancelling Plus 3.5mm Adapter for Smartphone: Amazon.co.uk: Electronics & Photo