Avaya Mobile USB Headset Adapter with GN2100 Mono Headset (NTEX14MDE6) - New | eBay
Rj9 Plug To 2 X 3.5mm Jack Convertor Cable For Pc Computer Headset To Avaya 1600 9600 Snom Yealink Phones 30cm - Pc Hardware Cables & Adapters - AliExpress
Avaya Compatible Jabra Biz 1925 VoIP Noise Canceling Headset Bundle – Newfangled Networks
Avaya Headset HD Voice with HIS Adapter Compatible with Avaya 1600, 9600, J100 Series IP Phones Model, Plus 3.5mm Adapter (Monaural) : Amazon.ca: Electronics
Amazon.com: MAIRDI Telephone Headset with Noise Cancelling Microphone & HIS Cable for Avaya IP 1608 1616 9601 9608 9611 9611G 9620 9621 9630 9631 9640 9641 9650 9670 J139 : Electronics
Amazon.com: VoiceJoy Single Ear Ultra Noise Canceling Headset & HIS Cable for Avaya IP 1608, 1616, 9601, 9608, 9611, 9611G, 9620, 9621, 9630, 9631, 9640, 9641, 9650, 9670 J139,J169 and J179 Phones : Electronics