Avaya L119 Office Headset - On-ear, Wired, Leather Earpad Material, Mono, Adjustable Headband, Active Noise Canceling, (RJ-9) Connector, Black - 700514051 at TigerDirect.com
RJ9 Phone Headset - Wide Band Receiver Best Pro Monaural Headset + Virtual Compatibiity RJ9 Headset Adapter for Avaya Nec Panasonic and Most Phones - Walmart.com
RP2236 Avaya Mobile USB Headset Adapter NIB | eBay
Yealink Compatible Jabra Engage 75 Wireless Mono Headset Bundle with EHS Adapter | SIP-IP T-Series Desk Phones, Bluetooth, USB, Skype for Business | 13-hour battery, Busy Light | #9556-583-125-YEA
Poly Da75 Usb-a / Usb-c Digital Adapter (plantronics) - Works With Poly Call Center Quick Disconnect (qd) Headsets - Acoustic Hearing Protection - Works With Avaya, Genesys &cisco Call Center Platforms : Target
USB Headset Adapter. The Nortel Mobile USB Headset Adapter extends high quality digital audio and business telephony features from Nortel Communication Clients including the IP Softphone 2050, Multimedia Communication Server 5100 and