Jabra EHS Adapter for Cisco IP phones: 8851, 8861, 8961, 9951, 9971 | DX650, DX70, DX80 phones 14201-30
Amazon.com: Jabra Link 17 EHS Adapter for Polycom : Electronics
JABRA Pro 920 Polycom IP Phone Wireless Headset EHS Remote Bundle
Amazon.com: Jabra Link 17 EHS Adapter for Polycom : Electronics
Jabra Link 17 EHS Cable for Polycom 321 331 335 430 550 560 SoundPoint IP Phone 616174267257 | eBay
VXi EHS Adapter for Polycom IP SoundPoint and VVX desk phones | #VXI-203411 | For Polycom: IP 335, IP 430, IP 450, IP 550, IP 560, IP 650, IP 670, VVX300, VVX500, VVX310, VVX600, VVX400, VVX1500, VVX410 (VXI-203411)