Polycom Compatible VXI VoIP Wireless Headset Bundle with Electronic Remote Answerer (EHS) included | SoundPoint® Phones: IP 335, IP 430, IP 450, IP 550, IP 560, IP 650, IP 670, VVX300, VVX500, VVX310, VVX600, VVX400, VVX1500, VVX4
Call Center Headset for Polycom SoundPoint IP Phones with RJ9 Headset Jack : Amazon.ca: Electronics