Polycom Compatible Plantronics 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, VVX410
PLANTRONICS HW720-CIS Binaural Noise Canceling Cisco IP Phone Headset
PLANTRONICS HW520-SPA Cisco IP Phone Headset
Amazon.com: Telephone Headset w/RJ9 Quick Disconnect Cable for Cisco Plantronics Avaya Siemens Nortel Panasonic IP Phone Deskphone Landline Phone for Call Center Office w/3.5mm Audio Jack for Cell Phone & PC :