This Electronic Hook Switch (EHS) adaptor lets you remotely answer and end calls away from your desk using the multi-function buttons on your wireless headset ear piece.  It is designed to work with Polaris Wireless Headsets, and is compatible with the following Polycom telephone models:  Soundpoint IP 320, 321, 330, 331, 335, 430, 450, 550, 560, 650, 670,VVX500 & VVX1500.

SIP software version 3.0 or higher and BootROM 4.1.0 or higher required.

IP320/321/330/331 require the SP9013 adaptor in addition to the 8220 Polaris Polycom EHS adaptor.

Please contact Polaris on 1800 626 505 to confirm compatibility.