Core Features: Supports Yealink T30/T30P/T31/T31P/T31G/T33P/T33G Compatible with Yealink wireless headsets (WH62/WH63) Plug and play Incoming calls are signalled in the headset earpiece Control calls through remote wireless headset: Answer calls, Reject calls, Hang up calls, Switch between multiple calls, Hold, Mute & Adjust the volume.