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.