VXi 203411 VEHS-P1 Electronic Hook Switch for Polycom SoundPoint IP Series Electronic Hook Switch for most Polycom SoundPoint IP and all VVX Series desk phones (Polycom SoundPoint IP300, 301, 500, 501, 600 and 601 do not support EHS capability) Answer and end calls remotely from your headset, up to 300 feet from your phone. Save desk space (mounts directly under the base of VXi's V150 wireless solution). Works automatically, and is easy to set up