für Yealink SIP-T28P und SIP-T26P...The new and advanced Yealink Headset Adapter EHS36 provides the technical interface between your Yealink T28P or T26P telephone and a compatible wireless headset. It is approved for use with major manufactures Plantronics and Jabra wireless models. The unit is easy to install, simply link EHS36 to the EXT port of the phone and, effectively "plug and play" giving you control of your Yealink phone and the ability to answer and hang up calls remotely.