XBlue 47-9005 WiFi IP Telephone Adapter Eliminates costly Telephone cabling - Save money and install yourself Quick Installation - X-50 WiFi IP Telephone Automatically Sychronizes with the X-50 Server and is ready to use in seconds! Mobility - Move your X-50 WiFi IP Telephone anywhere in the office Eliminate all wiring by using X-50 WiFi IP telephones for all telephones (up to a system maximum of 24 telephones)