inputs.text: placed handset phone - looking filter reduce noise phone line intended place wall place phone cord ithowever jack not purpose filter placed handset phone case never noticed phone plug phones handset smaller regular phone jackthe description said reduce handset noise not phone line noise perhaps clue since missed thought would write review others knowi never rf interference actual handset phone noise usually comes phone line since phones rf filters thehem filtered gets handsetso anyway little unclear itehem going help think particular issue might solved filter phone handset maybe