[. . . ] [. . . ] When setting the DIP switches, it is difficult to identify the open and closed positions. The open and closed positions are shown below. 9 TOP 8 CLOSED (ON) DIP SWITCH POSITIONS OPEN (OFF) FRONT 11 (4 Places) TM W M2000 GR N 1 RED 2 L isten Call Ch S elect T alk 2 3 4 5 1 6 Volume Headset ® [. . . ] [. . . ]