25Base Setting6 - Base melody settingYou can change the melody of the base , you have 3 choicesUse and to select "BS setting"Press OK"Base PIN" is displayedEnter 1590 or your new code if you changed it , then press OKUse and to select "Base Melody" , then press OKUse and to select your melody1 to 3 , you also can set the ringer OFF ,choice 0Press OKPress twice C or once to return to standby mode6 - Base volume settingAfter you have chosen the melody, you can also adjust the volumeUse and to select "BS setting"Press OK"Base PIN" is displayedEnter 1590 or your new code if you changed it , then press OKUse and to select "Base Volume" , then press OKUse and to adjust the volume ( 1 to 4)Press twice C or once to return to standby mode