Audio Tone | Headset Status  | 
Ring tone | incoming call | 
  | 
  | 
Single high tone | pairing confirmation  | 
  | 
  | 
Single low tone  | initiate voice  | 
  | activation  | 
  | 
  | 
Dual high/low tone  | voice tag not  | 
  | recognized  | 
  | 
  | 
Single high tone | end call  | 
  | 
  | 
Series of 4 tones,  | power off | 
high to low  | 
  | 
  | 
  | 
Fast high/low tone  | no network/service  | 
every 5 seconds  | 
  | 
(max. & min. volume  | 
  | 
confirm beep) | 
  | 
  | 
  | 
  | 
  |