MAKING CALLS
Note: Your H670 supports both Handsfree and Headset 
Profiles. Accessing call functions depends upon which 
profile your phone supports. See your phone's user's guide 
for more information.
Function  Action
Receive a call    Tap the Call button
Mute or unmute a call  Tap both Volume 
   buttons
Reject a call    Press and hold a  
      Volume button until  
      you hear two  
   descending tones
End a call    Tap the Call button
Redial last call    Press and hold the
      Call button until you
      hear two ascending
   tones
Make a voice dial call  Tap the Call button
      and speak the  
      name after the tone
MAKING CALLS 
CONTINUED
Function  Action
Answer a second   Tap the Call button 
incoming call
End an active call and  Tap the Call button
resume a call on hold
Disable the    First slide the switch
indicator light     toward charging plug  
   (to turn headset off),  
   then press and hold
   both Volume
   buttons AND slide 
   the switch towards  
   the microphone (to  
   turn headset on)
Note: Some features are phone/network dependent.
INDICATOR LIGHTS
With the Charger Plugged In
Headset Indicator  Headset Status
Steady red    Charging
Off   Charging complete
With No Charger Plugged In
Headset Indicator  Headset Status
Off   Power off
Steady purple    Powering up
Steady blue    Pairing/connection  
   mode
10 rapid purple flashes    Connection successfu
Slow blue flash     Standby (not on call)
Quick blue flash    Incoming call
Slow blue pulse    Connected (on a call)
Slow purple pulse   Connected 
   (on a muted call)
Red flash    Idle (not connected)
Quick red flash    Low battery
Note: After 30 minutes of inactivity, the light stops flashing to 
conserve power, but the headset remains in standby mode.
AUDIO TONES
Audio Tone    Headset  Status
Ring tone    Incoming call
Single high tone    Phone network not  
   available
High to low tone    End call
Single high tone when  Volume at minimum
pressing volume button  or maximum
Two ascending tones  Mute enabled
Two descending tones  Mute disabled
Low to high tone    Connection    
   confirmation/voice  
   activation
No audio indications;  Out of range
deteriorating quality
Two tones    Low battery
repeated every 30 sec.