Plantronics Discovery 640 User manual

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HEADSET FUNCTION STATE OF THE
BLUETOOTH DEVICE RESULT
Turn on power Power off Turns the power on
Re-link to
Bluetooth device
Power on
Link dropped Re-links the device
Reject call
Power on
Linked
Incoming call
Disconnects the call or sends the call to
voice mail, depending on your device
Transfer a call between
Headset and Bluetooth device
Power on
Linked
On a call
Transfers the call from
one device to another
Voice activated dialing
Power on
Linked
No call
Activates the voice recognition feature
HEADSET STATUS HEADSET STATUS INDICATOR
Powering on Blue light appears and fl ashes every 6 seconds
Power on Blue light fl ashes every 6 seconds
Powering off Red light appears and goes off
Power off Indicator is not lit
Charging battery Red light is on
Battery fully charged Red light is off
Discovery state Indicator fl ashes blue and red for 30 seconds
Missed call Infrequent fl ashing blue/red
Press any button to cancel
Ringing Rapid fl ashing blue/red
On Line Indicator (OLI) Blue fl ash every 10 seconds
Low battery Flashes red

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POSSIBLE CAUSE SOLUTION
Headset was not in discovery mode when
mobile phone menu selections were made See page 9 “Bluetooth Pairing.”
Incorrect menu selections were
made on your mobile phone. See page 9 “Bluetooth Pairing.”
POSSIBLE CAUSE SOLUTION
Your phone did not locate the Headset. Repeat the Pairing process on page 9.
Incorrect menu selections were
made on your mobile phone. Repeat the Pairing process on page 9.
POSSIBLE CAUSE SOLUTION
Mute is turned on. Press both sides of the
Volume/Mute Button simultaneously.
POSSIBLE CAUSE SOLUTION
The Headset is not turned on. Press the Call Control Button for 2 seconds until you hear
a beep or see the Headset Status Indicator glow blue.
Your Headset is out of range. Move the headset closer to
the phone or Bluetooth device.
Your Headset battery is dead.
Charge your battery using the AC
Power Adapter supplied, the AC Adapter
from your mobile phone, or a AAA battery.
The listening volume is too low. Press the top part of the Volume/Mute Button
to increase the sound heard in the Headset.