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4
"BEEP"
Using the AAA Battery
One battery will operate the Headset for up
to 15 hours of talk time.
1. Twist the bottom of the Battery Charger
counter clockwise and release the Battery
Holder.
2. Insert the Battery into the Battery Holder.
3. Slide the Battery Holder back into the
Battery Charger and turn clockwise.
4. Snap Battery Charger to Headset
Carrying Pocket.
5. Insert the Headset into the Headset
Carrying Pocket.
TURNING THE HEADSET
ON AND OFF
1. Turn on the Headset by pressing and
holding the Call Control Button until the
Headset Status Indicator glows blue. If
you are wearing the Headset, you will
hear a beep when the power turns on.
The Headset Status Indicator will flash
blue every 6 seconds when the Headset
power is on.
NOTE: When the Headset is turned on,
the Headset Status Indicator will
indicate the charge level of the
Headset.
Greater than 2/3 battery charge =
3 flashes red
1/3 to 2/3 battery charge =
2 flashes red
Less than 1/3 battery charge =
1 flash red
2. Turn off the Headset by pressing the Call
Control Button for 6-8 seconds until the
Headset Status Indicator glows red or
until you hear the beep. The Headset
Staus Indicator remains unlit when the
power is off.
PAIRING (LINKING) WITH YOUR CELLULAR PHONE
Before using your Headset for the first
time with your Bluetooth cellular phone
or device, you must activate the link
between the Headset and the cellular
phone. Make sure the Headset is fully
charged.
• Look in your Bluetooth device
manual for the section that describes
how to set up a Bluetooth wireless
connection.
• Move through the menu selections
on your phone until the phone display
shows "Look for Devices" or
equivalent, as a selection.
1. With your Headset turned off, hold
down the Call Control Button until
the Headset Status Indicator just
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To link or pair to multiple Bluetooth devices, repeat the steps above.
USING MULTIPOINT (MORE THAN ONE BLUETOOTH DEVICE)
Plantronics Discovery 640 supports
Multipoint technology, which permits
simultaneous connections with two
different Bluetooth audio devices.
To pair another Bluetooth device:
repeat the steps above.
Initiate a call: The headset will
assume you wish to initiate a call on
the device recently used.
To use the second device, initiate the
call using the controls on the second
device. The second device will form the
link with the headset.
Answer a call: An incoming call on
glows blue, then flashes red and
blue. The Headset is now in discovery
mode and will stay that way for
30 seconds.
2. On your phone, highlight and select
"Look for Devices" or equivalent, to
activate the scan for the Headset.
3. When the phone display shows the
scan results, select "640 Plantronics".
The phone will continue to search for
the Headset.
4. When the phone display asks for
a passkey, type "0000" and press
enter.
Your Headset is now linked to your
phone.
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either device will ring through the
headset. In most cases, the ring tone
from the device will transfer through to
the headset, allowing the user to
determine which device is ringing. In
some cases, however, the headset will
apply a ring tone to the incoming call.
In either case, the user may be able to
determine which device is ringing
through the distinct ring tone.
To answer the call, press the Call
Control Button.
Answer a call on one device while
talking on the other: There is no
capability to place one call on hold
5
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