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Note:
● To activate this function, you must make sure the assigned tele-
communications agent supports this service.
● To activate this function, please refer to the instructions of your
mobile phones manual to make sure your phone program sup-
ports this function.
● When the triple phone conversation is on board, it can not return
to the mode of having only Call or Call 2.
● When the triple phone conversation has not been activated, you
can press the decrease (-) volume key for 2~3 seconds to easily
transfer the calls between Call and Call 2.
● If Call 1 is maintained and Call 2 is on line, quickly press the
function button to end Call 2 and renew Call .
17. Adjusting the Volume
During a call, you may adjust the Headset's volume.
. To increase the volume, press the increase (+) volume key.
2. To decrease the volume, press the decrease (-) volume key.
Note:
● You will hear the "Du Du" sound while adjusting the volume up
to the loudest or lowest.
18. Safety instruction
. Read the Headset manual carefully and use the headset cor-
rectly by following the instructions.
2
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