Huey Chiao HCB16 - Manual (Page 14)

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2. To proceed the triple phone conversation while you are an-
swering the interrupting call (Call 2), press the increase (+)
volume key for 2~3 seconds until you hear the “Du” sound,
the maintained Call 1 will be renewed, then the three ends
can talk together.
3. To end the triple phone conversation, press the function but-
ton, then Call 1 and Call 2 will be hanged up together.
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 1 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 1 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 1.
18. Adjusting the Volume
During a call, you may adjust the Headset’s volume.
1. To increase the volume, press the increase (+) volume key.
2. To decrease the volume, press the decrease (-) volume key.