Huey Chiao HCB03 - Manual (Page 14)

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17. Triple phone conversation
. While you are answering Call  from your Headset and hav-
ing the interrupting call, you will hear the notifying “Du Du”
sound. Press the decrease (-) volume key for 2~3 seconds
until you hear the “Du” sound, Call 1 will be maintained and
the interrupting call (Call 2) will be answered automatically.
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  will be renewed, then the three ends
can talk together.
3. To end the triple phone conversation, press the function but-
ton, then Call  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  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.