2
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.
● If Call 1 is maintained and Call 2 is on line, quickly press the
function button to end Call 2 and renew Call .
18. Adjusting the Volume
During a call, you may adjust the Headset’s volume.
