SENA Bluetooth Mic Supplies Kit - Manual (Page 40)

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by tapping the Center Button once. To end
the mobile phone call first and maintain the
intercom conversation, press the Center Button
for 2 seconds, or wait for the person on the
mobile phone line to end the call.
Start
Tap the Center Button while
having a mobile phone call
End intercom
first
Tap the Center Button
End phone call
first
Press the Center Button for 2“
or
Wait for the called person to end
the call
Start & End Three-way Conference Phone Call
9.5 Four-way Conference Intercom
9.5.1 Start Four-way Intercom
You can have four-way conference intercom
with three other Bluetooth Mic users by adding
one more intercom participant to the three-
way intercom. While you are having three-
way intercom as above in section 9.4.1, a new
participant (D), who is an intercom friend
of your intercom friend (C), may join the
conference intercom by making an intercom
call to your intercom friend (C). Please note
that in this case, the new participant (D) is an
intercom friend of (C), not of you (A).