Four-Way Conference Intercom; Start Four-Way Intercom; End Four-Way Intercom - Sena SPH10H User Manual

However, you still have the intercom connection
with your second intercom friend (C).
Jog Dial Operation
Press for 1"
Single tap
Double tap
End Three-way Intercom
Result
Disconnect (B) & (C)
Disconnect (B)
Disconnect (C)

15. FOUR-WAY CONFERENCE INTERCOM

15.1 Start Four-way Intercom

You can have four-way conference intercom with three
other SPH10H users by adding one more intercom
participant to the three-way intercom. While you are
having three-way intercom as above in section 14.1, 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).
You
(A)
First Friend Second Friend
(B)

15.2 End Four-way Intercom

As same in the case of three-way intercom, you
can completely get out of the four-way conference
SPH10H
New Participant
(D)
= Intercom Friend of (C)
(C)
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