Sena Bluetooth SMH10R v4.3 User's Guide - Manual (Page 29)

English
SMH10R
29
Intercom and Two-way Radio
Smart Phone
Two-way Radio
SMH10R
GPS
Radar Detector
Sena SR10
Mobile Phone
Pairing
Multipoint
Pairing
Intercom
Pairing
Audio from
Two-way Radio
Intercom
Wired
Connection
Wired
Connection
Wired
Connection
HFP
+
A2DP
Intercom Friend
14. THREE-WAY CONFERENCE INTERCOM
14.1 Start Three-way Intercom
You (A) can have a three-way conference intercom with two other
SMH10R friends (B & C) by establishing two intercom connections
at the same time. While a three-way conference intercom is in
progress, the mobile phone connection of all three participants
would be temporarily disconnected, but as soon as the conference
intercom terminates or one of the participants leaves the intercom,
all mobile phones would be automatically reconnected. During the
conference intercom, if you have an incoming mobile phone call,
terminate the conference intercom to automatically reconnect the
mobile phone and receive the call.