Cardo Systems Freecom 4 Plus - Intercom; Start; End; Add Rider 1; Start; End; Add Rider 2; Initiate 4 way intercom Conference

Intercom
Start / End / Add Rider 1
Start / End / Add Rider 2
Rider 2
x2
Rider 1
x1
x2
Rider 1 Rider 2 Rider 3You
Connects to
rider 1
Connects to
rider 3
Connects to
rider 2
Initiate 4 way intercom Conference
x1x1
x2