public void setFmucOutboundMode( FMUCMode fmucOutboundMode ) {
        this.fmucOutboundMode = fmucOutboundMode;
    }
Sets the 'mode' that describes the FMUC configuration is captured in the supplied object, which is
either master-master or master-slave.

@param fmucOutboundMode FMUC mode applied to outbound FMUC federation attempts.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MUCRoom.java