src/net/java/sip/communicator/service/protocol/media/AbstractOperationSetTelephonyConferencing.java
/**
     * Notifies this <tt>CallChangeListener</tt> that a specific <tt>Call</tt>
     * has changed its state. Does nothing.
     *
     * @param event a <tt>CallChangeEvent</tt> which specifies the <tt>Call</tt>
     * which has changed its state, the very state which has been changed and
     * the values of the state before and after the change
     */
Notifies this CallChangeListener that a specific Call
has changed its state. Does nothing.

@param event a CallChangeEvent which specifies the Call
which has changed its state, the very state which has been changed and
the values of the state before and after the change
Notifies this CallChangeListener that a specific Call has changed its state . Does nothing . @param event a CallChangeEvent which specifies the Call which has changed its state the very state which has been changed and the values of the state before and after the change
public void callStateChanged(CallChangeEvent event)
    {
        if (CallChangeEvent.CALL_PARTICIPANTS_CHANGE
                .equals(event.getPropertyName()))
        {
            notifyAll(event.getSourceCall());
        }
    }
public void callStateChanged ( CallChangeEvent event ) { if ( CallChangeEvent . CALL_PARTICIPANTS_CHANGE . equals ( event . getPropertyName ( ) ) ) { notifyAll ( event . getSourceCall ( ) ) ; } }
Notifies this <tt>CallChangeListener</tt> that a specific <tt>Call</tt>
 has changed its state.
Notifies this <tt > CallChangeListener< / tt > that a specific <tt > Call< / tt > has changed its state .