docs: public void remove(Channel channel)
      {
          synchronized (this._associatedChannels)
          {
              int index = findChannel(channel);
              if (index != -1)
              {
                  if (logger.isDebugEnabled())
                      logger.debug(
                              "CallTracker removing channel: " + this.toString() + " " + channel.getExtendedChannelName()); //$NON-NLS-1$ //$NON-NLS-2$
  
                  this._associatedChannels.remove(index);
              }
          }
  
      }