code: public void start() {
      	if(logger.isDebugEnabled()) {
              logger.debug("start");
          }
          started.set(true);
          if(logger.isDebugEnabled()) {
              logger.debug("Started proxy timer service "+ this);
          }
      }
docs: /* (non-Javadoc)
  @see org.mobicents.servlet.sip.core.timers.ProxyTimerService#start()