code: public static void removeTimerService(Context envCtx, String appName, TimerService timerService) {
  		if(envCtx != null) {
  			try {
  				javax.naming.Context sipContext = (javax.naming.Context)envCtx.lookup(SIP_SUBCONTEXT + "/" + appName);
  				sipContext.unbind(TIMER_SERVICE_JNDI_NAME);
  			} catch (NamingException e) {
  				logger.error(sm.getString("naming.unbindFailed", e));
  			}
  		}
  	}
docs: Removes the Timer Service binding from the jndi mapping
  @param appName the application name subcontext
  @param timerService the Timer Service to remove