code: @Override
  	public void subscriptionTerminated(XDMClientChildSbbLocalObject child,
  			String notifier, TerminationReason reason) {
  		tracer.info("subscription terminated, reason = " + reason);
  		getXDMClientChildSbbChildRelation().get(ChildRelationExt.DEFAULT_CHILD_NAME).remove();
  	}
docs: /*
  (non-Javadoc)
  
  @see
  XDMClientParent#subscriptionTerminated
  (XDMClientChildSbbLocalObject,
  java.net.URI, org.mobicents.slee.enabler.sip.TerminationReason)