I send SubscribeCOVPropertyRequest with VTS program. In BACnet4J I see this request in

localDevice.getEventHandler().addListener(new DeviceEventListener()

requestReceived (not in covNotificationReceived). VTS program returns information about the error as if BACnet4J was unable to handle this query. I do not know how to activate the option of sending values ​​to the device that requested it.

Filters queries to get subscriptions only from another device

if (service.getChoiceId() == 28)

I don't really see the possibility of extracting information about a point that is to send a value to a device in a net, where this information might be?

How to accept subscriptions of another device?