The supported mechanisms for handling events from ONVIF devices are:

• WS-BaseNotification – subscribing for simple events for motion alarm topics using WS-Base Notification
• Pull Point Subscription – secure subscribing via PullMessages requests for simple type events for all topics

  Complex Type events are supported on the Driver layer. For their Device Access and Functional Item representation, support can be provided upon request.

Both mechanisms use configurations and operations, with which you can handle the events accordingly.