Use ONVIF Client Test Tool simulator for Profile T

I am trying to do the ONVIF Client certification. For HTTPS streaming, I need to use the profile T simulator that is included with the Client Test Tool. As I understand it, the simulator should behave like an ONVIF camera (or some functionalities of a camera), but it doesn't. I can't even use the command getStreamUri(), because the media service doesn't work. Has anyone had a similar experience? Or is there another way to use the simulator? CTT version is 22.06 rev 4624