This is working as intended.
Given a p2p call, an user A and an user B:
The call starts as audio only, the user A adds video:
- User B can denySendVideo, but this only disables B sending video to user A. It doesn't not prevent the
escalation of the call to video.
- The call escalates to video. It's not longer audio call.
- As the petition to add video was successfull, servers returns 200 status code.
This is why you don't get a denial reason. You are not denying the call from escalating to video, you are just
preventing your client to send video to the other user.
I hope this helps you. Rodrigo.