Webhook Subscriptions for RingCentral Video Calls

Hi, 

I reviewed the documentation but couldn’t find any references to webhook subscriptions for Video Calls. We have a need to download RC video recordings and ideally our platform is notified via webhook. 
We currently use subscriptions for phone calls and that works well.

Does anyone know if it’s supported at all? I know the Video APIs are in beta so I’m not sure if the docs are somewhere else or if it’s just not supported.

Thanks!