One way video - SIP doorbell

[BitterRose]

I successfully launched integration with my intercom. I tried using Video over SIP and everything works fine until I want to run this feature on a device without a camera. Is it possible to use this function only to receive video? The intercom only receives voice, so sending video is not necessary. I don't want to use the camera entity with HA because it scales poorly and have freeze frame at the beginning.