Hard to explain but not possible. Think of a house on top of the mountain and a gate that is > 0.5 miles away, in a valley … with 5000 100ft trees between,
They put in cellular that is > 50MB that I get at the gate. I have Starlink at the house.
HA in both locations now and using remote HA and other webhooks, I have it all working perfect. I can open the gate at house by seeing the Reolink feed, speak to Alexa, which goes Alexa->Amazon Cloud->HA Home->HA Remote->Gate and it opens in about one second.
I can stream the camera through Reolink or HA at the gate.
Better I put in notification on Gate HA which sends notifications to phones and the notification has the actions to open the camera stream or even just open the gate.