This has come up in years past; how can you tell if the ac is still one when you are away from your RV.
I’m not sure when Apple added it; (I think the last release) you didn’t used to be able to do it.
You can go into Settings, Accessibility, Call audio routing, then turn on speaker and set auto answer time.
Now when you call that number, it will auto answer into hands free mode.
Leave a tv on or set it where it can hear the ac fan to let you know the power is still on.
Not perfect, but better than nothing.
Also handy for driving.
My Kharma ran over my Dogma.