This doesn’t work for everyone but this is what I have.
I use the open source app Silence. https://www.f-droid.org/en/packages/me.lucky.silence/
If someone is not in your contacts to just sends it stright to voice mail. I would love a self hosted option so I could set it up for my family as this dosnt work for most people.
If they have a YouTube version I use https://www.podtube.me/ to make an RSS feed and put it in my Podcast player of choice.