Against some better judgement, I did direct burial. I did consider walkie talkies, but heard doesn’t work well in a metal barn (I confirmed I basically have zero cell reception). I could look at adding the antenna though, thats not a bad idea.

That’s fair, and yeah in hindsight would have been great, though tough to retrofit. Maybe I’ll look into running another line for something like that. Thanks!

Well in my scenario, both locations would be fixed, so I’m not really concerned about finding locations.

Oh I’m sure I’m overcomplicating it. We had some landline phones growing up that could also ping and “intercom” but those were all connected to phone jacks with an active phone service, ao I figured I couldn’t really do that. How is some like the one you mentioned wired? How does it talk to the the other one? Forgive my ignorance.

And to note, I definitely do not need high quality, just something local that is functional.

I could I guess? What would that look like? Just mic and speakers wired over Ethernet and just always on but with a hardware switch or something? Or connected to something like a Raspberry pi running some software to talk with the other pi?

That looks pretty good. Looks like a lot of information to parse through, reading up now, thanks!