I commonly Signal call my partner when we are at opposite ends of the house. I can see something like this being useful to prevent using some remote Internet server to facilitate a very local call.
I wonder if there's a home lab / self hosted solution for this.
You can do a surprising amount with a low throughput connection though. I've been playing with Google's Lyra V2 codec - it chews up a fair bit of CPU, but 3.2kbps over a CodedPhy link sounds fine.
I wonder if there's a home lab / self hosted solution for this.