Many of us are amateur radio operators, which is basically walkie talkies. And furthermore, when we're all having a group discussing, it very much follows your

Many of us are amateur radio operators, which is basically walkie talkies. And furthermore, when we're all having a group discussing, it very much follows your last point: https://en.wikipedia.org/wiki/Amateur_radio_net https://en.wikipedia.org/wiki/Amateur_radio_net