The UHF Bridge is interesting… I wonder if that’s a thing Norway lets you do? I’m pretty sure in the US you need a ham license to patch phone over radio like that.
You are correct that in the US, most personal/unlicensed (Part 95) radio services explicitly prohibit phone patch via FCC rule 95.349 [1]
[1] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D...
In the US the FCC will go after you for running half a watt over your power limit. In the UK, Ofcom literally cannot be paid to take an interest on what happens on amateur or ISM bands, and will only get involved if you're making a nuisance of yourself on commercially licensed frequencies.
But it might be using https://en.wikipedia.org/wiki/PMR446 which is open and licence exempt (though “base-stations” are prohibited).