Comment by kalleboo

mmWave is way to finicky, where even a human body can block the signal.

What I saw a lot of buzz about a few years ago was 5G NR-U, where 5G was standardized to run on the ISM bands (same bands as WiFi) so you could basically set up your own 5G network just like Wi-Fi. I'm not sure what happened to that, my assumption is the 5G patents are just way too expensive to justify the hardware set it up ad hoc like that compared to WiFi. Whoever is developing DECT these days may be way more willing to lower prices since they don't have a bunch of telcos to gouge.