@FuturisticRobert in fact @osmocom has proudly tested their #GSM setups at multiple #C3 events like #ChaosCommunicationCongress and #CCCamp...

• Tho they obviously have to jump through all the #SpectrumRegulation hurdles not just with @BNetzA but also at least one licensed #MNO and kindly ask them if they could use part of their spectrum for such a test network.

I'm shure @LaF0rge has more details re: said hoops...

• But yeah, on many events one could get a #SIM and recently even #eSIM|s that work onsite. Which is good because #GSM is way more scalable than #DECT and also having a big number of real users testing a cleanroom implementation of GSM is kinda important...