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A comment on HK protesters use “unblockable” messaging via a bluetooth mesh. Parent comment

Re:HK protesters use “unblockable” messaging via a bluetooth... by elmicha on Sunday September 08, 2019 @01:03AM (#20908716)
I can't find 2.4GHz as a GSM band: https://www.spectrummonitoring.com/frequencies/frequencies3...., https://m.gsmarena.com/network-bands.php3?sCountry=HONG+KONG, https://www.frequencycheck.com/countries/hong-kong
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