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minus-square@nonentity@sh.itjust.workslinkfedilinkEnglish17•1 month agoSMS was never intended to be available to end users. It was built as a side channel to help field techs with diagnostics. When consumer handsets started to add features, it was co-opted to provide what we know it as today.
minus-square@Aceticon@lemmy.dbzer0.comlinkfedilinkEnglish3•1 month agoThat explains why way back when I tried to read the GSM (1.x) specification out of curiosity, it turned out SMS were going via a “control channel”. Always wondered why the data for those was going via a control channel rather than some kind of data channel.
SMS was never intended to be available to end users. It was built as a side channel to help field techs with diagnostics. When consumer handsets started to add features, it was co-opted to provide what we know it as today.
That explains why way back when I tried to read the GSM (1.x) specification out of curiosity, it turned out SMS were going via a “control channel”.
Always wondered why the data for those was going via a control channel rather than some kind of data channel.