I do indeed mean SMS, but I was focusing more on the air interface. There, SMS d... | Hacker News

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		lxgr on June 11, 2024 \| parent \| context \| favorite \| on: British duo arrested for SMS phishing via homemade... I do indeed mean SMS, but I was focusing more on the air interface. There, SMS definitely consume resources in the same way that calls do (although of course at a very different rate: SDCCH uses 0.8 kbit/s, as opposed to 13 kbps for full rate voice/CSD traffic channels).

aidenn0 on June 11, 2024 [–]

But the signaling channels weren't used to send SMS before SMS existed (which the original statement of "unused" implied).

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