Comment on Phonebooks

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jqubed@lemmy.world ⁨1⁩ ⁨month⁩ ago

It did take forever. Rotary phones work by sending clicks down the phone line that automation equipment listens to. If clicks came too fast the equipment wouldn’t understand it correctly. This was one of the big improvements the touch tone phone brought: it was much faster to dial. Instead of clicks each button generated a tone at a specific frequency and the automated switching equipment could interpret it much faster. At least some of the early phones had a switch to make them send clicks instead, in case the local phone company didn’t support tones yet.

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