Why did dial-up modems make sound in the first place?

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Everyone of an age remembers the distinctive dial-up modem sounds but why were they audible to begin with?

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8 Answers

Anonymous 0 Comments

You could turn it off and make it silent, but hearing it means you could tell the progress the connection negotiation was making and everyone from that time will be familiar when they got a bad line and it was struggling to negotiate a good speed – or was going to disconnect.

Also, if you called the wrong number and got a regular phone, you could hear them speaking on the other end so knew you’d somehow screwed up.

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