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Remembers me of this funny anekdote: there were a whole lot of 56k6 modems out there that had this bug, where they would parse the +++ATH0 (hangup) command, over plain text connections. So when I sent that into a huge IRC channel.. You could see over a hundred connections all being quit; with reason 'EOF from client.'

Many rejoined with stuff like #Appears as ANNA. From MS Comic Chat. Good old days!

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It wasn't quite like that (at least in the usual cases). You had to do something that would get the other end to send it back out again, such as putting it in a ping payload.

The reason for the "bug", if I'm remembering correctly, is that Hayes or US Robotics or some company like that had a patent on the guard times that were supposed to surround the +++.

Hayes had the patent.

They even had a "tick bomb" advertising campaign about this problem.

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