Thursday, 18 October 2018

Fable: The Whistle

There was once a man who discovered that when the kids’ whistle given away with boxes of cereal was blown into a telephone it mimicked the tones that caused the telephone exchange to release a long distance phone line. This made it possible to make free long distance calls. The man published his findings and ...

This story continues at Fable: The Whistle

Or just read more coverage at Electronics Weekly



from Electronics Weekly https://www.electronicsweekly.com/blogs/mannerisms/fable/fable-the-whistle-2018-10/

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