Sometimes you stumble on something so unusual, that most people would simply gloss right over it. I love this article.
As a blind boy in the 1950s, Josef Engressia accidentally discovered he could place free long-distance calls by whistling into a phone at a frequency of exactly 2600 Hz. The adult Engressia became the first and greatest of the “phone phreaks,” legendary hackers of pre-digital phone systems. Engressia loved phones the way some boys love trains — they were the conduit to the perfect childhood he never [...]
Tags: Phone Phreak, Engressia
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