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SIGSALY
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Cryptography and encryption
Telecommunications
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SIGSALY - Wikipedia
https://en.wikipedia.org/wiki/SIGSALYhttps:/en.wikipedia.org/wiki/SIGSALY
SIGSALY
The Secret History of the Vocoder - YouTube
https://www.youtube.com/watch?v=OvR4qK0B--w
SIGSALY
The secret AT&T project that changed the world – it’s all in the family | AT&T - YouTube
https://www.youtube.com/watch?v=A5hph-GHLGs
Cryptography and encryption
SIGSALY