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   They were in charge of transporting telegraphic traffic, since, at that time, voice communications did not yet exist. They were in charge of transporting telegraphic traffic, since, at that time, voice communications did not yet exist.
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   In the 19th sentury there was an under water cable that it was called el canal de la mancha that it crossed between france and england for the phones In the 19th sentury there was an under water cable that it was called el canal de la mancha that it crossed between france and england for the phones
