Obviously Kootol has never seen any old hacker movies like the "The Cuckoo's Egg." or the like, For that matter. what about semaphore on military ships or the telegraph from the 1800's, some stations actual had two telegraphs just for that purpose. Arpanet I think used to do the same thing also.
https://secure.wikimedia.org/wikipedia/en/wiki/ARPANET
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Obviously Kootol has never seen any old hacker movies like the "The Cuckoo's Egg." or the like, For that matter. what about semaphore on military ships or the telegraph from the 1800's, some stations actual had two telegraphs just for that purpose. Arpanet I think used to do the same thing also. https://secure.wikimedia.org/wikipedia/en/wiki/ARPANET