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Cake day: July 11th, 2023

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  • SS7 is a signaling protocol. It does specific things between exchanges. For example, you make a long distance call…before you input the last four numbers, SS7 has signaled the end office that a call is to be setup. As the last four numbers are dialed, the connection is interrogated and if free completes the connection, hello. But if it’s busy, SS7 signals back to your office to activate its tone generator to produce a busy signal. Magic. Very little resources are used. Knew a guy who was very good in SS7 and he claimed he could do some shit.