update: it's the destination ringback tone. thanks everyone.
question for telephony phreaks:
when you dialed an international phone number in the 1980s/90s, after it was done going through all of the routing clicks and switching noises, did your phone receiver ring with the originating ringing tone, or the destination ringing tone?
Listen to the sounds of the 1970s Bell phone network, watch a '70s Bell Western Electric 1A2 Key Telephone System in operation, phreak the past network, and get help from That '70s' Operator, a living creature.
Located in Berlin-Friedrichshain we will provide a 24h live video stream of a '70s 1A2 Key KSU in operation.
I'll never be asked to contribute to his #obituary but he was the best #Social#Engineer I ever knew and I think he'd have been pleased to hear that -- So if he faked his death just to get that out of me, you are still a bastard, Mr Mitnick!
I don't know if younger people know him now, but in his prime he was the most famous hacker in the world, not only in the modern widely-accepted sense (someone who breaks into computers for whatever reason) but also in the original sense.