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I built PBX software as VoIP took over. Parallelizing virtual telephony timing with CPU virtualization was a fun and challenging project. It is amazing to me h
by gogopuppygogo 6y ago
I built PBX software as VoIP took over. Parallelizing virtual telephony timing with CPU virtualization was a fun and challenging project.
It is amazing to me how few people understand the transition from phreaking to hacking culture...
2600 at least should be taught in every CS degree program as a footnote of the industry...
- rootsudo 6y agoFor the tone: No one cares about blue boxing, beige boxing or the old tales of cap'n crunch unless you bring up how he was banned/potential pedo. For the culture: 2600 magazines are also considered contraband in many parts of the world, and also stopped distribution, turns out if many fans of your work are pirates, it may be hard to have circulation.
- EvanAnderson 6y agoThe lesson about in-band vs. out-of-band signaling is a good one, even if the specifics of blue boxing aren't discussed. The evolution of panel-pulsing to MF to SS7 is interesting, and knowing some of that history provides context to why some things are the way they are today in voice telephony.