Obligatory reference to За миллиард лет до конца света: https://en.wikipedia.org/wiki/Definitely_Maybe_(novel) https://en.wikipedia.org/wiki/Definitely_Maybe_(n

Obligatory reference to За миллиард лет до конца света: https://en.wikipedia.org/wiki/Definitely_Maybe_(novel) https://en.wikipedia.org/wiki/Definitely_Maybe_(novel) My friend developed first then Soviet software-controlled modem. He said they experienced more line cut-offs (hangups by telephone line operator) during testing next to the end of project (which was a success). He explained that their modem had crude analog adapter and caused a lot of noise and/or interference with the other phone company machinery. He said he also suspected KGB who they may thought that this is new voice scrambling device. Basically, the Resistance is real, but can be explained by some real factors, just like in the novel above.