Re: Wrong tree
AC: It sounds more like something for the ITU to scratch their heads over but given the scale of the problem that might be as far as they get. How would *you* fix this without breaking the PSTN?
All very interesting technical points. Personally I'd give subscribers the choice between rejecting dubious calls with fine-grained controls, with the caveat that they may be barring legit traffic at their own risk, or continuing with the broken-arsed mess in case they need the old "features."
Of course, none of this disproves my original assertion that it is the broken-arsed mess that is the core of the problem and the problem will remain unless someone with a little more interoperability-fu than I comes up with a solution. If anything, it has provided proof of the issue.