Google Translate "Again about SQL " -- route costs lookup for telephony operator
http://translate.google.com/translate?u=http%3A%2F%2Fplakhov.livejournal.com%2F144249.html%3Fthread%3D2563193%23t2563193&sl=ru&tl=en&hl=&ie=UTF-8 Google translate of 2 posts in Russian section of LJ about route costs look up problem commonly faced by telephony operators