[schlauerfox]

Yeah, I leaned from an old "Bruno Furst" memory course, but it's fairly widespread to use the same system, because you can create visual mental pictures from combinations of the sounds into a word dictionary that links to numbers. The phonetics are fairly loose and designed to be adapted as you need it. You just insert vowels as you need to make words mental pictures vivid. Once you have a 'library' it becomes a hook system.