The number of ITU standards is HUGE and some of them are good, and some of them are even still in use. Given the volume, they are necessarily quite heterogeneou

The number of ITU standards is HUGE and some of them are good, and some of them are even still in use. Given the volume, they are necessarily quite heterogeneous and designed by distinct groups of people. Likewise for the IETF RFCs. Both attempt to address lots of layers of the stack, but I'd still consider IETF as more of an high level thing, and ITU more low level. At least where they succeeded, if only for a time. And given the development history, this is logical.