Traditional regulatory authority has been moderately effective at getting changes made already, but being too aggressive risks network fragmentation. Even the U

Traditional regulatory authority has been moderately effective at getting changes made already, but being too aggressive risks network fragmentation. Even the USA is just one participant in the NANP, never mind the global telephony network. We also don't live in the days of AT&T having a monopoly anymore. Any change requires cooperation between different vendors, and ensuring a smooth rollout means allowing for a slow rollout. This is the telephone system after all, not some startup's barely-used product. Plus the government has multiple arms and some of them don't want the changes to be made or not too quickly (surveillance, stings, etc.).