We need for phones something like what we did for email when the spam first started getting out of control -- blacklists for providers that don't have and reaso

We need for phones something like what we did for email when the spam first started getting out of control -- blacklists for providers that don't have and reasonably enforce AUPs. It may be that the US courts have no jurisdiction over a VOIP provider in Kazakhstan, but there's no reason my phone provider can't simply refuse to route their calls.