No, the fundamental idea is to give everyone a personal and unique giant bank of phone numbers. The rest is implementation detail. This idea would be totally unrelated to the current telephone number space -- everyone would still have a legacy number [ed: or other unique id that the phone system can interoperate with] for text messaging, but the voice number that I'm talking about would be on the order of kilobits, and use a seed and hash to ensure (reasonable probability of) non-collision. That's why I never suggest simply "telling someone the number." Also, most people would probably have 500 or so outstanding valid numbers, tops.

As to how I would implement it on top of the current system, I suppose it would be a matter of negotiating link parameters with the telco and shunting into some "enhanced dialing" mode.