All the more reason to have the IETF do it and leave AT&T out of it.
Any modern system is going to use IP as a transport. Even the traditional phone network is VoIP under the hood in modern networks. The replacement system should be kept as far from the influence of the last mile providers as possible.
The thing that definitely shouldn't happen is that you get your phone number from them. Let it be "user@host" like email or otherwise assigned via DNS.
Any modern system is going to use IP as a transport. Even the traditional phone network is VoIP under the hood in modern networks. The replacement system should be kept as far from the influence of the last mile providers as possible.
The thing that definitely shouldn't happen is that you get your phone number from them. Let it be "user@host" like email or otherwise assigned via DNS.