Richard wants feedback, so here it comes.
This document is a _lot_ better than -01. Much more consistent.
Overall impressions:
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This is a telco design. Basic bell-head thinking with only some marginal sprinkling of Internet ideas. This is a document which describes how one might carry over the telco provisioning, interconnection and call routing approaches to the VoIP world.
All fine and good, but to be provocative: why is this an IETF WG document and not an ITU-T, OASIS or 3GPP paper? The role model, the actors and a most use-cases are almost straight from the PSTN playbook.
- This is way too ambitious on one hand. Defining all this in a single protocol and implementing the registry which actually does all these things is a herculean task.
Layering, folks. Layering.
Divide the problem into discrete, clearly separated sub-problems (see the speermint LUF/LRF split for a good one) and the complexity can be brought under control.
- This is way too conservative on the other hand. There is little dynamic routing. There is no integration of enterprise VoIP routing with carrier routing. There no possibility of ad-hoc peering.
Okay, some specifics:
