> > The transit SIP provider has every interest in hiding the 
> > IP addresses
> > of their own equipment and of the actual peers.  Otherwise, 
> > the peers
> > may make their own business agreement and circumvent the 'service'
> > being provided by the transit SIP provider -- or so the argument 
> > goes.
> 
> If the peers can circumvent the SP and make their own business 
> agreement, then perhaps the SP wasn't actually providing a service.

There continue to be transit IP providers even though the Internet has been
around for decades, and there continue to be transit PSTN providers even
though the PSTN has been around for generations.

We need an identity architecture that acknowledges transit and works with
transit.

-d

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