[Dundi] [RFC] GPA accountability/recourse and potential protocol addition

[Kevin P. Fleming]

Jeffrey C. Ollie wrote:

> Modify the query to include the public key of the node that issued the
> initial query.  When a node sends a positive response it could cache the
> public key to be used to authenticate the incoming IAX call.

I believe that won't solve the problem, because of caching. If a route 
to my system has been cached at other points in the network, then 
queries for that route will not ever arrive at my server. Thus, I will 
never see the public key, and can't use it for call setup authentication.