Christer Holmberg wrote:
Hi,
The point is that the registered contact could be an AOR of another
user.
Ok, now I understand. Yes, that is an interesting case, eventhough I
guess it's really not the correct usage of the registration procedure.
Any contact could be an AOR, not a final destination, in that any UA
could also decide to become a proxy and send the call somewhere else.
Such a determination might be made on a call-by-call basis.
In such case, two possibilities apply:
1) the transformation is a reroute, in that the identity of the target
is not being changed, just the location at which that target is being
sought.
2) The transformation is a retarget, in that the identity of the target
is being sought after the transformation is different than the identity
being sought before the transformation.
Of course, it is possible for a proxy making such a transformation to
not know the identity of the target. In such a case, it is impossible
for the proxy to inform the UAC of the transformation and thereby avoid
an unanticipated respondent scenario. This is the world we live in for
ALL proxy operations today, and it has its drawbacks.
--
Dean
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