A A ANEES-RJD876 wrote:
> All
>
>
>
> As part of implementing RFC 3959 (early session) I am trying to
> understand what interactions this feature has with preconditions as
> described in RFC 3312. RFC just mentions and provides a reference to RFC
> 3312 but does not provide any details.
>
>
>
> I am interested to know if anyone has implemented preconditions for
> early-sessions.
I think you should first ask if anyone has implemented early-session!
I haven't heard of any. The o/a issues with early-session are somewhat
daunting. Note that in the o/a draft we elected not to discuss this
subject. However all the material in that draft should apply. But note
that it should apply *independently* for session and early-session, but
the bodies for both may appear in the same or different messages.
For instance, you could have an initial INVITE with an offer for session
but none for early-session. Then you could have a 180 that had an answer
for the session offer plus an offer for early-session, ...
> Specifically are there are any servers or endpoints that
> expect preconditions for early-session? How do you as an early-session
> requestor "Require" preconditions?
Please report back with your findings.
Thanks,
Paul
> Regards
>
> Anees
>
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