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Another question:
In 2.3. 3GPP usage of Offer/Answer in PRACK/200OK
pair,
I think UPDATE/200OK can do the same thing.
I am happy to find that you are chinese too. And my name is
gaoyang(in chinese), I am not sure your name is gaoyang or yanggao in
chinese.
If you are gaoyang, we have the same name in English
:)
----- Original Message -----
From: gaoyang
To: sipping@xxxxxxxx
Sent: Wednesday, February 04, 2009 11:08 PM
Subject: Support
"draft-gaoyang-sipping-session-state-criterion-00.txt", and some
questions. I am very interested in this topic(session state after
Non-successful Re-INVITE). And I have paid attention to it for a long
time.
I just hear from my friend that there is a draft on this topic
currently( I did not see any personal or WG draft on this topic
before).
I think the description in this one is effective and it
is what I am looking for! And the introduction is suit for the evolution of
media tech.
Questions:
1. How you think the method of using a new Re-INVITE
to refresh the session state?
Because this is a easy and also effective way. I once heared a
SDP attribute of "chain" which might make the question
complex.
As you paid so much attention on this topic, I think you might have thought
about "using a new Re-INVITE to refresh the session state".
2. "in the future we define a complex application/session which need
negotiation of session parameter using offer/answer in many times for one
modification"
Is this just a description in theroy or you have some research on such
media types.
Thanks.
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