I also pay high attention to the topic of "rollback of re-Invite".
As lots of service is implemented on the network using SIP, and different ways
may be carried out by different corporations, it's necessary to define a complete
and clear method to solve the failure when the unsuccessful re-Invite happens.
And the problems "Commit any session parameters that have been sucessfully changed"
metioned in "draft-gaoyang-sipping-session-state-analysis-01.txt" need further discuss,
I think.
Eric.wang
Regards!
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