Dear Vijay,
Thanks for your reply/answer.
>
> Responses *always* follow the Via list. What you mention above is the From
> being used to initiate a subsequent request, and only in the absence of
> (a) the Contact (the bis makes Contact mandatory, so all requests will have
> a Contact, it was optional in the RFC, if I recall correctly) or, (b) a
> Route list has not been created.
>
Since rfc2543bis makes Contact mandatory in INVITE request (if I'm
not wrong, it is optional in other requests), does it mean that the 'From'
field is never used anymore for subsequent requests from callee to caller?
Do you , by any chance know, when rfc2543bis is going to be stable,
i.e becoming a RFC?
Thanks
Regards,
Victor
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