My understanding is consistent with what dialogusage says - INFO is
specific to the INVITE dialog usage. But off the top of my head I can't
recall where that is specified.
Paul
Nina Garaca wrote:
Hi all,
I have read rfc2976 - The SIP INFO Method, but I haven't really
understood that INFO message belongs only to INVITE dialog usage, which
however draft-ietf-sipping-dialogusage-04 claims in its part 5.3:
5.3. Matching requests to usages
For many mid-dialog requests, identifying the usage they belong to is
obvious. A dialog can have at most one invite usage, so any INVITE,
UPDATE, PRACK, ACK, CANCEL, BYE, or INFO requests belong to it.
So my, question is:
Can INFO message belong to other usages, besides INVITE, such are
SUBSCRIBE or REFER?
Thanks in advance,
Nina.
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