Hisham Khartabil wrote:
What's fully processed? Don't confuse the offer/answer when the 1xx
PRACK. The PRACK is to acknowledge that a 1xx has been received. If
the PRACK carries SDP, then let your offer/answer state machine handle
it. So:
- If the UAC sent a offer, it needs an answer regardless which message
carries that answer
- If the UAC sent an answer, then if needs to send an answer if it
received an offer. It can carry that answer in any message it is
sending back.
Its not true that it can send an answer in any message it is sending back.
I started out with that belief many years ago, at the beginning of the
process that led to the o/a draft. After *much* discussion and reading
of the tea leaves in RFCs, it was concluded (for good reason) that
offers and answers can only be carried in certain patterns of messages.
But that is off the subject of this current thread.
Thanks,
Paul
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