Jiri Kuthan writes:
In case people do keep asking: it is really so, and
receivers
MUST be able to deal with ACK branch different from branch
in INVITE.
that is correct.
>The bug report is invalid, ignore it. branch=0 in
ACK to a 200
>is perfectly valid according to RFC3261.
but i'm not sure that branch=0 would be valid according to rfc3261,
which says (section 8.1.1):
The branch parameter value MUST be unique across space and time for all
requests sent by the UA.
0 thus hardly qualifies. also
The branch ID inserted by an element compliant with this specification
MUST always begin with the characters z9hG4bK.
-- juha