Eric Rescorla wrote:
At Fri, 27 Jul 2007 09:35:12 -0500,
Francois Audet wrote:
The intent is to be UNDISTINGUISHABLE.
We do NOT want the equipment to automatically downgrade. We want
the user to make the decision in a concious way.
Furthermore, we want to emphasise that the SIP and SIPS are
different addresses and are not interchangeable.
Rohan Mahy, Jon Peterson, Eric Rescorla,
Since you were the main people advocating this change, can
you make clear on the list what the rationale is.
Right. So, I want to avoid automatic downgrade. I think that
at minimum that means that we should avoid using a return
code ordinary associated with automatic retry. Better yet
would be to use a hard failure return code and then a textual
error message...
Do people seriously believe that any amount of protestation from the IETF
is going to prevent implementors from downgrading? If the receiver(s) really
don't want the SIP method, they don't have to accept them. If they do,
then no
amount of hand wringing MUST NOT's is going to prevent the inevitable.
The only thing this kind of hand wringing is likely to produce is more
incompatibility between the puritans and the sinners.
Mike
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