Robert,
Thanks much for taking a stab at this.
The first thing that probably merits discussion is whether we really
actually want to move SIP to draft. Looking through the normative
dependencies, plus the amount of work it will require to agree upon and
complete the interoperability reports, seems quite daunting. At the end
of the day, do we think that exercise will improve SIP interoperability?
Make the life of an implementor easier? Not clear.
Are folks able and willing to commit the time to doing this? That
includes working out the implementation report contents, collecting
data, revising the specs, chasing down dependencies, etc. We've had this
item on our charter for a long time, yet typically make little progress
on it. Thats kind of a sign that, folks are not viewing it as something
that is pressing to address.
The biggest complaints I hear about the SIP specs are:
1. there are so many of them; its impossible to figure out what I need
and figure out which ones are definitely implemented by other folks so
that we can interoperate,
2. the specs don't line up with reality - SIP barely even mentions
B2Buas and phone numbers yet these are the more common case
3. there are lots of interop issues - many of which were raised at the
sip forum session a few meetings ago - that need to get solved
I don't hear too much of, "RFC3261 is confusing since it tells me to
implement the S/MIME thing and I don't actually need to". That would be
the main thing we'd get by moving RFC3261 to draft, I think.
So I think the first step is to really figure out, what is the PROBLEM
out there today, that we are trying to solve here. is it just, "IETF
process says we should go to draft?". If thats the sole problem, I'm not
sure its worth the effort.
Flame away...
-Jonathan R.
Robert Sparks wrote:
Please look over
http://www.ietf.org/internet-drafts/draft-sparks-sip-steps-to-draft-00.txt
as input into our discussion on advancing SIP to Draft.
Thanks,
RjS
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Jonathan D. Rosenberg, Ph.D. 499 Thornall St.
Cisco Fellow Edison, NJ 08837
Cisco, Voice Technology Group
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