Re: Trying to summarize discussion on SIMPLE interop

Hi Olle,

First, thanks for making some noise :-)

On Oct 24, 2012, at 7:00 PM, Olle E. Johansson wrote:

> Simple friends ;-)
> 
> I am surprised to see very few advocates for the current set of RFCs. It seems like everyone on this list
> agrees that SIMPLE failed to deliver interoperability in the current form, that the specifications leave
> too much to implementations and that there are undefined areas that needs to be defined in an
> IETF document (which may currently be specified elsewhere).
> 
> I see that the discussions diverge on a short-term and a long term plan.
> 
> The short-term plan is to focus on the existing set of recommendations in RFCs and try to find out
> which implementation guidelines and maybe extra set of documents that are needed to get a 
> baseline interoperability in handling of a simple buddy list, presence involving multiple devices
> and presence authorization. There seems to be an agreement that MSRP based chat works.
> 
> The long-term plan is to spend time on developing something that would be much easier to implement,
> not require 18 (or more) subscriptions with states and be easier to interoperate with XMPP.
> 
> I personally would like to focus on the short term plan for now. I want agreement on a 
> set of implementation guidelines so we can get the available softphones (and hardphones
> that implement SIMPLE) to interoperate using standard open source servers like OpenSIPS,
> OpenXCAP and Kamailio (and possibly others). If it's not possible, well, then at least we tried to 
> fix it and we can divert attention on either XMPP or developing a SIMPLE--.
> 

I agree. We (kind of) took this approach and managed to build something that works, so it's doable. It would be great if we could put together some recommendations / specifications for these items you highlighted: a buddy list, multi-device presence and authorization.

> If there's time in the dispatch meeting for an open discussion, I hope I can participate remotely.
> 

Count me in!

> It would be great if we by combining our efforts can get both working standards and interoperable running code,
> in true IETF spirit.
> 
> Thanks to everyone for your involvement in this discussion. Let's keep it alive and make progress together.
> 

Cheers,

--
Saúl Ibarra Corretgé
AG Projects