I'm not saying the draft is right or wrong with regards to keep alive.  
We have not had any new information about requirements for keep alive  
than what we have 2 or more years ago. But, every single meeting we  
seem to change the keep alive mechanism. In many meetings we achieved  
strong consensus on how it should work, then a very few people on the  
list have argued for something different and we have changed it. We  
will never finish if we keep doing this.

Cullen <with my individual contributor hat on>


On Mar 9, 2008, at 11:49 AM, Xavier Marjou wrote:

> It would be great if the only thing to do could be to add such a
> precision. This would encourage the incremental deployment of some
> outbound draft features even if the registrar does not support
> outbound.
>
> Xavier
>
>
>
> On Sun, Mar 9, 2008 at 2:29 PM, Christer Holmberg
> <[EMAIL PROTECTED]> wrote:
> >
> >  Hi,
> >
> >
> >  >>Again, that is what I have proposed as an alternative. I have  
> said
> >  >>that the UA should be allowed, when it sees the "ob"
> >  >>parameter in the Path, to use keep-alive even if the registrar  
> does
> >  not
> >  >>support outbound.
> >  >
> >  >What's there to stop it from doing just that?
> >
> >  Nothing, as far as I know.
> >
> >  I am only asking for some clarification text.
> >
> >  The draft currently says:
> >
> >  "The UAC examines successful registration responses for the  
> presence
> >  of an 'outbound' option-tag in a Require header field value.
> >  Presence of this option-tag indicates that the registrar is  
> compliant
> >  with this specification, and that any edge proxies which needed to
> >  participate are also compliant."
> >
> >  So, I think it would be good to add something like:
> >
> >  "If the registrar did not support outbound, but there was a path  
> header
> >  with the edge proxy URI
> >  present in the 200 OK response to the REGISTER message, the UAC may
> >  check
> >  whether the URI-parametyer "ob" is included in the URI. If so,  
> then the
> >  UAC knows that
> >  outbound keepalives can be used even though the registrar does not
> >  support outbound."
> >
> >  So, it's just a clarification...
> >
> >  Regards,
> >
> >  Christer
> >
> >
> > _______________________________________________
> >  Sip mailing list  https://www.ietf.org/mailman/listinfo/sip
> >  This list is for NEW development of the core SIP Protocol
> >  Use [EMAIL PROTECTED] for questions on current sip
> >  Use [EMAIL PROTECTED] for new developments on the application of sip
> >

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