Re: Fwd: I-D ACTION:draft-rosenberg-sip-target-uri-delivery-01.txt

> I think most everyone in the SIP Forum knows how the mechanism could work 
> using HI.  The question was if we wanted to solve the issue using HI for 
> the SIP-Connect profile.  I think the rationale for "no" was the feeling 
> we had on whether PBX's would actually support HI anytime soon, or whether 
> in practice we would actually be doing something different in deployment 
> to actually make calls work.  (though I can't really speak for others - I 
> could be totally wrong on that, this was just the sense I got)
>

Speaking only for myself, I thought that the obstacle for SIPconnect was 
that there was already a history-info-bis effort underway - we just weren't 
excited about requiring support for a mechanism that was being revised. It 
wasn't clear to me that we would be equally unexcited if 4244bis was 
approved for publication.

But as Hadriel says, I could also be totally wrong about that. And other 
people don't have to be shy about explaining things to me.

Thanks,

Spencer

> Personally, I look at it from a motivation perspective: who has the 
> motivation to change to make something work?  In the SIP-Connect case, the 
> Service Provider is the one selling the SIP-Trunk service, so to win the 
> deal and satisfy customers they've got more of the motivation/burden to 
> make it work.  The SP's also have a large motivation to support as many 
> IP-PBX vendors as possible.  Any changes we mandate of IP-PBX vendors will 
> reduce the pool of them that are "SIP-Connect compliant", which is not 
> good.  Especially when what we're proposing basically works *now* in 
> SIP-Trunk deployments - i.e., there's running code.  It doesn't quite work 
> that way today within the SP's domain on the wire, but as I said they have 
> the motivation (and the ability) to change their side.
>
> -hadriel
>
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