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Re: [Ecrit] PhoneBCP



All

The statement "The underlying protocols can also be used to support other models in which parts of the process are delegated to the Communications Service Provider" seems applicable to the 3GPP/3GPP2 solution - e.g. because it does not say that all the protocols must be used, nor does it say that other protocols must not be used, but is consistent with a selection of some subset. (That is also applicable to the preferred Ecrit solution which allows choice of LCP in the network.) 

So I support the current applicability statement and, based on the very long discussion that it took to get to that, foresee a possibly equally long discussion ahead if this issue has to be restarted.

Kind Regards

Stephen
-----Original Message-----
From: ecrit-bounces at ietf.org [mailto:ecrit-bounces at ietf.org] On Behalf Of Richard Barnes
Sent: Monday, April 27, 2009 9:42 PM
To: Gellens, Randall
Cc: ECRIT
Subject: Re: [Ecrit] PhoneBCP

Ok, we clearly need to revise the text, since that's a pretty serious 
misunderstanding.  The text doesn't constrain the use of the protocols 
at all -- in fact it says "they underlying protocols can also be used to 
support other models in which parts of the process are delegated to the 
Communications Service Provider".  For example, in the 3GPP model, an 
E-CSCF could do everything on behalf of the endpoint, but could still 
use SIP for calling, LoST for PSAP URI discovery, and HELD for location 
retreival.

The point of the current text is just that those scenarios aren't 
discussed in this draft, not that the overall model doesn't apply to 
those scenarios.

--Richard


Randall Gellens wrote:
> I hum for the text, which doesn't constrain the use of the protocols, 
> but merely describes the assumptions under which it works.  As such, it 
> is useful and helpful.  Even for those who think the assumptions are 
> obvious, it does no harm to state them.
> 
> We had a lot of debate on this in SFO, and the text in this version was 
> discussed on the mailing list in the days during and following the meeting.
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