Subject: AW: [Ecrit] Emergency Address Directory section (<draft-schulzrinne-ecrit-requirements-01.txt>)

From: "Tschofenig, Hannes" <[email-masked]>
Date: Tue, 9 Aug 2005 15:44:24 +0200

hi henning, 

> Tschofenig, Hannes wrote:
> > hi all, 
> 
> >    D5.  Call setup latency: The directory lookup SHOULD minimize any
> >       added delay to the call setup.
> > 
> > # i suggest not to talk about call setup latency. we are 
> working on a
> > mapping protocol. how can we control things that are 
> outside the  scope
> > of our work? 
> > # i understand if we have a requirement like:
> > 
> 
> It talks about *adding* delay to call setup, which is a valid 
> concern. 
> The caller doesn't care about the mapping delay, after all, just the 
> total. Maybe rephrase as

it is true that the emergency caller cares about the total delay. 
i just want to be realistic about what we can actually do and how we
should phrase our requirements. 

> 
> D5. Minimal additional delay: The directory lookup SHOULD 
> cause minimal 
> additional delay at call-setup time.
> 
> [Delay at other times, such as during address verification, is not as 
> important.]

the suggested rewording might already be sufficient. 

ciao
hannes

> Henning

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