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AW: [Ecrit] High-Level Requirements section (<draft-schulzrinne-ecrit-requirements-01.txt>)



hi ted, 

what about the following text:



> -----Ursprüngliche Nachricht-----
> Von: Ted Hardie [mailto:hardie at qualcomm.com] 
> Gesendet: Dienstag, 9. August 2005 21:59
> An: Tschofenig, Hannes; ecrit at ietf.org
> Betreff: Re: [Ecrit] High-Level Requirements section 
> (<draft-schulzrinne-ecrit-requirements-01.txt>)
> 
> 
> At 11:19 AM +0200 8/9/05, Tschofenig, Hannes wrote:
> >   R6.  Incremental Deployment The output of the ECRIT 
> mapping protocol
> >      will be one or more URIs that can be used as the target of an
> >      emergency communication.  These must be usable by an 
> appropriately
> >      capable device even if that device has no knowledge of 
> the mapping
> >      protocol.  As an example, if the mapping protocol returns a SIP
> >      URI any SIP-capable phone should be able to use it as 
> a target of
> >      the call; no special extension to SIP should be required.
> >
> >
> ># R6 does not seem to be a requirement or it is, at the moment, not
> >phrased as one.
> >
> 
> The requirement is that what the mapping protocol returns be in
> the standard format for the communication protocol; that is, 
> it should return
> something in a SIP context that *any* SIP capable phone would 
> be able to use--it
> should not have special purpose URIs or schemes as its output, since
> those would not be understood by "legacy" SIP devices.  I 
> think it is reasonably
> clear on that point.  In some sense it is a constraint rather 
> than a requirement,
> but I think it is important to capture somewhere.
> 			regards,
> 				Ted Hardie
> 
> 
> 

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