Re: [Slim] Question about "asymmetrical language use"

Randall Gellens <rg+ietf@randy.pensive.org> Tue, 09 January 2018 23:50 UTC

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Date: Tue, 09 Jan 2018 15:50:45 -0800
To: Bernard Aboba <bernard.aboba@gmail.com>, slim@ietf.org, Gunnar Hellström <gunnar.hellstrom@omnitor.se>
From: Randall Gellens <rg+ietf@randy.pensive.org>
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Subject: Re: [Slim] Question about "asymmetrical language use"
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The wording is intended to permit only one to be specified for 
asymmertical use cases, it is not intended to disallow both to be 
specified.  This could be clarified by adding "or both":

    When placing an emergency call, and in any other case where the
    language cannot be inferred from context, in an offer each media
    stream primarily intended for human language communication SHOULD
    specify both (or for asymmetrical language use, one or both of) the
    'hlang-send' and 'hlang-recv' attributes.


At 3:07 PM -0800 1/9/18, Bernard Aboba wrote:

>  In Section 5.1 of -22, I noted the following sentence:
>
>  " When placing an emergency call, and in any other case where 
> the language cannot be inferred from context, in an offer each 
> media stream primarily intended for human language communication 
> SHOULD specify both (or for asymmetrical language use, one of) the 
> 'hlang- send' and 'hlang-recv' attributes."
>
>  [BA] In our previous discussions, we have talked about scenarios 
> (e.g. speech impaired, but not hearing impaired) in which it is 
> useful to include both 'hlang-send' and 'hlang-recv' so as to 
> accommodate user needs.  Wouldn't such a scenario qualify as 
> "asymmetrical language use"?  If so, how could the user's needs be 
> accommodated with only one of the 'hlang-send' or 'hlang-recv' 
> attributes?
>
>
>
>  _______________________________________________
>  SLIM mailing list
>  SLIM@ietf.org
>  https://www.ietf.org/mailman/listinfo/slim


-- 
Randall Gellens
Opinions are personal;    facts are suspect;    I speak for myself only
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