[sipcore] Benjamin Kaduk's Discuss on draft-ietf-sipcore-reason-q850-loc-06: (with DISCUSS and COMMENT)

Datatracker on behalf of Benjamin Kaduk <noreply@ietf.org> Thu, 07 March 2019 09:49 UTC

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From: Datatracker on behalf of Benjamin Kaduk <noreply@ietf.org>
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Cc: draft-ietf-sipcore-reason-q850-loc@ietf.org, Brian Rosen <br@brianrosen.net>, sipcore-chairs@ietf.org, br@brianrosen.net, sipcore@ietf.org
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Date: Wed, 06 Mar 2019 21:21:30 -0800
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Subject: [sipcore] Benjamin Kaduk's Discuss on draft-ietf-sipcore-reason-q850-loc-06: (with DISCUSS and COMMENT)
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Benjamin Kaduk has entered the following ballot position for
draft-ietf-sipcore-reason-q850-loc-06: Discuss

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https://datatracker.ietf.org/doc/draft-ietf-sipcore-reason-q850-loc/



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DISCUSS:
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I support Adam's Discuss.

I also think that the Section 4 text:

   The use of the location parameter is restricted to Q850 cause values.
   Other values MUST be ignored if present.

needs to be clear about whether it is intended to limit to the exact 16 strings
listed above, or whether the intent is to update with Q850 if new values are
allocated.  Are string aliases allowed for the "national-use" codepoints
if allocated within a given nation?


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COMMENT:
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Section 1

   the reason of release.  The reason of release does indicate why a SIP
   Dialog or an PSTN call, in case where the call was interworked to the

nits: s/does indicate/indicates/ ; s/an PSTN/a PSTN/

Section 3

   The primary intent of the parameter defined in this specification is
   for use in IMS (IP Multimedia Subsystem) networks defined by 3GPP but
   also open to be used by any other network that includes ISUP

nit: s/also/it is also/

Section 4

   Depending on whether the message is a request or a response the UAC
   or UAS SHALL include the location parameter when setting up the
   Reason header field with a [Q.850] cause.  This approach is only
   possible in cases when the ISUP [Q.850] location is available.

I don't understand what depends on whether the message is a request or a
response.