Re: [cuss] "isdn-uui" versus "isdn-network"

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 21 November 2013 23:52 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "Vijay K. Gurbani" <vkg@bell-labs.com>, Andrew Allen <aallen@blackberry.com>, "bruno.chatras@orange.com" <bruno.chatras@orange.com>, "cuss@ietf.org" <cuss@ietf.org>
Thread-Topic: [cuss] "isdn-uui" versus "isdn-network"
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Date: Thu, 21 Nov 2013 23:51:54 +0000
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Subject: Re: [cuss] "isdn-uui" versus "isdn-network"
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Hi,



Why did we change the value to begin with? Was the reason pure "cosmetic"?



Anyway, whatever the reason, as the ABNF syntax for the purpose header field parameter value vis "token", a parser should be able to handle also "isdn-network".



Regards,



Christer





________________________________
From: cuss [cuss-bounces@ietf.org] on behalf of Vijay K. Gurbani [vkg@bell-labs.com]
Sent: Thursday, 21 November 2013 9:00 PM
To: Andrew Allen; bruno.chatras@orange.com; cuss@ietf.org
Subject: Re: [cuss] "isdn-uui" versus "isdn-network"

On 11/21/2013 11:40 AM, Andrew Allen wrote:
> Vijay
>
> I don't think we are talking about applying this to the nth degree I
> think we are simply recognizing that in this case there are deployed
> systems out there that we ought to attempt to interoperate with if
> that can relatively easily be achieved..
>
> I am not sure it complicates the parser greatly to have two possible
> tokens (A or B) as the value of a parameter and then in the call
> processing logic have an if A or B statement.

Andrew: If you look at the SIP grammar, this obviously will not be the
only header with multiple representations.  We simply keep on adding
to that list.

Beyond that, I think discussing about this to a great degree will not
lead us anywhere.  I am interested in this issue from an academic
point of view, but pragmatism says that we proceed further without
delays.

As an individual, I am happy to allow the draft to proceed with the
alias defined (or not).

Thanks,

- vijay
--
Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent
1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60563 (USA)
Email: vkg@{bell-labs.com,acm.org} / vijay.gurbani@alcatel-lucent.com
Web: http://ect.bell-labs.com/who/vkg/  | Calendar: http://goo.gl/x3Ogq
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