The 'npdi' parameter

Paul's answer is correct.   If a sip URI does not carry the
phone number
(e.g., sip:jacksmithspA.com), npdi is meaningless in the sip
URI.    If
the sip URI carries the phone numbers (e.g., with
user=phone), then all
the tel URI parameters including the npdi, rn and other
could be
included in the user part of that sip URI.

James

-----Original Message-----
From: iptel-bouncesietf.org [mailto:iptel-bouncesietf.org]
On Behalf
Of Paul Kyzivat
Sent: Tuesday, January 24, 2006 10:28 AM
To: Miguel Garcia
Cc: iptelietf.org
Subject: Re: [Iptel] The 'npdi' parameter

Miguel,

Doesn't all the syntax that applies to tel URIs also apply
to sip/sips 
URIs with user=phone? Does that have to be restated for each
new 
extension to tel?

	Paul

Miguel Garcia wrote:
> Hi:
> 
> I was reading the Number Portability parameters for the
Tel URI, 
> draft-ietf-iptel-tel-np-08.txt, and I have no problem
with the draft 
> itself. But I was wondering if the 'npdi' parameter
should be also 
> defined for SIP URIs that carry telephone numbers.
> 
> Let's assume I have a SIP UA that encodes E.164 numbers
as SIP URIs, 
> perhaps with the "user=dialstring" defined in

> draft-rosen-iptel-dialstring-02.txt. If a node does an
NP translation,

> we don't have the means to indicate that the query to
the NPDB has
taken 
> place. But if the E.164 number is encoded as a tel URI
there is.
> 
> In my opinion this claims for the npdi parameter to be
applicable to
SIP 
> URIs as well. Any thoughts?
> 
> /Miguel
> 

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Miguel's example, though, talks about user=dialstring. I
don't think the 
npdi actually makes much sense for dialstrings.

-Jonathan R.

Yu, James wrote:

> Paul's answer is correct.   If a sip URI does not carry
the phone number
> (e.g., sip:jacksmithspA.com), npdi is
meaningless in the sip URI.    If
> the sip URI carries the phone numbers (e.g., with
user=phone), then all
> the tel URI parameters including the npdi, rn and other
could be
> included in the user part of that sip URI.
> 
> James
> 
> -----Original Message-----
> From: iptel-bouncesietf.org
[mailto:iptel-bouncesietf.org] On Behalf
> Of Paul Kyzivat
> Sent: Tuesday, January 24, 2006 10:28 AM
> To: Miguel Garcia
> Cc: iptelietf.org
> Subject: Re: [Iptel] The 'npdi' parameter
> 
> Miguel,
> 
> Doesn't all the syntax that applies to tel URIs also
apply to sip/sips 
> URIs with user=phone? Does that have to be restated for
each new 
> extension to tel?
> 
> 	Paul
> 
> Miguel Garcia wrote:
> 
>>Hi:
>>
>>I was reading the Number Portability parameters for
the Tel URI, 
>>draft-ietf-iptel-tel-np-08.txt, and I have no
problem with the draft 
>>itself. But I was wondering if the 'npdi' parameter
should be also 
>>defined for SIP URIs that carry telephone numbers.
>>
>>Let's assume I have a SIP UA that encodes E.164
numbers as SIP URIs, 
>>perhaps with the "user=dialstring" defined
in 
>>draft-rosen-iptel-dialstring-02.txt. If a node does
an NP translation,
> 
> 
>>we don't have the means to indicate that the query
to the NPDB has
> 
> taken 
> 
>>place. But if the E.164 number is encoded as a tel
URI there is.
>>
>>In my opinion this claims for the npdi parameter to
be applicable to
> 
> SIP 
> 
>>URIs as well. Any thoughts?
>>
>>/Miguel
>>
> 
> 
> _______________________________________________
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> Iptelietf.org
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www1.ietf.org/mailman/listinfo/iptel
> 
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> Iptel mailing list
> Iptelietf.org
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> 

-- 
Jonathan D. Rosenberg, Ph.D.                   600 Lanidex
Plaza
Cisco Fellow                                   Parsippany,
NJ 07054-2711
Cisco Systems
jdrosencisco.com                              FAX:   (973)
952-5050
http://www.jdrosen.net 
                       PHONE: (973) 952-5000
http://www.cisco.com

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Jonathan Rosenberg wrote:
> Miguel's example, though, talks about user=dialstring.
I don't think the 
> npdi actually makes much sense for dialstrings.

I agree it doesn't make too much sense for user=dialstring.
But it does 
make sense for user=phone.

	Paul

> -Jonathan R.
> 
> Yu, James wrote:
> 
>> Paul's answer is correct.   If a sip URI does not
carry the phone number
>> (e.g., sip:jacksmithspA.com), npdi is
meaningless in the sip URI.    If
>> the sip URI carries the phone numbers (e.g., with
user=phone), then all
>> the tel URI parameters including the npdi, rn and
other could be
>> included in the user part of that sip URI.
>>
>> James
>>
>> -----Original Message-----
>> From: iptel-bouncesietf.org
[mailto:iptel-bouncesietf.org] On Behalf
>> Of Paul Kyzivat
>> Sent: Tuesday, January 24, 2006 10:28 AM
>> To: Miguel Garcia
>> Cc: iptelietf.org
>> Subject: Re: [Iptel] The 'npdi' parameter
>>
>> Miguel,
>>
>> Doesn't all the syntax that applies to tel URIs
also apply to sip/sips 
>> URIs with user=phone? Does that have to be restated
for each new 
>> extension to tel?
>>
>>     Paul
>>
>> Miguel Garcia wrote:
>>
>>> Hi:
>>>
>>> I was reading the Number Portability parameters
for the Tel URI, 
>>> draft-ietf-iptel-tel-np-08.txt, and I have no
problem with the draft 
>>> itself. But I was wondering if the 'npdi'
parameter should be also 
>>> defined for SIP URIs that carry telephone
numbers.
>>>
>>> Let's assume I have a SIP UA that encodes E.164
numbers as SIP URIs, 
>>> perhaps with the "user=dialstring"
defined in 
>>> draft-rosen-iptel-dialstring-02.txt. If a node
does an NP translation,
>>
>>
>>
>>> we don't have the means to indicate that the
query to the NPDB has
>>
>>
>> taken
>>
>>> place. But if the E.164 number is encoded as a
tel URI there is.
>>>
>>> In my opinion this claims for the npdi
parameter to be applicable to
>>
>>
>> SIP
>>
>>> URIs as well. Any thoughts?
>>>
>>> /Miguel
>>>
>>
>>
>> _______________________________________________
>> Iptel mailing list
>> Iptelietf.org
>> https://
www1.ietf.org/mailman/listinfo/iptel
>>
>> _______________________________________________
>> Iptel mailing list
>> Iptelietf.org
>> https://
www1.ietf.org/mailman/listinfo/iptel
>>
> 

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