RE: [Sipping-tispan] FW: I-DACTION:draft-rocky-sipping-override-barring-00.txt

Hi, all,
   More background information about this draft is maybe useful for you
when you begin read it.

   In the last IETF meeting in Vancouver, I have submitted a draft to
implement the functionality to override barring service in use of an
extion header, P-CPC (See in
draft-rocky-sipping-calling-party-category-01) which is also mentioned
in this draft. Because more issues must be re-considered. A key one is
the security consideration because the called network server will not
always know whether the information is provided by a real calling
network server, or some other malformed attacker. This is a problem if
the network diagram is not decided. As experts sugestion, I tried to
search for an appoach in use of SAML.

   SAML can be used to convey a set of information, include the
authentication information and calling party features. There is team
researching on the deploy SAML in SIP (Ses in
draft-tschofenig-sip-saml-04.txt).

   I have collected some types of the functionalities to override
barring services. Maybe there are some more. Would you please tell me if
you know. And for listed types, there maybe some more typical appoaches.
I thank you too to receives more appoaches from you. Any comments are
welcome.

Best Regards,
Rocky Wang

> -----Original Message-----
> From: sipping-tispan-bounces@ietf.org 
> [mailto:sipping-tispan-bounces@ietf.org] On Behalf Of Rocky Wang
> Sent: 2006年2月5日 17:11
> To: sipping@ietf.org; sipping-tispan@ietf.org
> Subject: [Sipping-tispan] FW: 
> I-DACTION:draft-rocky-sipping-override-barring-00.txt
> 
> 
> Hi, All,
>     An initial draft is available now. It has collected some 
> appoaches for overriding barring services.
>     Please kindly give your comments. And if you find some 
> more appoaches, please let me know.
> 
> Best regards,
> Rocky Wang
> 
> 
> -----Original Message-----
> From: i-d-announce-bounces@ietf.org 
> [mailto:i-d-announce-bounces@ietf.org] On Behalf Of 
> Internet-Drafts@ietf.org
> Sent: 2006年1月27日 4:50
> To: i-d-announce@ietf.org
> Subject: I-D ACTION:draft-rocky-sipping-override-barring-00.txt
> 
> 
> A New Internet-Draft is available from the on-line 
> Internet-Drafts directories.
> 
> 
> 	Title		: A method to override the barring services
> 	Author(s)	: R. Wang
> 	Filename	: draft-rocky-sipping-override-barring-00.txt
> 	Pages		: 25
> 	Date		: 2006-1-26
> 	
>    The document collects some approaches used to implement the
>    functionalities of Override Barring Services in Session Initial
>    Protocol (SIP), and gives detailed description of service flows for
>    each type of the functionalities. Some methods such as SAML, CPC,
>    which is used to implement service, are also dealt with in the
>    document.
> 
> A URL for this Internet-Draft is:
>  
http://www.ietf.org/internet-drafts/draft-rocky-sipping-override-barring
-00.txt

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