Network Working Group M. Procter Internet-Draft VoIP.co.uk Intended status: Informational S. Lawrence Expires: April 17, 2010 Nortel Networks, Inc. October 14, 2009 IANA Registration of the SFUACFG Application Service Tag draft-sipforum-ua-config-00 Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 17, 2010. Copyright Notice Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Abstract This document defines an application service tag for use according to RFC 4848 in the automated SIP User Agent configuration process Procter & Lawrence Expires April 17, 2010 [Page 1] Internet-Draft SIP Forum UA Config Service Tag October 2009 defined by the SIP Forum. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. U-NAPTR Application Service Tag Registration . . . . . . . . . 3 3. Security Considerations . . . . . . . . . . . . . . . . . . . . 3 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3 5. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.1. Normative References . . . . . . . . . . . . . . . . . . . 4 5.2. Informative References . . . . . . . . . . . . . . . . . . 4 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 4 Procter & Lawrence Expires April 17, 2010 [Page 2] Internet-Draft SIP Forum UA Config Service Tag October 2009 1. Introduction The SIP Forum [1] User Agent Configuration Recommendation [SFUACFG] defines a procedure for SIP [RFC3261] User Agents to 1. determine the SIP domain from which to request configuration, 2. locate one or more server(s) that provide the configuration service for that domain, 3. construct a URL for and request configuration from that service, 4. request that the service send notices of any changes to that configuration. The second step, locating the configuration service for a given domain, is achieved by the U-NAPTR (URI-Enabled NAPTR) application defined in [RFC4848], which builds upon the S-NAPTR (Simple NAPTR) application defined in [RFC3958]. This document registers the application service tag "SFUACFG" for this operation, as required by the U-NAPTR application. 2. U-NAPTR Application Service Tag Registration This document registers the following U-NAPTR application service tag: +-------------------------+-----------+ | Application Service Tag | SFUACFG | | Defining Publication | [SFUACFG] | +-------------------------+-----------+ 3. Security Considerations 4. IANA Considerations This document requests registration of the "SFUACFG" Application Service Tag in the registry defined by [RFC3958]. 5. References Procter & Lawrence Expires April 17, 2010 [Page 3] Internet-Draft SIP Forum UA Config Service Tag October 2009 5.1. Normative References [SFUACFG] Lawrence, S., Ed., "User Agent Configuration Recommendation", December 2009. [RFC3958] Daigle, L. and A. Newton, "Domain-Based Application Service Location Using SRV RRs and the Dynamic Delegation Discovery Service (DDDS)", RFC 3958, January 2005. [RFC4848] Daigle, L., "Domain-Based Application Service Location Using URIs and the Dynamic Delegation Discovery Service (DDDS)", RFC 4848, April 2007. 5.2. Informative References [RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP: Session Initiation Protocol", RFC 3261, June 2002. URIs [1] Authors' Addresses Michael Procter VoIP.co.uk Commerce House Telford Road Bicester, Oxfordshire OX26 4LD UK Email: michael@voip.co.uk URI: http://voip.co.uk Scott Lawrence Nortel Networks, Inc. 600 Technology Park Billerica, MA 01821 USA Phone: +1 978 288 5508 Email: scott.lawrence@nortel.com Procter & Lawrence Expires April 17, 2010 [Page 4]