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Versions: (draft-levin-enum-h323) 00 01 RFC 3762

   ENUM                                                        O. Levin
   Internet Draft                                             RADVISION
   Document: draft-ietf-enum-h323-00.txt

   Expires: August 2003                                   February 2003


                  ENUM Service Registration for H.323 URL


Status of this Memo

   This document is an Internet-Draft and is in full conformance
   with all provisions of Section 10 of RFC2026.

   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
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   The list of Internet-Draft Shadow Directories can be accessed at
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Abstract

   The H.323 specification [2] defines a means for building multimedia
   communication services over an arbitrary Packet Based Network,
   including the Internet. This document registers an ENUM service for
   H.323 according to specifications and guidelines in RFC2916bis [3].

















   Levin                 Expires: August 2003                        1

                  ENUM Service Registration for H.323 URL

Table of Contents

STATUS OF THIS MEMO....................................................1

ABSTRACT...............................................................1

INTRODUCTION...........................................................3

ENUM SERVICE REGISTRATION..............................................3

THE E2U+H323 ENUM SERVICE..............................................3

CONVENTIONS USED IN THIS DOCUMENT......................................3

SECURITY CONSIDERATIONS................................................3

IANA CONSIDERATIONS....................................................4

AUTHOR'S ADDRESSES.....................................................4

REFERENCES.............................................................4


































   Levin                 Expires: August 2003                        2

                  ENUM Service Registration for H.323 URL

Introduction

   The H.323 specification [2] defines a means for building multimedia
   communication services over an arbitrary Packet Based Network,
   including the Internet. When H.323 is used in the context of the
   Internet, it would be useful to take advantages of such services as
   domain name system (DNS) and ENUM in order to help facilitate the
   completion of multimedia calls.

   This document registers an ENUM service for H.323 according to
   specifications and guidelines in RFC2916bis [3].

ENUM Service Registration

   As defined in [3], the following is a template covering information
   needed for the registration of the enumservice specified in this
   document.

   -  Service Name: "E2U+H323"
   -  URI Scheme(s): "h323:"
   -  Functional Specification: see "The E2U+H323 ENUM Service" section
   -  Security considerations: see "Security Considerations" section
   -  Intended usage: COMMON
   -  Author: Orit Levin
   -  Any other information that the author deems interesting: None

The E2U+H323 ENUM Service

   This document defines the "E2U+H323" service to be used in the
   "service" sub-field of the "enumservice" as defined in [3].

   The H.323 related ENUM record MUST be populated with a standard
   H.323 URL as defined in [2]. This URL MAY include parameters
   specifying the specific protocols and the transport means the H.323
   entity supports.

   The H.323 entity MUST fully comply with the procedures defined in
   [3] for both record retrieval and processing by the DNS client.

   If, as a result of the ENUM DNS lookup, an H.323 URL matching local
   policies and capabilities is retrieved, the procedure defined in
   section "Address Resolution Procedure using DNS" of [5] SHOULD be
   performed.

Conventions used in this document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and "OPTIONAL" in
   this document are to be interpreted as described in RFC-2119 [1].

Security Considerations

   The h323-URL information, once populated in the DNS, effectively
   becomes publicly accessible. The access to the H.323 destinations

   Levin                 Expires: August 2003                        3

                  ENUM Service Registration for H.323 URL

   (published using ENUM) can be secured by techniques and procedures
   defined in H.235 [4] - the security framework for H.323. The
   framework defines means for achieving integrity, authentication,
   non-repudiation, encryption, etc. for H.323 calls.

IANA Considerations

   This document registers the ôE2U+H323ö ENUM service according to
   specifications and guidelines in RFC2916bis [3] and the definitions
   in this document.

Author's Addresses

   Orit Levin
   RADVISION
   266 Harristown Road          Phone:  +1-201-689-6330
   Glen Rock, NJ USA            Email:  orit@radvision.com

References

   1  RFC 2119 Bradner, S., "Key words for use in RFCs to Indicate
      Requirement Levels", BCP 14, RFC 2119, March 1997.
   2  "Packet-based multimedia communications systems", ITU-T
      Recommendation H.323, Nov 2000.
   3  Faltstrom, P. and M. Mealling, "The E.164 to URI DDDS
      Application", draft-ietf-enum-rfc2916bis-03 (work in progress),
      Jan 2003.
   4  "Security and encryption for H-Series(H.323 and other H.245-
      based) multimedia terminals", ITU-T Recommendation H.235, Nov
      2000.
   5  "Usage of URLs and DNS", ITU-T Recommendation H.323 Annex O (work
      in progress).























   Levin                 Expires: August 2003                        4


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