Managing, Ordering, Distributing, Exposing, and Registering Telephone Numbers (MODERN): Problem Statement, Use Cases, and Framework
RFC 8396

Document Type RFC - Informational (July 2018; No errata)
Last updated 2018-07-20
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IESG IESG state RFC 8396 (Informational)
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Internet Engineering Task Force (IETF)                       J. Peterson
Request for Comments: 8396                                 NeuStar, Inc.
Category: Informational                                       T. McGarry
ISSN: 2070-1721                                                July 2018

 Managing, Ordering, Distributing, Exposing, and Registering Telephone
     Numbers (MODERN): Problem Statement, Use Cases, and Framework

Abstract

   The functions of the Public Switched Telephone Network (PSTN) are
   rapidly migrating to the Internet.  This is generating new
   requirements for many traditional elements of the PSTN, including
   Telephone Numbers (TNs).  TNs no longer serve simply as telephone
   routing addresses: they are now identifiers that may be used by
   Internet-based services for a variety of purposes including session
   establishment, identity verification, and service enablement.  This
   problem statement examines how the existing tools for allocating and
   managing telephone numbers do not align with the use cases of the
   Internet environment and proposes a framework for Internet-based
   services relying on TNs.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are candidates for any level of Internet
   Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8396.

Peterson & McGarry            Informational                     [Page 1]
RFC 8396                     MODERN Problems                   July 2018

Copyright Notice

   Copyright (c) 2018 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Problem Statement . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Actors  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  Data Types  . . . . . . . . . . . . . . . . . . . . . . .   7
     2.3.  Data Management Architectures . . . . . . . . . . . . . .   8
   3.  Framework . . . . . . . . . . . . . . . . . . . . . . . . . .   9
   4.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . . . .  11
     4.1.  Acquisition . . . . . . . . . . . . . . . . . . . . . . .  11
       4.1.1.  Acquiring TNs from Registrar  . . . . . . . . . . . .  12
       4.1.2.  Acquiring TNs from CSPs . . . . . . . . . . . . . . .  13
     4.2.  Management  . . . . . . . . . . . . . . . . . . . . . . .  14
       4.2.1.  Management of Administrative Data . . . . . . . . . .  14
         4.2.1.1.  Managing Data at a Registrar  . . . . . . . . . .  14
         4.2.1.2.  Managing Data at a CSP  . . . . . . . . . . . . .  15
       4.2.2.  Management of Service Data  . . . . . . . . . . . . .  15
         4.2.2.1.  CSP to Other CSPs . . . . . . . . . . . . . . . .  16
         4.2.2.2.  User to CSP . . . . . . . . . . . . . . . . . . .  16
       4.2.3.  Managing Change . . . . . . . . . . . . . . . . . . .  16
         4.2.3.1.  Changing the CSP for an Existing Service  . . . .  16
         4.2.3.2.  Terminating a Service . . . . . . . . . . . . . .  17
     4.3.  Retrieval . . . . . . . . . . . . . . . . . . . . . . . .  17
       4.3.1.  Retrieval of Public Data  . . . . . . . . . . . . . .  18
       4.3.2.  Retrieval of Semi-restricted Administrative Data  . .  18
       4.3.3.  Retrieval of Semi-restricted Service Data . . . . . .  19
       4.3.4.  Retrieval of Restricted Data  . . . . . . . . . . . .  19
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
   6.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  20
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  21
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  22
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  22

Peterson & McGarry            Informational                     [Page 2]
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