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Minimal GSTN address format in Internet Mail (RFC3191)

IP.com Disclosure Number: IPCOM000005868D
Original Publication Date: 2001-Oct-01
Included in the Prior Art Database: 2001-Nov-13
Document File: 14 page(s) / 24K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

C. Allocchio: AUTHOR

Abstract

This memo describes a simple method of encoding Global Switched Telephone Network (GSTN) addresses (commonly called "telephone numbers") in the local-part of Internet email addresses, along with an extension mechanism to allow encoding of additional standard attributes needed for email gateways to GSTN-based services.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 14% of the total text.

Network Working Group                                       C. Allocchio

Request for Comments: 3191                                    GARR-Italy

Obsoletes: 2303                                             October 2001

Updates: 2846

Category: Standards Track

              Minimal GSTN address format in Internet Mail

Status of this Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

   This memo describes a simple method of encoding Global Switched

   Telephone Network (GSTN) addresses (commonly called "telephone

   numbers") in the local-part of Internet email addresses, along with

   an extension mechanism to allow encoding of additional standard

   attributes needed for email gateways to GSTN-based services.

1. Introduction

   As with all Internet mail addresses, the left-hand-side (local-part)

   of an address generated according to this specification, is not to be

   interpreted except by an MTA that handles messages for the domain

   given in the right-hand-side.

   Since the very first e-mail to GSTN services gateway appeared, a

   number of different methods to specify a GSTN address as an e-mail

   address have been used by implementors.  Several objectives for this

   methods have been identified, like to enable an e-mail user to access

   GSTN services from his/her e-mail interface, to allow some kind of

   "GSTN over e-mail service" transport (possibly reducing the costs of

   GSTN long distance transmissions) while using the existing e-mail

   infrastructure.

Allocchio                   Standards Track                     [Page 1]

RFC 3191      Minimal GSTN address format in Internet Mail  October 2001

   This memo describes the MINIMAL addressing method to encode GSTN

   addresses into e-mail addresses and the standard extension mechanism

   to allow definition of further standard elements.  The opposite

   problem, i.e., to allow a traditional numeric-only GSTN device user

   to access the e-mail transport service, is not discussed here.

   The IANA registration templates which MUST be used to register any

   standard element defined according to this specification are given in

   the "IANA Considerations" chapter (section 7 of this document).

   All implementations supporting this GSTN over e-mail service MUST

   support as a minimum the specification described in this document.

   The generic complex case of converting the entirety of GTSN

   addressing into e-mail is out of scope in this minimal specification.

1.1 Terminology and Syntax conventions

   In this document the formal definitions are described using ABNF

   syntax, as defined into [7].  This memo also uses some of the "CORE

   DEFINITIONS" defined in "APPENDIX A - CORE" of that document.  The

   exact meaning of the capitalized words

      "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",

      "SHOULD NOT", "RECOMMENDED", "MAY", "OPTIONAL"

   is defined in reference...