A new Request for Comments is now available in online RFC libraries.
RFC 3482
Title: Number Portability in the Global Switched
Telephone Network (GSTN): An Overview
Author(s): M. Foster, T. McGarry, J. Yu
Status: Informational
Date: February 2003
Mailbox: mark.foster@neustar.biz, tom.mcgarry@neustar.biz,
james.yu@neustar.biz
Pages: 30
Characters: 78552
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-enum-e164-gstn-np-05.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc3482.txt
This document provides an overview of E.164 telephone number
portability (NP) in the Global Switched Telephone Network
(GSTN).
NP is a regulatory imperative seeking to liberalize local
telephony service competition, by enabling end-users to retain
telephone numbers while changing service providers. NP changes the
fundamental nature of a dialed E.164 number from a hierarchical
physical routing address to a virtual address, thereby requiring the
transparent translation of the later to the former. In addition,
there are various regulatory constraints that establish relevant
parameters for NP implementation, most of which are not network
technology specific. Consequently, the implementation of NP
behavior consistent with applicable regulatory constraints, as well
as the need for interoperation with the existing GSTN NP
implementations, are relevant topics for numerous areas of IP
telephony works-in-progress with the IETF.
This document is a product of the Telephone Number Mapping Working
Group of the IETF.
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited
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USC/Information Sciences Institute
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