RFC 3482 (rfc3482) - Page 1 of 30
Number Portability in the Global Switched Telephone Network (GSTN): An Overview
Alternative Format: Original Text Document
Network Working Group M. Foster
Request for Comments: 3482 T. McGarry
Category: Informational J. Yu
NeuStar, Inc.
February 2003
Number Portability in the Global Switched Telephone Network (GSTN):
An Overview
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2003). All Rights Reserved.
Abstract
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.
Foster, et al. Informational