Table of Contents

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
   3.1 External definitions
   3.2 Other definitions
4 Abbreviated terms
5 Background
6 Identified entities
7 Types of identifier
   7.1 SIP, SIPS and TEL URIs as user identifiers (AoRs)
        7.1.1 Use of E.164 numbers
        7.1.2 Private numbers formatted as telephone-subscriber
               strings
        7.1.3 Email-style SIP URIs
   7.2 Dial strings
   7.3 Service identifiers
   7.4 Device identifiers
8 Routing
   8.1 General routing principles
   8.2 Routing to the enterprise domain
   8.3 Routing to the home server within the enterprise
        domain
   8.4 Roaming considerations
9 Identification delivery and restriction
   9.1 Identification delivery
   9.2 Authenticity
   9.3 Restriction
10 Summary of requirements and standardisation gaps
   10.1 Requirements on NGNs
   10.2 Requirements on enterprise networks
   10.3 Standardisation gaps

Abstract

Gives an overview of IP-based enterprise communication involving Corporate telecommunication Networks (CNs) (also known as enterprise networks) and in particular Next Generation Corporate Networks (NGCN).

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	JTC 1