ISO/IEC TR 12861:2009 情報技術—システム間の電気通信と情報交換—次世代企業ネットワーク（NGCN）—識別とルーティング | ページ 2

3.1 外部定義

このテクニカル レポートでは、ISO/IEC TR 12860 で定義されている次の用語を使用しています。

• •ドメイン
• •エンタープライズ ネットワーク
• •ホームサーバー
• •次世代企業ネットワーク (NGCN)
• •次世代ネットワーク (NGN)
• •プライベート ネットワーク トラフィック
• •パブリック ネットワーク トラフィック
• •ローミング
• •ローミングハブ
• • SIP仲介

このテクニカル レポートでは、ISO/IEC 11571 [1] で定義されている次の用語を使用します。

• •番号計画
• •プライベート番号計画

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 2.

The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.

ISO/IEC TR 12861 was prepared by Ecma International (as ECMA TR/96) and was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by national bodies of ISO and IEC.

Introduction

This Technical Report is one of a series of Ecma publications that explore IP-based enterprise communication involving Corporate telecommunication Networks (CNs) (also known as enterprise networks) and in particular Next Generation Corporate Networks (NGCN). The series particularly focuses on inter-domain communication, including communication between parts of the same enterprise, between enterprises and between enterprises and carriers. This particular Technical Report discusses issues related to user identities and routing and builds upon concepts introduced in ISO/IEC TR 12860.

This Technical Report is based upon the practical experience of Ecma member companies and the results of their active and continuous participation in the work of ISO/IEC JTC 1, ITU-T, ETSI, IETF and other international and national standardization bodies. It represents a pragmatic and widely based consensus. In particular, Ecma acknowledges valuable input from experts in ETSI TISPAN.

1 Scope

This Technical Report is one of a series of publications that provides 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). The series particularly focuses on session level communication based on the Session Initiation Protocol (SIP) [4], with an emphasis on inter-domain communication. This includes communication between parts of the same enterprise (on dedicated infrastructures and/or hosted), between enterprises and between enterprises and public networks. Particular consideration is given to Next Generation Networks (NGN) as public networks and as providers of hosted enterprise capabilities. Key technical issues are investigated, current standardisation work and gaps in this area are identified, and a number of requirements are stated. Among other uses, this series of publications can act as a reference for other standardisation bodies working in this field, including ETSI TISPAN, 3GPP, IETF and ITU-T.

This particular Technical Report discusses session level user identification and routing. It uses terminology and concepts developed in ISO/IEC TR 12860. It identifies a number of requirements impacting NGN standardisation and concerning deployment of enterprise networks.

The scope of this Technical Report is limited to communications with a real-time element, including but not limited to voice, video, real-time text and instant messaging.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.2 Other definitions