ISO/IEC 14136:1995 情報技術—システム間の電気通信と情報交換—プライベート統合サービスネットワーク—仕様、機能モデル、および情報フロー—識別補足サービス | ページ 2

4.1 外部定義

この国際規格では、他の文書で定義されている次の用語を使用しています。

この国際規格は、ISO/IEC 11574 で定義されている次の基本的な呼び出し機能エンティティ (FE) を参照しています。

• コール制御 (CC)
• コール コントロール エージェント（CCA）

この国際規格は、ISO/IEC 11574 で定義されている次の基本的なコール間の FE 関係を参照しています。

• rl
• r2
• r3

この国際規格は、ISO/IEC 11574 で定義されている次の基本的な呼情報フローを参照しています。

• 設定要求・指示
• 応答/確認をセットアップします。

4.2.1発 ユーザー番号: 発ユーザーの PISN 番号。

4.2.2 発信者サブアドレス: 発信者が識別目的で提供するサブアドレス。

4.2.3 接続ユーザー: 通話に応答する被呼ユーザー。

4.2.4 接続利用者番号: 接続利用者を識別するための PISN 番号。

4.2.5 接続ユーザーサブアドレス: 接続ユーザー が提供するサブアドレス。

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. 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.

International Standard ISO/IEC 14136 was prepared by European Computer Manufacturers Association (ECMA) (as Standard ECMA-148) 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.

Annex A of this International Standard is for information only.

Introduction

This International Standard is one of a series of International Standards defining services and signalling protocols applicable to Private Integrated Services Networks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the framework of International Standards for Open Systems Interconnection as defined by ISO/IEC.

This particular International Standard specifies the Identification supplementary services, which allow a user involved in a call to receive information concerning the identity (number and subaddress) of the other user in the call. In addition a user can prevent the presentation of his number to other users. Corresponding services are specified for public ISDNs in CCITT recommendations 1.251 and Q.81 (1992), and annex A to this International Standard provides a comparison.

1 Scope

This International Standard specifies the following Identification supplementary services: Calling Line Identification Presentation (SS-CLIP), Connected Line Identification Presentation (SS-COLP) and Calling/Connected Line Identification Restriction (SS-CLIR), which are applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574.

Calling Line Identification Presentation (SS-CLIP) is a supplementary service which is offered to the called user and which provides the calling user's PISN number, and possibly a subaddress, to the called user.

Connected Line Identification Presentation (SS-COLP) is a supplementary service which is offered to the calling user and which provides the called (connected) user's PISN number, and possibly a subaddress, to the calling user.

Calling/connected Line Identification Restriction (SS-CLIR) is a supplementary service offered to a user to restrict presentation of that user's PISN number to another user.

Supplementary service specifications are produced in three stages, according to the method described in CCITT Recommendation 1.130. This International Standard contains the stage 1 and stage 2 specifications of SS-CLIP, SS-COLP and SS-CLIR. The stage 1 specifications (clauses 6, 7 and 8) specify the supplementary services as seen by users of PISNs. The stage 2 specifications (clauses 9, 10 and 11) identify the functional entities involved in the supplementary services and the information flows between them.

3 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.

4 Definitions

For the purposes of this International Standard the following definitions apply.

4.2 Other definitions