1、 Reference numberISO/IEC TR 12861:2009(E)ISO/IEC 2009 TECHNICAL REPORT ISO/IECTR12861First edition2009-04-15 Information technology Telecommunications and information exchange between systems Next Generation Corporate Networks(NGCN)Identification and routing Technologies de linformation Tlcommunicat
2、ions et change dinformation entre systmes Rseaux dentreprise de prochaine gnration(NGCN)Identification et routage ISO/IEC TR 12861:2009(E)PDF disclaimer This PDF file may contain embedded typefaces.In accordance with Adobes licensing policy,this file may be printed or viewed but shall not be edited
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7、 www.iso.org Published in Switzerland ii ISO/IEC 2009 All rights reserved ISO/IEC TR 12861:2009(E)ISO/IEC 2009 All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.1 3 Terms and definitions.2 3.1 External definitions.2 3.2 Other definitions.3 4 Abbreviate
8、d terms.3 5 Background.4 6 Identified entities.4 7 Types of identifier.5 7.1 SIP,SIPS and TEL URIs as user identifiers(AoRs).5 7.1.1 Use of E.164 numbers.8 7.1.2 Private numbers formatted as telephone-subscriber strings.10 7.1.3 Email-style SIP URIs.11 7.2 Dial strings.12 7.3 Service identifiers.13
9、7.4 Device identifiers.13 8 Routing.14 8.1 General routing principles.14 8.2 Routing to the enterprise domain.15 8.3 Routing to the home server within the enterprise domain.15 8.4 Roaming considerations.16 9 Identification delivery and restriction.17 9.1 Identification delivery.17 9.2 Authenticity.1
10、7 9.3 Restriction.18 10 Summary of requirements and standardisation gaps.19 10.1 Requirements on NGNs.19 10.2 Requirements on enterprise networks.20 10.3 Standardisation gaps.20 ISO/IEC TR 12861:2009(E)iv ISO/IEC 2009 All rights reserved Foreword ISO(the International Organization for Standardizatio
11、n)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 w
12、ith 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 est
13、ablished a joint technical committee,ISO/IEC JTC 1.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,Part 2.The main task of the joint technical committee is to prepare International Standards.Draft International Standards adopted by the joint technical
14、 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 sha
15、ll 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
16、 bodies of ISO and IEC.ISO/IEC TR 12861:2009(E)ISO/IEC 2009 All rights reserved v 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 betw
