ECMA TR 86-2003 Corporate Telecommunication Networks User Identification in a SIP QSIG Environment《企业电信网络 SIP QSIG环境中的用户识别》.pdf
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1、 ECMA TR/86 1stEdition / December 2003 Corporate Telecommunication Networks User Identification in a SIP/QSIG Environment Technical Report ECMA TR/86 1stEdition / December 2003 Corporate Telecommunication Networks User Identification in a SIP/QSIG Environment Ecma International Rue du Rhne 114 CH-12
2、04 Geneva T/F: +41 22 849 6000/01 www.ecma-international.org IW TR-086.doc 06.01.2004 14:49 . Brief history This Technical Report investigates user identification within Corporate telecommunication Networks (CNs) (also known as enterprise networks) comprising a mixture of Private Integrated Services
3、 Network (PISNs) and Internet Protocol (IP) networks. It focuses on similarities and differences between numbers used in PISNs and Universal Resource Identifiers (URIs) used in IP networks, in particular where the Session Initiation Protocol (SIP) is used. This Technical Report is based upon the pra
4、ctical experience of Ecma member companies and the results of their active and continuous participation in the work of ISO/IEC JTC1, ITU-T, ETSI, IETF and other international and national standardization bodies. It represents a pragmatic and widely based consensus. The December 2003 General Assembly
5、 adopted this, 1stedition, of ECMA TR/86. Table of contents 1 Scope 1 2 References 1 3 Definitions 2 3.1 External definitions 2 3.2 Other definitions 2 3.2.1 Corporate telecommunication Network (CN) (also known as enterprise network) 2 3.2.2 Gateway 2 3.2.3 Identifier 2 3.2.4 Identification domain 2
6、 3.2.5 Identification number 2 3.2.6 IP network 2 3.2.7 Number 2 3.2.8 Numbering domain 2 3.2.9 PISN number 2 3.2.10 Privacy 2 3.2.11 Private Integrated Service Network (PISN) 2 3.2.12 Selection number 2 3.2.13 SIP network 2 3.2.14 Sub-domain 2 3.2.15 Trust domain 3 4 Acronyms 3 5 Background 3 6 Nam
7、ing schemes 4 6.1 The meaning of a name 4 6.2 Names and users 4 6.3 Numeric and non-numeric names 4 6.4 Context of a name 4 6.5 Allocation of names 4 6.6 Naming schemes in circuit-switched networks 4 6.7 Naming schemes in IP networks 5 6.8 Universal Communications Identifier (UCI) 5 7 Signalling pro
8、tocols 6 - i - 8 Overview of naming, numbering and addressing in QSIG 6 8.1 Numbers as a means of identifying entities 6 8.2 Numbering plans 7 8.3 Use of numbers in QSIG 7 9 Overview of identification in SIP 8 9.1 URIs as a means of identifying entities 8 9.1.1 Telephone URI 8 9.1.2 SIP URI 8 9.1.3
9、Display name 9 9.2 Use of URIs in SIP 9 10 Comparison of numbers and non-numeric names for use in SIP 10 10.1 Numbers in SIP 10 10.2 Non-numeric names in SIP 10 10.3 Summary 11 11 Interworking scenarios 11 12 Interworking functions 12 12.1 Converting PISN numbers to URIs 12 12.1.1 Selection and iden
10、tification numbers 12 12.1.2 Choice of URI scheme 12 12.1.3 Choice of host 12 12.1.4 Mapping the number to a URI userinfo field 12 12.2 Converting URIs to PISN numbers 13 12.2.1 Selection and identification numbers 13 12.2.2 Support of different URI schemes 13 12.2.3 Use of the host field 13 12.2.4
11、Mapping the URI userinfo field to a PISN number 13 13 Use of ENUM 13 14 Asserted identity and privacy in SIP 14 14.1 Overview of asserted identity RFC 14 14.2 Overview of general privacy RFC 14 14.3 Applicability to QSIG-SIP interworking 15 14.3.1 Trust within a CN 15 14.3.2 Trust outside a CN 16 15
12、 Conclusions 16 Annex A - Mapping between QSIG information elements and SIP P-Asserted-Identity and Privacy headers 17 - ii - 1 Scope This Technical Report examines means of identifying or naming users of telephony services within a Corporate telecommunication Network (CN) (also known as an enterpri
13、se network). Numeric names (numbers) are used in traditional Private Integrated Services Networks (PISNs) using QSIG as the network signalling protocol. They are also used for external communication, e.g., with a public Integrated Services Digital Network (ISDN). Names need not be numeric in Interne
14、t Protocol (IP) networks employing signalling protocols such as the Session Initiation Protocol (SIP). This Technical Report therefore looks at naming schemes that are appropriate within corporate IP networks, in particular corporate IP networks employing SIP as the signalling protocol. It also inve
15、stigates naming schemes that are appropriate in a mixed QSIG/SIP CN and the treatment of names at an interworking point. It details the use of names not only for selecting a user to participate in a call, but also as a means of identifying a user in a call to other users in that call. ENUM and priva
16、te ENUM-like services are also examined. 2 References ECMA-143 Private Integrated Services Network (PISN) - Circuit Mode Bearer Services - Inter-Exchange Signalling Procedures and Protocol (2001) ECMA-155 Private Integrated Services Networks - Addressing (1997) ECMA-164 Private Integrated Services N
17、etwork (PISN) - Inter-Exchange Signalling Protocol - Name Identification Supplementary Services (2001) ECMA-165 Private Integrated Services Network (PISN) - Generic Functional Protocol for the Support of Supplementary Services - Inter-Exchange Signalling Procedures and Protocol (2001) ETSI EG 201 94
18、0 Human Factors (HF); User identification solutions in converging networks (2001-04) ETSI TR 101 326 Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON); The procedure for determining IP addresses for routeing packets on interconnected IP networks that support public teleph
19、ony (2002-02) IETF RFC 1034 Domain Names Concepts and Facilities (1987-11) IETF RFC 2396 Uniform Resource Identifiers (URI): Generic Syntax (1998-08) IETF RFC 2806 URLs for Telephone Calls (1998-08) IETF RFC 2916 E.164 number and DNS (2000-09) IETF RFC 3261 SIP: Session Initiation Protocol (2002-06)
20、 IETF RFC 3323 A Privacy Mechanism for the Session Initiation Protocol (SIP) (2002-11) IETF RFC 3324 Short Term Requirements for Network Asserted Identity (2002-11) IETF RFC 3325 Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks (2002-11) ITU-T
21、 Recommendation E.164 The International Public Telecommunication Numbering Plan (1997-05) ITU-T Recommendation H.323 Packet-Based Multimedia Communications Systems (2000-11) - 1 - 3 Definitions For the purposes of this Technical Report, the following definitions apply. 3.1 External definitions This
22、Technical Report uses the following terms defined in other documents: Universal Resource Identifier (URI) (RFC 2396) Additionally the definitions in ECMA-143 and RFC 3261 apply as appropriate. 3.2 Other definitions 3.2.1 Corporate telecommunication Network (CN) (also known as enterprise network) Set
23、s of privately-owned or carrier-provided equipment that are located at geographically dispersed locations and are interconnected to provide telecommunication services to a defined group of users. NOTE A CN can comprise a PISN, a private IP network (intranet) or a combination of the two. 3.2.2 Gatewa
24、y A point of interworking between a PISN employing QSIG and a SIP network. 3.2.3 Identifier A name by which the user of a network is known. 3.2.4 Identification domain A set of identifiers controlled by a single administration. 3.2.5 Identification number A number used to identify an existing party
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