ETSI TS 101 315-2003 Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4 Information flow and reference point definitions Implementation of serv.pdf

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1、 ETSI TS 101 315 V4.1.1 (2003-11)Technical Specification Telecommunications and Internet ProtocolHarmonization Over Networks (TIPHON) Release 4;Information flow and reference point definitions;Implementation of service capabilitiesETSI ETSI TS 101 315 V4.1.1 (2003-11) 2 Reference RTS/TIPHON-02007R4

2、Keywords architecture, internet, IP, service, telephony, VoIP ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Im

3、portant notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is

4、the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. In

5、formation on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: editoretsi.org Copyright Notification No part may be reproduced except as authorized by written permission. Th

6、e copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks curr

7、ently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 101 315 V4.1.1 (2003-11) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 3 Defini

8、tions and abbreviations.5 3.1 Definitions5 3.2 Abbreviations .7 4 Introduction 8 5 Solutions offered by TIPHON8 5.1 Introduction 8 5.2 Access Control (AC) 8 5.3 Protocol interworking.9 5.4 Mobility9 5.5 Lawful Interception (LI).10 6 Creation of services from service capabilities10 6.1 Method overvie

9、w10 6.1.1 TIPHON Service capabilities10 6.2 Example of the simple call service.11 6.2.1 Operation invocation sequence for the example Call11 6.3 Example call forwarding on busy service.13 6.3.1 Operation invocation sequence for CFB service activation13 6.3.2 Operation invocation sequence for CFB ser

10、vice.13 6.3.3 Operation invocation sequence for CFB service deactivation 16 6.4 Example Call Completion on No Reply (CCNR) service 16 6.4.1 Operation invocation sequence for the CCNR service16 History 19 ETSI ETSI TS 101 315 V4.1.1 (2003-11) 4 Intellectual Property Rights IPRs essential or potential

11、ly essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPR

12、s notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaran

13、tee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Project Telecommunications and Int

14、ernet Protocol Harmonization Over Networks (TIPHON). ETSI ETSI TS 101 315 V4.1.1 (2003-11) 5 1 Scope The present document specifies how the service capabilities as defined in TS 101 878 1 can be used to synthesize examples of TIPHON simple call, call diversion on busy and call completion on no reply

15、. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subseq

16、uent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ETSI TS 101 878 (V4.1.1): “Telecommunications and Internet Protocol H

17、armonization Over Networks (TIPHON) Release 4; Service Capability Definition; Service Capabilities for TIPHON Release 4“. 2 ETSI TS 101 314 (V4.1.1): “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4; Abstract Architecture and Reference Points Definition; Netwo

18、rk Architecture and Reference Points“. 3 ETSI TS 101 882-1: “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4; Protocol Framework Definition; Part 1: Meta-protocol design rules, development method, and mapping guideline“. 4 ETSI TS 101 315 (V1.1.1): “Telecommun

19、ications and Internet Protocol Harmonization Over Networks (TIPHON) Release 3; Functional entities, information flow and reference point definitions; Guidelines for application of TIPHON functional architecture to inter-domain services“. 3 Definitions and abbreviations 3.1 Definitions For the purpos

20、es of the present document, the following terms and definitions apply: bearer: logical association of functional entities in an IP telephony application and transport network which creates an end to end media flow for no longer than the duration of a call domain: collection of physical or functional

21、 entities within an administrative domain which share a consistent set of policies and common technologies Domain Identifier (DID): globally unique identifier of a domain NOTE: Domain identifiers may be mapped to the IP Telephony Administrative Domain (ITAD) Numbers, registered by IANA and used by t

22、he TRIP Protocol. end-user: entity using the services of an IP telephony service provider or transport network operator end-user domain: collection of physical or functional entities under the control of an end-user which share a consistent set of policies and common technologies ETSI ETSI TS 101 31

23、5 V4.1.1 (2003-11) 6 functional entity: entity in a system that performs a specific set of functions Functional Group (FG): collection of functional entities within a domain NOTE: In TIPHON systems functional groups are used to structure the necessary functionality to offer IP telephony services acr

24、oss domains. gateway functional group: functional group containing the functionality of a network functional group also the functionality necessary to connect calls to the SCN NOTE: Gateway functional groups may be classified as originating or terminating based upon their location within the topolog

25、y of a specified call. home network functional group: functional group, which is aware of the service application subscribed to by the end-user NOTE: Home network functional groups may be classified as originating or terminating based upon their location within the topology of a specified call. inte

26、rmediate (transit) network functional group: functional group connecting the serving network functional group to the home network functional group NOTE: The intermediate network functional grouping is only present when the serving network functional grouping and the home network functional grouping

27、are not directly connected. information flow: interaction between a communicating pair of functional entities interconnection function: functional entity connecting two networks having differing administrative policy such as Quality of Service (QoS) or addressing policy but employing the same signal

28、ling protocol, and transport technology, at the point of interconnect interface: shared boundary between two communicating systems, devices or equipment IP network: packet transport network comprising one or more transport domains each employing the IP protocol IP telephony: any telephony related se

29、rvice that is supported on a managed IP network IP telephony service provider: service provider who offers IP telephony services NOTE: The same business entity may act as both a transport network operator and an IP telephony service provider. network functional group: functional group containing the

30、 functionality required to establish a call between two terminals, a gateway and a terminal, or two gateways NOTE: network functional groups may be classified as originating or terminating based upon their location within the topology of a specified call. packet flow/transport flow: stream of packet

31、s of the same type identified by common address and port numbers NOTE: The stream may contain either signalling information or content description together with media information. protocol: set of semantics, syntax and procedures, which govern the exchange of information across an interface referenc

32、e point: conceptual point at the conjunction of two communicating functional entities service domain: collection of physical or functional entities offering IP telephony services under the control of an IP telephony service provider which share a consistent set of policies and common technologies se

33、rving network functional group: functional group that enables terminal functional groups to connect to an IP telephony service provide ETSI ETSI TS 101 315 V4.1.1 (2003-11) 7 Switched Circuit Network (SCN): telecommunications network, e.g. Public Switched Telephone Network (PSTN), Integrated Service

34、s Digital Network (ISDN), and General System for Mobile communications (GSM), that uses circuit-switched technologies for the support of voice calls NOTE: The SCN may be a public network or a private network. terminal: endpoint within the user equipment on which signalling and media flows originate

35、and/or terminate terminal functional group: functional group representing all the IP telephony functionality within an end-users terminal NOTE: Terminal functional groups may be classified as originating or terminating based upon their location within the topology of a specified call. ticket: obtain

36、ed through the registration session, when used in a call it provides the terminal/user with a means to show a valid registration exists transport domain: collection of transport resources sharing a common set of policies, QoS mechanisms and transport technologies under the control of a transport net

37、work operator transport function: functional entity representing the collection of transport resources within a transport domain which are capable of control by a transport resource manager transport network: collection of transport resources, which provide IP transport functionality transport netwo

38、rk operator: business entity operating a transport network transport policy entity: functional entity that maintains the policies of a transport domain Transport Resource Manager (TRM): functional entity that applies a set of policies and mechanisms to a set of transport resources to ensure that tho

39、se resources are allocated such that they are sufficient to enable transport flows with QoS guarantees across the domain of control of the TRM user equipment: equipment under the control of an end-user user profile: service specific information about a user of a service application 3.2 Abbreviations

40、 For the purposes of the present document, the following abbreviations apply: AC Access Control AP Application Plane BC Bearer Control CC Call Control CCNR Call Completion on No Reply CFB Call Forwarding on Busy DID Domain IDentifier GSM General System for Mobile communications IANA Internet Assigne

41、d Numbers Authority ICF InterConnect Function IP Internet ProtocolISDN Integrated Service Digital Network ITAD IP Telephony Administrative Domain LI Lawful Interception MC Media Control NGN Next Generation Networks PSTN Public Switched Telephony Network QoS Quality of Service QoSM Quality of Service

42、 Management QoSP Quality of Service Policy SC Service Control SCN Switched Circuit Network SpoA Service point of Attachment ETSI ETSI TS 101 315 V4.1.1 (2003-11) 8 SREG Service network REGistration function TRIP Telephony Routing over IP Protocol TRM Transport Resource Manager 4 Introduction The TIP

43、HON project does not specify standards for services (including supplementary services) but rather standardizes a set of root capabilities termed service capabilities. The purpose of the present document is to link the use of service capabilities as building blocks to the more familiar language of se

44、rvices. The development picture used in TIPHON is shown in figure 1. The area shaded in yellow identifies those areas which are subject to standardization, i.e. for which TSs, ESs, and ENs will be developed. The present document shows by example how a small set of services is built from the suite of

45、 service capabilities with a view to show that the set of service capabilities is sufficient to allow service providers to build their services. Desired Services Service Capabilities ImplementationService Deployment Protocols Architecture RequirementsFigure 1: Standardization map of TIPHON 5 Solutio

46、ns offered by TIPHON 5.1 Introduction The service capabilities of TIPHON defined in TS 101 878 1 offer the capability to build a large number of services. Existing services may be emulated using the service capabilities, and new services may be synthesized from them. The following clauses offer some

47、 examples of the form of services that may be offered using TIPHON. 5.2 Access Control (AC) Access Control (AC) is the ability of a service provider to control the traffic utilizing its communications resources. This ability was inherent in the Circuit Switched Networks, where the access to network

48、resources could be restricted by the local switch. The access control may be applied for example, to ensure only authorized (e.g. paying) users have access to communications resources, to restrict the number of sessions to avoid congestion etc. Therefore, Access Control remains an important capabili

49、ty that should be supported in IP environment also. ETSI ETSI TS 101 315 V4.1.1 (2003-11) 9 TIPHON has developed an access control capability for IP environment based on its Registration and transport plane capabilities. The registration framework ensures that only authorized users have access to the requested services. Once authorized for a service, e.g. telephony, a user is provided with an authorization token which enables the user access to communications services. The access to transport resources is provided with the authorization of the application pla