1、 ETSI SR 002 761 V1.1.1 (2008-09)Special Report User Group;Consideration for selecting suitable telecommunication services and for comparing and benchmarking different service offers from the users perspectiveETSI ETSI SR 002 761 V1.1.1 (2008-09) 2Reference DSR/USER-00023 Keywords interoperability,
2、user, service 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 Important notice Individual copies of the present
3、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 the Portable Document Format (PDF). In case of d
4、ispute, 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. Information on the current status of this and othe
5、r ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by
6、written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit
7、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 SR 002 761 V1.1.1 (2008-09) 3Contents Intellectual Property Rights 4 Foreword . 4 Introduction 4 1 Scope 5 2 References 5 2.1 Normative references . 6 2.2 Infor
8、mative references 6 3 Definitions and abbreviations . 7 3.1 Definitions 7 3.2 Abbreviations . 8 4 Overview 8 5 Identification of users needs 8 6 Interoperability issues in a multi-service/provider environment 9 7 Basic concept of telecommunication services 10 7.1 Telecommunications infrastructure 10
9、 7.2 Service generation 11 8 Collection and availability of needed information . 12 9 Useful references 12 Annex A: Process of selecting a service 15 History 16 ETSI ETSI SR 002 761 V1.1.1 (2008-09) 4Intellectual Property Rights IPRs essential or potentially essential to the present document may hav
10、e 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, IPRs notified to ETSI in respect of ETSI standa
11、rds“, 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 guarantee can be given as to the existence of othe
12、r 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 Special Report (SR) has been produced by ETSI User Group (USER). Introduction Guidance for users on the choice and comparison of tele
13、communication service offers is needed since due to the on-going migration from circuit-switched towards packet-switched networks and the deregulation of the telecommunication market, the user finds himself in a far more complex situation compared to the monolistic environment with standardized serv
14、ice offers. From a technical point of view the most important changes are that there will be in future all-purpose networks that are used to deliver all kind of services and that there will be a separation of transport and services. There will be no longer specific networks for dedicated services. A
15、lso there will a number of different service providers offering different services offered most probably based on different business models. The user might chose separate access (transport) network providers and services providers and also subscribe to several services in order to create his own ser
16、vice bundle that will fulfill his needs. Hence the user would be expected to have some basic knowledge on how the telecommunication infrastructure functions and what implications have to be considered. In the present document a structured overview is produced listing the implications having an influ
17、ence on the users ability to chose suitable telecommunication services and performing comparisons and benchmarks. The intention is to provide a basis for further work that could result into the elaboration of a methodology the can be applied by users to make an informed choice. ETSI ETSI SR 002 761
18、V1.1.1 (2008-09) 51 Scope The present document provides an overview on aspects that need to be considered by users when comparing various telecommunication service offers and selecting telecommunication service offers that fulfill their needs. Since for legacy telephone networks offering voice telep
19、hony service QoS aspects are well documented and QoS parameters for comparison of different service offers have already been elaborated, the focus of the present document lies on the emerging all-purpose networks based on IP. The present document was produced based on the following considerations: T
20、he user first needs to identify the services and service aspects that are relevant to him. The user needs to have a basic understanding of implications due to interoperability issues of networks and services in multi-provider environment (for both networks and services) of modern telecommunications
21、infrastructure. This stipulates that the user has to be aware of how a telecommunication service works and what the relationship between terminal equipment, network and service aspects (service elements) are. An important condition for this is the availability of complete and understandable informat
22、ion. A list of relevant information in standardization to assist further work on this matter is helpful (especially standards with performance and quality objectives for basic telecommunication services and network accesses). This information given in the present document is applicable to any kind o
23、f telecommunication service. The intention of the present document is to provide a source of information that can be used to elaborate on a methodology for guiding the user through the process of chosing, comparing and benchmarking suitable telecommunication services that fulfill his needs. 2 Refere
24、nces References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cas
25、es: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.et
26、si.org/Reference. For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain val
27、id for the expected life of the document. The reference shall include the method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of pub
28、lication ETSI cannot guarantee their long term validity. ETSI ETSI SR 002 761 V1.1.1 (2008-09) 62.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references
29、, the latest edition of the referenced document (including any amendments) applies. Not applicable. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific r
30、eferences, the latest version of the referenced document (including any amendments) applies. i.1 ETSI EG 201 219: “User requirements; Guidelines on the consideration of user requirements when managing the standardization process“. i.2 ITU-T Recommendation E.800: “Terms and definitions related to qua
31、lity of service and network performance including dependability“. i.3 ITU-T Recommendation G.1000: “Communications Quality of Service: A framework and definitions“. i.4 ITU-T Recommendation I.350: “General aspects of quality of service and network performance in digital networks, including ISDNs“. i
32、.5 ETSI EG 202 009-1: “User Group; Quality of telecom services; Part 1: Methodology for identification of parameters relevant to the Users“. i.6 ETSI EG 202 009-2: “User Group; Quality of telecom services; Part 2: User related parameters on a service specific basis“. i.7 ETSI TS 102 250-1: “Speech P
33、rocessing, Transmission and Quality Aspects (STQ); QoS aspects for popular services in GSM and 3G networks; Part 1: Identification of Quality of Service criteria“. i.8 ITU-T Recommendation E.802: “Framework and methodologies for the determination and application of QoS parameters“. i.9 ETSI EG 202 0
34、09-3: “User Group; Quality of telecom services; Part 3: Template for Service Level Agreements (SLA)“. i.10 ITU-T Recommendation E.801: “Framework for service quality agreement“. i.11 ETSI TR 102 521: “Speech Processing, Transmission and Quality aspects (STQ); Support to TC EMTEL for QoS and Transmis
35、sion Quality aspects for end-to-end services“. i.12 ETSI TR 102 430: “Speech Processing, Transmission and Quality Aspects (STQ); Basic Issues concerning the Quality of Speech over Packet Technology (both Internet and Next Generation Networks)“. i.13 ITU-T Recommendation E.360.1: “Framework for QoS r
36、outing and related traffic engineering methods for IP-, ATM-, and TDM-based multiservice networks“. i.14 ITU-T Recommendation E.470: “Operational considerations for QoS of voice over IP-based networks with PSTN-IP-PSTN architecture“. i.15 ITU-T Recommendation G.101: “The transmission plan“. i.16 ETS
37、I EG 201 769: “Speech Processing, Transmission and Quality Aspects (STQ); QoS parameter definitions and measurements; Parameters for voice telephony service required under the ONP Voice Telephony Directive 98/10/EC“. ETSI ETSI SR 002 761 V1.1.1 (2008-09) 7i.17 ETSI TR 102 126: “Speech Processing, Tr
38、ansmission and Quality Aspects (STQ); Implementation of QoS parameter measurements according to ETSI EG 201 769“. i.18 ETSI EG 202 057-1: “Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 1: General“. i.19 ETSI EG 202 057-2: “Sp
39、eech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony, Group 3 fax, modem data services and SMS“. i.20 ETSI EG 202 057-3: “Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definit
40、ions and measurements; Part 3: QoS parameters specific to Public Land Mobile Networks (PLMN)“. i.21 ETSI EG 202 057-4: “Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 4: Internet access“. i.22 ETSI TS 102 250-2: “Speech Proces
41、sing, Transmission and Quality Aspects (STQ); QoS aspects for popular services in GSM and 3G networks; Part 2: Definition of Quality of Service parameters and their computation“. i.23 ETSI EG 202 534: “Human Factors (HF); Guidelines for real-time person-to-person communication services“. i.24 ETSI T
42、R 102 535: “Human Factors (HF); Guidelines for real-time person-to-person communication services; Future requirements“. i.25 ETSI ETR 160: “Human Factors (HF); Human Factors aspects of multimedia telecommunications“. i.26 ETSI EG 202 086: “Speech Processing, Transmission and Quality Aspects (STQ); O
43、bjectives and principles for the transmission performance of multiple interconnected networks that aim to provide “traditional quality“ telephony services“. i.27 ITU-T Recommendation G.109: “Definition of categories of speech transmission quality“. i.28 ITU-T Recommendation G.1010: “End-user multime
44、dia QoS categories“. i.29 ITU-T Recommendation P.1010: “Fundamental voice transmission objectives for VoIP terminals and gateways“. i.30 ITU-T Recommendation Y.1541: “Network performance objectives for IP-based services“. i.31 ITU-T Recommendation Y.1542: “Framework for achieving end-to-end IP perfo
45、rmance objectives“. i.32 ITU-T Handbook on Quality of Service and Network Performance. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: interoperability: ability of two or more systems or applications to exchange inf
46、ormation and to mutually use the information that has been exchanged interconnectivity: circumstance that a network access or a service access enables a user to set-up calls to any other user that can be identified by a national or international numbering, naming and addressing resource ETSI ETSI SR
47、 002 761 V1.1.1 (2008-09) 8Quality of Service (QoS): collective effect of service performance which determines the degree of satisfaction of a user of the service NOTE 1: The quality of service is characterized by the combined aspects of service support performance, service operability performance,
48、serve ability performance, service security performance and other factors specific to each service. NOTE 2: The term “quality of service“ is not used to express a degree of excellence in a comparative sense nor is it used in a quantitative sense for technical evaluations. In these cases a qualifying
49、 adjective (modifier) should be used. NOTE 3: See ITU-T Recommendation E.800 i.2 and G.1000 i.3. NOTE 4: This may contain additional information. user: individuals, including consumers, or organizations using or requesting telecommunications services available on public or private networks NOTE 1: The user may or may not be the person who has subscribed to the provision of the service. Without any specific addition this word is used to identify the telecommunication user community in general, e
