1、 ETSI TR 102 974 V1.1.1 (2009-09)Technical Report Human Factors (HF);Telecommunications relay servicesETSI ETSI TR 102 974 V1.1.1 (2009-09) 2Reference DTR/HF-00120 Keywords relay, 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
2、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 document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic ver
3、sion 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 dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI S
4、ecretariat. 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 other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please
5、 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 written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunicatio
6、ns Standards Institute 2009. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered 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 Partne
7、rs. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 102 974 V1.1.1 (2009-09) 3Contents Intellectual Property Rights 5g3Forewor
8、d . 5g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 General . 9g34.1 Background 9g34.2 Possible relay services 9g34.3 Relay services in Europe 9g34.4 Relay servi
9、ces internationally . 10g34.5 Motivations for establishing relay services 10g34.6 Harmonization of communication systems 11g34.6.1 The need for harmonization 11g34.6.2 The European experience 11g34.6.3 Fragmentation caused by funding methods 11g34.6.4 Relay services and local harmonization 12g34.6.5
10、 Global harmonization . 12g34.7 Inclusion of relay service users in the number plan 12g35 Relay services in Europe 13g35.1 Austria 13g35.2 Belgium 13g35.3 Bulgaria 13g35.4 Cyprus 13g35.5 Czech Republic 13g35.6 Denmark . 13g35.7 Estonia 13g35.8 Finland 14g35.9 France . 14g35.10 Germany . 14g35.11 Gre
11、ece 15g35.12 Hungary 15g35.13 Iceland 15g35.14 Ireland 15g35.15 Italy 15g35.16 Latvia 15g35.17 Lithuania. 16g35.18 Luxembourg . 16g35.19 Malta 16g35.20 Netherlands. 16g35.21 Norway . 16g35.22 Poland . 16g35.23 Portugal 16g35.24 Romania . 16g35.25 Serbia and Montenegro 17g35.26 Slovakia 17g35.27 Slov
12、enia 17g35.28 Spain . 17g35.29 Sweden . 17g3ETSI ETSI TR 102 974 V1.1.1 (2009-09) 45.30 Switzerland . 18g35.31 United Kingdom . 18g36 Relay service internationally 19g36.1 General . 19g36.2 Australia . 19g36.3 Canada 19g36.4 New Zealand 19g36.5 USA 19g36.6 Multi-national . 20g37 Service offerings su
13、mmary for Europe 20g37.1 Text Relay Service . 20g37.2 Sign Relay Service . 20g37.3 Speech Relay Service . 21g37.4 Captioned Telephony Relay Service 21g37.5 Text-to-text relay services 21g38 Quality of Service (QoS) criteria 21g38.1 General . 21g38.2 Examples of QoS requirements 22g38.2.1 General 22g
14、38.2.2 Sweden 22g38.2.3 USA 22g38.3 Conclusions 22g3Annex A: Bibliography 23g3History 24g3ETSI ETSI TR 102 974 V1.1.1 (2009-09) 5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential
15、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 standards“, which is available from the ETSI Secretariat. Latest updates are
16、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 other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI We
17、b server) which are, or may be, or may become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Human Factors (HF). Introduction The present document is intended to set out the background to ES 202 975 i.5 the standard on Harmonized
18、 Relay Services, to describe the research involved and to provide general information on relay services derived during the research. Relay services in the sense described in these documents, are communication services that translate between different modes of communication. Relay Services are provid
19、ed mainly to enable people with communications related disabilities to participate on more equal terms in a society where telephony and electronic communications have become such an important part of life. ETSI ETSI TR 102 974 V1.1.1 (2009-09) 61 Scope The present document sets out significant backg
20、round information to the writing of ES 202 975 i.5 Harmonized relay services. It records the results of researches made during the preparation of the standard. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For
21、 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 cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referr
22、ing document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee the
23、ir long term validity. 2.1 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, the latest edition of the referenced document (including any amendments
24、) 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 references, the latest version of the referenced document (including any a
25、mendments) applies. i.1 BT SIN 359: “BT TextDirect Service description“. i.2 EICTA: “Position paper on eInclusion“, Brussels, 5 November 2008 . NOTE: See at http:/www.eicta.org/index.php?id=34 Definitions, abbreviations and symbols“. i.4 ETSI EG 202 320: “Human Factors (HF); Duplex Universal Speech
26、and Text (DUST) communications“. i.5 ETSI ES 202 975: “Human Factors (HF); Harmonized relay services“. i.6 ETSI TR 101 806: “Human Factors (HF); Guidelines for Telecommunication Relay Services for Text Telephones“. i.7 IETF RFC 3261: “Session Initiation Protocol (SIP)“. ETSI ETSI TR 102 974 V1.1.1 (
27、2009-09) 7i.8 IETF RFC 4103: “RTP payload for text conversation“. i.9 ITU-T Recommendation F.703: “Multimedia conversational services“. i.10 ITU-T Recommendation H.323: “Packet-based multimedia communications systems“. i.11 ITU-T Recommendation T.140: “Protocol for multimedia application; Text conve
28、rsation“. i.12 ITU-T Recommendation V.18: “Operational and interworking requirements for modems operating in the text telephone mode“. i.13 ITU-T Recommendation V.23: “600/1200-baud modem standardized for use in the general switched telephone network“. i.14 NFTH: “Nordic guidelines for Telecommunica
29、tions relay services“. i.15 TIA-825-A: “ A Frequency Shift Keyed Modem for Use on the Public Switched Telephone Network“. i.16 FCC 47 CFR 64.601-606: “TRS Rules. FCC USA, The set of regulations that form the basis of the relay services in USA. It is amended when new details take effect“. NOTE: See a
30、t http:/www.fcc.gov/cgb/dro/4regs.html. i.17 FCC 08-151A1 E911: “Requirements for IP-Enabled Service Providers“, June 2008. NOTE: See at http:/hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-151A1.pdf i.18 ITU-T Recommendation V.21: “300 bits per second duplex modem standardized for use in the gen
31、eral switched telephone network“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in EG 201 013 i.3 and the following apply: automatic relay service: service that enables a conversation between two terminals using different co
32、mmunication modes by providing the facility of automatic conversion between the two modes in substantially real time captioned telephony: service that assists a deaf or hard of hearing user in a spoken dialogue by providing text captions translating one direction of the conversation NOTE: The servic
33、e is usually provided via the Internet on a computer associated with the telephone being used. lip-reading relay service: service that enables lip-readers and voice telephone users to interact by providing conversion between the two modes of communication in substantially real time N NOTE: This conv
34、ersion is normally provided by a human operator who is a lip-speaker. operator: person whose prime task is to provide assistance and support to users (also known as an “attendant“) relay service: telecommunications service that enables users of different modes of communication to interact by providi
35、ng conversion between the modes of communication sign relay service: service (often known as a video relay service) that enables sign language users and voice telephone users to interact by providing conversion between the two modes of communication in substantially real time NOTE: This conversion i
36、s normally provided by a human operator. speech to speech relay service: telecommunications service that enables speech impaired telephone users and other users to interact by providing skilled assistance between them NOTE: This assistance is provided by a specially trained operator. ETSI ETSI TR 10
37、2 974 V1.1.1 (2009-09) 8text relay service: telecommunications service that enables text telephone users and voice telephone users to interact by providing conversion between the two modes of communication in substantially real time NOTE: This conversion is normally provided by a human operator. tex
38、t telephone: terminal offering text telephony functions, either as a stand-alone unit or as an addition to a voice telephone or as an application in a multi-function computer based terminal text telephony: telecommunications facility offering real time text conversation through telecommunication net
39、works. Text telephony may be combined with voice telephony NOTE: See EG 201 013 i.3. text to text service: telecommunications service that enables two text telephone users to interact by providing any necessary protocol conversion between the two text telephones in substantially real time NOTE: This
40、 conversion is normally provided automatically. total conversation: audiovisual conversation service providing bidirectional symmetric real-time transfer of motion video, text and voice between users in two or more locations NOTE: See EG 202 320 i.4 and ITU-T Recommendation F.703 i.9. V.18 protocols
41、: protocols in accordance with ITU-T Recommendation V.18 i.12 NOTE: The text telephones supported by V.18 are EDT, 5-bit (or Baudot), DTMF, V.21, V.23, Bell 103 and V.18 based devices. videophone relay service: service synonymous with sign relay service that enables deaf videophone signers and voice
42、 telephone users to interact by providing conversion between the two modes of communication in substantially real time NOTE: This conversion is normally provided by a human operator. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: DTMF Dual Tone Multi F
43、requency EDT European Deaf telephone EICTA European Information and Communications Technology Association FCC Federal Communications Commission (USA) GSM Global System for Mobile communication HCO Hearing Carry Over QoS Quality of Service RNID Royal National Institute for Deaf people SIP Session Ini
44、tiation Protocol SMS Short Message Service TRS Telecommunication Relay Service VCO Voice Carry Over VRS Video Relay Service NOTE: Referred to as sign relay service in the present document. ETSI ETSI TR 102 974 V1.1.1 (2009-09) 94 General 4.1 Background A relay service in the sense described in the p
45、resent document enables users of different modes of communication to interact by providing conversion between differing modes of communication. The primary motivation is to enable people with disabilities which influence their capability to use a voice telephone to have communication with voice tele
46、phone users and users of other types of communication than they have themselves. Relay services are commonly established as government enabled or government mandated services because of the evident economical and social value in fulfilling policies for the provision of equal opportunities for all in
47、 the field of communications. The present document records the background to and research undertaken during the writing of ES 202 975 i.5, the ETSI standard for Harmonized Relay Services. This standard was originally derived from TR 101 806 i.6, Guidelines for Telecommunications relay services for t
48、ext telephones which dealt mainly with text telephones and recommended very high performance targets based upon the best available in the world. The present document in its turn was largely based on the Nordic guidelines for Telecommunications relay services i.14. The primary aim of the new standard
49、 was to update the original technical report in the light of new opportunities in telecommunications, setting standards for new types of relay service that were not envisioned when the original report was written. Secondly it was necessary to take on board the changes in the telecommunications environment. When the report was first written it was common for a single national operator to provide both the network and the relay service. Nowadays the network and the service provision are often run by different entiti
