1、 International Telecommunication Union ITU-T E.161.1TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (09/2008) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation Numbering plan of the international telephone service Guidelines to select
2、 Emergency Number for public telecommunications networks Recommendation ITU-T E.161.1 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Administrations E.104E.1
3、19 General provisions concerning users E.120E.139 Operation of international telephone services E.140E.159 Numbering plan of the international telephone service E.160E.169 International routing plan E.170E.179 Tones in national signalling systems E.180E.189 Numbering plan of the international teleph
4、one service E.190E.199 Maritime mobile service and public land mobile service E.200E.229 OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service E.230E.249 Measuring and recording call durations for accounting
5、purposes E.260E.269 UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON-TELEPHONY APPLICATIONS General E.300E.319 Phototelegraphy E.320E.329 ISDN PROVISIONS CONCERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.350E.399 NETWORK MANAGEMENT International service statistics E.400E.404 Interna
6、tional network management E.405E.419 Checking the quality of the international telephone service E.420E.489 TRAFFIC ENGINEERING Measurement and recording of traffic E.490E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519 Determination of th
7、e number of circuits in automatic and semi-automatic operation E.520E.539 Grade of service E.540E.599 Definitions E.600E.649 Traffic engineering for IP-networks E.650E.699 ISDN traffic engineering E.700E.749 Mobile network traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATION SERVICES: CONCEPT
8、S, MODELS, OBJECTIVES AND DEPENDABILITY PLANNING Terms and definitions related to the quality of telecommunication services E.800E.809 Models for telecommunication services E.810E.844 Objectives for quality of service and related concepts of telecommunication services E.845E.859 Use of quality of se
9、rvice objectives for planning of telecommunication networks E.860E.879 Field data collection and evaluation on the performance of equipment, networks and services E.880E.899 OTHER E.900E.999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T E.161.1 (09/2008) i Recomm
10、endation ITU-T E.161.1 Guidelines to select Emergency Number for public telecommunications networks Summary The purpose of Recommendation ITU-T E.161.1 is to provide guidance to help Member States who are in the process of selecting a single emergency number for the first time, or selecting a second
11、ary alternative emergency number for public telecommunications networks. Source Recommendation ITU-T E.161.1 was approved on 23 September 2008 by ITU-T Study Group 2 (2005-2008) under the WTSA Resolution 1 procedure. ii Rec. ITU-T E.161.1 (09/2008) FOREWORD The International Telecommunication Union
12、(ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and
13、issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these
14、 topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expres
15、sion “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperability or applicabili
16、ty) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Rec
17、ommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability
18、of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this
19、 Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2009 All rights reserved. No part of this publication may be reproduced, by any means whats
20、oever, without the prior written permission of ITU. Rec. ITU-T E.161.1 (09/2008) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation. 1 4 Abbreviations and acronyms 2 5 Single initial Emergency Number 2 6 Selection of a s
21、econd alternative Emergency Number. 2 7 Emergency Numbers for mobile networks. 2 7.1 PLMNs based on GSM/UMTS system 2 Bibliography. 3 Rec. ITU-T E.161.1 (09/2008) 1 Recommendation ITU-T E.161.1 Guidelines to select Emergency Number for public telecommunications networks 1 Scope This Recommendation i
22、s intended for use by Member States who are in the process of selecting: a) a single emergency number for the first time b) a secondary alternative emergency number. Either emergency number will be made available to users and subscribers, and therefore the mapping of these numbers to technology requ
23、irements is considered out of scope of this Recommendation. In the long run, this Recommendation will contribute to globally harmonized emergency numbers. 2 References None. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 emergency call
24、 b-ITU-T Q-Sup.47: A call requesting emergency services. A caller is given a fast and easy means of giving information about an emergency situation to the appropriate emergency organization (e.g., fire department, police, ambulance). Emergency calls will be routed to the emergency services in accord
25、ance with national regulations. 3.1.2 country b-ITU-T E.164-Sup.3: A specific country, a group of countries in an integrated numbering plan or a specific geographical area. 3.1.3 universal subscriber identity module (USIM) b-3GPP TR 21.905: An application residing on the UICC used for accessing serv
26、ices provided by mobile networks, which the application is able to register on with the appropriate security. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 emergency number: A non-E.164 number allocated in the national numbering plan to enable emerge
27、ncy calls. Normally, the emergency number is a short code. 3.2.2 short code: String of digits in the national numbering plan, as defined by the national Numbering Plan Administrator which can be used as a complete dialling sequence on public networks to access a specific type of service/network. The
28、 short code is referred to as a non-E.164 number, and its length is normally shorter than a subscriber number. 2 Rec. ITU-T E.161.1 (09/2008) 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: GSM Global System for Mobile communications IM IP Multimedia I
29、SIM IM Services Identity Module ME Mobile Equipment PLMN Public Land Mobile Network SIM Universal Subscriber Identity Module UICC Universal Integrated Circuit Card UMTS Universal Mobile Telecommunications System USIM Universal Subscriber Identity Module 5 Single initial Emergency Number A Member Sta
30、te that is planning to introduce an emergency number could use either 112 or 911, in adherence with applicable regulations concerning emergency numbers (e.g., the usage of 112 for EU Member States b-EU 91/396/ECC). 6 Selection of a second alternative Emergency Number A Member State that is planning
31、to introduce a second alternative emergency number could use either 112 or 911, or both, which should be routed to the existing emergency number. A second alternative emergency number facilitates, for example, emergency calling by travellers visiting the country. 7 Emergency Numbers for mobile netwo
32、rks This clause give examples of how emergency numbers are used in terminals and identity module cards (e.g., SIM) for different kinds of mobile networks (PLMNs). 7.1 PLMNs based on GSM/UMTS system For mobile equipment (ME) based on the GSM/UMTS system, there is a built-in recognition of the emergen
33、cy numbers 112 and 911. If the SIM/USIM/ISIM card is not present in the ME, then, in addition to 112 and 911, the following national numbers will act in a similar way as national emergency numbers: 000, 08, 110, 999, 118 and 119 b-3GPP TS 22.101. It will be left to the Member State to decide whether
34、 the public telecommunications network accept emergency calls without the SIM/USIM/ISIM. Rec. ITU-T E.161.1 (09/2008) 3 Bibliography b-ITU-T Q-Sup.47 ITU-T Q-series Recommendations Supplement 47 (2003), Emergency services for IMT-2000 networks Requirements for harmonization and convergence. b-ITU-T
35、E.164-Sup.3 Recommendation ITU-T E.164 Supplement 3 (2004), Operational and administrative issues associated with national implementations of the ENUM functions. b-EU 91/396/ECC EU Decision 91/396/EEC, Council Decision of 29 July 1991 on the introduction of a single European emergency call number. b
36、-CEPT T/SF 1 CEPT Recommendation T/SF 1 (The Hague 1972, revised at Puerto de la Cruz 1974, at Mlaga-Torremolinos 1975, at Stockholm 1976 and by correspondence 1990), Long term standardisation of national numbering plans. b-3GPP TR 21.905 3GPP TR 21.905 V8.0.0 (2007-03), Vocabulary for 3GPP specific
37、ations. b-3GPP TS 22.101 3GPP TS 22.101 V8.7.0 (2007-12), Service aspects, Service principles (Release 8). Printed in Switzerland Geneva, 2009 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, telephone s
38、ervice, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and transmission of tel
39、evision, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: internati
40、onal sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Telephone transmission quality, telephone installations, local line networks Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipm
41、ent Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
