1、 International Telecommunication Union ITU-T E.164TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1(06/2011) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation Numbering plan of the international telephone service The interna
2、tional public telecommunication numbering plan Amendment 1: Revised Annex A Clarification and explanation of the structure and function of international ITU-T E.164-numbers Recommendation ITU-T E.164 (2010) Amendment 1 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERV
3、ICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Administrations E.104E.119 General provisions concerning users E.120E.139 Operation of international telephone services E.140E.159 Numbering plan of the international telephone service E.160E
4、.169International routing plan E.170E.179 Tones in national signalling systems E.180E.189 Numbering plan of the international telephone 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
5、 TELEPHONE SERVICE Charging in the international telephone service E.230E.249 Measuring and recording call durations for accounting purposes E.260E.269 UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON-TELEPHONY APPLICATIONS General E.300E.319 Phototelegraphy E.320E.329 ISDN PROVISIONS CONC
6、ERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.350E.399 NETWORK MANAGEMENT International service statistics E.400E.404 International network management E.405E.419 Checking the quality of the international telephone service E.420E.489 TRAFFIC ENGINEERING Measurement and recording of traffic E.4
7、90E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519 Determination of the 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.
8、699 ISDN traffic engineering E.700E.749 Mobile network traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATION SERVICES: CONCEPTS, MODELS, OBJECTIVES AND DEPENDABILITY PLANNING Terms and definitions related to the quality of telecommunication services E.800E.809 Models for telecommunication serv
9、ices E.810E.844 Objectives for quality of service and related concepts of telecommunication services E.845E.859 Use of quality of service objectives for planning of telecommunication networks E.860E.879 Field data collection and evaluation on the performance of equipment, networks and services E.880
10、E.899 OTHER E.900E.999 INTERNATIONAL OPERATION Numbering plan of the international telephone service E.1100E.1199 NETWORK MANAGEMENT International network management E.4100E.4199 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T E.164 (2010)/Amd.1 (06/2011) i Recomme
11、ndation ITU-T E.164 The international public telecommunication numbering plan Amendment 1 Revised Annex A Clarification and explanation of the structure and function of international ITU-T E.164-numbers Summary Replace the current clause A.8 of Annex A of Recommendation ITU-T E.164 with new text. Hi
12、story Edition Recommendation Approval Study Group 1.0 ITU-T E.164/I.331 1984-10-19 2.0 ITU-T E.164/I.331/Q.11 bis 1988-11-25 3.0 ITU-T E.164/I.331 1991-08-23 II 4.0 ITU-T E.164 1997-05-30 2 4.1 ITU-T E.164 Suppl. 2 1998-11-13 2 4.2 ITU-T E.164 Suppl. 3 2002-05-16 2 4.3 ITU-T E.164 Suppl. 4 2003-05-0
13、2 2 4.4 ITU-T E.164 Suppl. 5 2008-05-15 2 5.0 ITU-T E.164 2005-02-24 2 6.0 ITU-T E.164 2010-11-18 2 6.1 ITU-T E.164 Suppl. 1 1998-03-09 2 6.2 ITU-T E.164 Suppl. 2 2009-11-24 2 6.3 ITU-T E.164 Suppl. 3 2004-05-28 2 6.4 ITU-T E.164 Suppl. 3 Amd. 1 2009-11-24 2 6.5 ITU-T E.164 Suppl. 4 2004-05-28 2 6.6
14、 ITU-T E.164 Suppl. 4 Amd. 1 2009-11-24 2 6.7 ITU-T E.164 Suppl. 5 2009-11-24 2 6.8 ITU-T E.164 (2010) Amd. 1 2011-06-10 2 ii Rec. ITU-T E.164 (2010)/Amd.1 (06/2011) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications,
15、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 issuing Recommendations on them with a view to standardizing telecommunications on
16、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 topics. The approval of ITU-T Recommendations is covered by the procedure laid dow
17、n 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 expression “Administration“ is used for conciseness to indicate both a telecommunication
18、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 applicability) and compliance with the Recommendation is achieved when all of these mandatory
19、 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 Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws atten
20、tion 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 of claimed Intellectual Property Rights, whether asserted by ITU members or others
21、 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 Recommendation. However, implementers are cautioned that this may not represent t
22、he latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2011 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T E.164 (2010)/Amd.1
23、(06/2011) 1 Recommendation ITU-T E.164 The international public telecommunication numbering plan Amendment 1 Revised Annex A Clarification and explanation of the structure and function of international ITU-T E.164-numbers Clause A.8 Replace the current clause A.8 with the following text: A.8 Nationa
24、l-Only Numbers Introduction A.8.1 Any number within the responsibility of an Administration, which does not conform to the structure, length and uniqueness as defined in the main body of this Recommendation, is not an international E.164-number, and is termed a National-Only Number. A.8.2 National-O
25、nly Numbers may not be accessed when calls are originating from other national numbering plans, within the responsibility of a different Administration. For the purpose of this Annex, National-Only Numbers may include numbers that exist within Integrated Numbering Plans. A.8.3 Listed below are some
26、examples of National-Only Numbers. The list is not exhaustive. A.8.3.1 Short Codes Short Codes utilise significantly fewer digits than subscriber numbers in either their local, national or international format, and are valid for a specific purpose only. Examples of short codes are for access to a sp
27、ecific service or for indicating customer preferences, and may include for some countries, as allowed for by the National Numbering Plan: Emergency numbers Call-by-Call Carrier Selection National Helplines Countries with integrated numbering plans may have the same number allocated as an emergency n
28、umber within each country. The provision of short codes in open dialling plans may differ from a similar provision in a closed dialling plan. For example, the provision of a short code in an open dialling plan that utilises digits in the local network, taken from the SN field, may clash with digits
29、utilised to indicate an NDC if the same digits were to be utilised in an international originated call. In this case, the short code is considered to be a national-only number. 2 Rec. ITU-T E.164 (2010)/Amd.1 (06/2011) A.8.3.2 Special Use Numbers (SUNs) Special Use Numbers (SUNs) are numbers with si
30、gnificantly fewer digits than ordinary subscriber numbers, and which only exist in the country which provides it. The digits of SUNs could be identical to the leading digits of one or more subscriber numbers. The decision by which these numbers are implemented is a national matter. Since SUNs are si
31、gnificantly shorter than the subscriber numbers, they are within the limits of Table A.1. All incoming international calls to the number will fail because the CC + NDC + SUN and the leading digits of NDC + SN are ambiguous and therefore not international ITU-T E.164-numbers. In order to have certain
32、ty, digits following the SUN should not be assigned. Also, the leading digits of the SUN should not be assigned for any other purposes. The assignment has implications for Number Management and Utilisation and that is the responsibility of a national Administration. A.8.3.3 National (significant) nu
33、mbers with excessive length The national (significant) numbers (NDC + SN) as used nationally have differing lengths, and the longest national (significant) numbers violate the maximum given in Table A.1. The numbers have a hierarchical structure as follows. The structure is independent of the number
34、 length. Local level: SN. National level: NDC + SN. International level: CC + NDC + SN. Some of the national (significant) numbers (NDC + SN) and international numbers (CC +NDC + SN) are longer than the maximum given in Table A.1. These numbers are not international ITU-T E.164-numbers. The most sig
35、nificant part of the national (significant) numbers, truncated to the limits given in Table A.1, are international ITU-T E.164-numbers provided that they are unique. Printed in Switzerland Geneva, 2011 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff
36、 principles Series E Overall network operation, telephone service, 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 digi
37、tal network Series J Cable networks and transmission of television, 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
38、TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals and subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Ser
39、ies S Telegraph services terminal equipment 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
