1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T E.164.3TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (09/2001) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation Numbering plan of the international telephone service Principles, criteria
2、 and procedures for the assignment and reclamation of E.164 country codes and associated identification codes for groups of countries ITU-T Recommendation E.164.3 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION
3、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.169 International routing plan E.170E.179 Tones in nati
4、onal 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 TELEPHONE SERVICE Charging in the international teleph
5、one 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 CONCERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.35
6、0E.399 NETWORK MANAGEMENT International service statistics E.400E.409 International network management E.410E.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
7、 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.699 ISDN traffic engineering E.700E.749 Mobile network
8、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 services E.810E.844 Objectives for quality of service and r
9、elated 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.880E.899 For further details, please refer to the list of
10、ITU-T Recommendations. ITU-T Rec. E.164.3 (09/2001) i ITU-T Recommendation E.164.3 Principles, criteria and procedures for the assignment and reclamation of E.164 country codes and associated identification codes for groups of countries Summary This Recommendation describes the principles, criteria
11、and procedures for the assignment and reclamation of resources within a shared E.164 Country Code for Groups of Countries. These shared Country Codes coexist with all other E.164-based Country Codes assigned by ITU-T. The resource of the shared Country Code consists of a Country Code and a Group Ide
12、ntification Code (CC + GIC) and provides the capability for a Group of Countries to provide telecommunication services within the Group of Countries. TSB is responsible for the assignment of the CC + GIC. Source ITU-T Recommendation E.164.3 was prepared by ITU-T Study Group 2 (2001-2004) and approve
13、d under the WTSA Resolution 1 procedure on 14 September 2001. History This version is the first issue of ITU-T Rec. E.164.3. ii ITU-T Rec. E.164.3 (09/2001) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU T
14、elecommunication 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 a worldwide basis. The World Telecommunication Standardizati
15、on 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 down in WTSA Resolution 1. In some areas of information technol
16、ogy 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 administration and a recognized operating agency. INTELLECTU
17、AL 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 of claimed Intellectual Property Rights, whether
18、 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 Recommendation. However, implementors are cauti
19、oned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2003 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. E.164.3 (09/2001)
20、 iii CONTENTS Page 1 Introduction 1 2 Scope 1 3 References. 1 4 Definitions 1 5 Abbreviations 2 6 Resource format 2 7 General 2 8 Assignment principles 3 9 Criteria for assignment . 3 10 Procedures for assignment 4 11 Criteria and procedures for changing the composition of the GoC 4 12 Criteria and
21、procedures for resource reclamation. 5 13 Appeals and reconsideration process 5 13.1 Appeal to TSB 5 13.2 Reconsideration by the appropriate Study Group 5 ITU-T Rec. E.164.3 (09/2001) 1 ITU-T Recommendation E.164.3 Principles, criteria and procedures for the assignment and reclamation of E.164 count
22、ry codes and associated identification codes for groups of countries 1 Introduction ITU-T has determined the allocation of a shared E.164 Country Code(s) for use by a Group of Countries (GoC). This Recommendation defines the format and the use of this shared numbering resource as well as the princip
23、les, criteria and procedures for its assignment and reclamation. 2 Scope This Recommendation details the principles, criteria and procedures for the assignment and reclamation of E.164 Country Codes (CCs) and associated Group Identification Codes (GICs) for Groups of Countries. These shared Country
24、Codes coexist with existing geographic Country Codes. The shared codes are not geographic and provide the capability for a Group of Countries (GoC) to provide telecommunication services by the use of a single CC + GIC. 3 References The following ITU-T Recommendations and other references contain pro
25、visions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possi
26、bility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recomme
27、ndation. ITU-T Recommendation E.164 (1997), The international public telecommunication numbering plan. ITU-T Recommendation E.164.2 (2001), E.164 numbering resources for trials. ITU-T Recommendation E.190 (1997), Principles and responsibilities for the management, assignment and reclamation of E-Ser
28、ies international numbering resources. 4 Definitions This Recommendation defines the following terms: 4.1 applicant: All the Administrations who sign the written application for initial assignment of the resource. 4.2 assignee: All the Administrations of the countries within a GoC having one or more
29、 CC + GIC assigned to them. 4.3 Group Identification Code (GIC): A one-digit Identification Code assigned to a GoC. 4.4 Group Identification Code Administrator (GICA): The organization entrusted by the assignee with the administration and management of the numbering resource behind a specific CC + G
30、IC. 4.5 Group of Countries (GoC): Several countries sharing the same CC + GIC. This could include geographic areas as referred to in ITU-T Rec. E.164. 2 ITU-T Rec. E.164.3 (09/2001) 5 Abbreviations This Recommendation uses the following abbreviations: CC Country Code GIC Group Identification Code GI
31、CA Group Identification Code Administrator GoC Group of Countries 6 Resource format Figure 1 shows the international public telecommunication number for shared Country Codes for a GoC. E164.3_6CC GIC SN3 digits 1 digitMax 15 digitsInternational public telecommunicationnumber for a GoCMax 12 digitsMa
32、x 11 digitsNOTE National and international prefixes are not part of the international publictelecommunication number for shared Country Codes.CC Country Code that is sharedGIC Group Identification CodeGoC Group of CountriesSN Subscriber NumberFigure 1/E.164.3 International public telecommunication n
33、umber for shared country codes for a GoC 7 General 7.1 The principles and responsibilities for resource management, assignment and reclamation, as defined in ITU-T Rec. E.190, should also be conformed to. 7.2 Applications for the assignment of E.164 Country Codes and GIC are to be considered on an i
34、ndividual basis and on their own merits. 7.3 TSB maintains the right, at any time during the application process, to request from the Applicant additional information considered necessary to validate an application. 7.4 TSB reserves the right to audit: the information provided in the application; th
35、e use of existing numbering resources if and when applying for supplementary resources; the assigned numbering resources if it is suspected that they are not being utilized in conformance with the application. 7.5 The assignee needs to return the assigned numbering resource if it is no longer being
36、utilized in conformance with the assignment criteria. ITU-T Rec. E.164.3 (09/2001) 3 8 Assignment principles 8.1 Reservation of a CC + GIC is not authorized. 8.2 Applicants who wish to trial a new service should request the temporary assignment of a shared Country Code for trials per ITU-T Rec. E.16
37、4.2. 8.3 Countries within a GoC need not be geographically contiguous. 8.4 The applicants and assignees of a specific CC + GIC are the Administrations of all the countries in the associated GoC. The Administration of a country that joins an existing GoC shares the assignment of the CC + GIC with all
38、 its assignee responsibilities delineated in this Recommendation. Similarly, the Administration of a country that withdraws from an existing GoC terminates its assignee responsibilities. 8.5 A subsequent CC + GIC can be assigned to the same GoC in the event of exhaust. 8.6 There is no limit to the n
39、umber of GoCs a country may participate in. 8.7 The services offered through a CC + GIC are not to duplicate global services for which E.164 Country Codes have been assigned. 8.8 In all cases, the CC is 3 digits in length and the GIC is 1 digit in length. 8.9 The number of digits following the GIC s
40、hould be a minimum of nine digits including service indicator(s) and subscriber numbers. Any exception to the minimum of nine digits should be documented in the application and subject to approval by TSB. Following the CC + GIC, a maximum of ten per cent of the total capacity of the numbering resour
41、ce is permitted to be shorter than nine digits in length. 8.10 The format and quantity of the digits following the GIC should provide adequate capacity to accommodate current and future requirements. 9 Criteria for assignment 9.1 TSB receives a written application for the assignment of a CC + GIC jo
42、intly from all the Administrations (the Applicant) of the countries in the initial associated GoC. Such an application should, by its filing, describe the services to be offered by the CC + GIC. Each Administration of the countries applying for the CC + GIC needs to be specifically identified and th
43、e signature of an authorized representative of each Administration needs to be a part of the application. 9.2 The GoC on whose behalf the application is made is to consist of a minimum of four countries. 9.3 If only one service is to be offered through the CC + GIC, the Applicant affirms that this s
44、ervice is to be accessible (i.e. CC + GIC is open and routed from any Applicant country from at least one service provider) from all countries forming the GoC. If multiple services are to be offered through the CC + GIC, the Applicant affirms that every service is to be accessible from at least a ma
45、jority of the countries and at least one service is to be accessible from every country. The Applicant affirms that CC + GIC and services are to be made accessible in the countries of the initial associated GoC within three years of assignment.19.4 The Applicant provides evidence that it has selecte
46、d a Group Identification Code Administrator (GICA) and provides contact information to TSB for the GICA. _ 1Since the code assignment 388-3 was made to ETNS prior to the development of these guidelines, the following exception to criteria in 9.3 applies to ETNS: The applicant affirms that at least o
47、ne service will be accessible from at least four (4) countries by February 2004. 4 ITU-T Rec. E.164.3 (09/2001) 9.5 The Applicant provides a description of its numbering plan, including the length of any service indicator(s) and subscriber numbers. 9.6 The Applicant affirms that services offered by
48、its CC + GIC are not to duplicate Global Services for which Country Codes for Global Services have been assigned. 9.7 The Applicant affirms that the CC + GIC is to be used for the provision of public correspondence services. 9.8 The Applicant affirms that there are to be no restrictions by the GoC o
49、n the ability of calling users outside of the GoC to access the services provided through the CC + GIC. 9.9 On an application for an additional CC + GIC, to an existing GoC, in addition to the above, the Applicant needs to provide information substantiating the imminent exhaust (i.e. 70 per cent utilization with the projection of a total exhaust in two years) of the currently assigned CC + GIC and supporting the efficient format and assignment of the digits following the CC + GIC. 10 Procedures for assignment 10.1 The Appl
