1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU E.195 (0912 O0 O) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation - Numbering plan of the international telephone service ITU-T Internationa
2、l numbering resource adm i n istra t i on ITU-T Recommendation E. 195 (Formerly CCITT Recommendation) ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions General provisions concerning Administrations Gen
3、eral provisions concerning users Operation of international telephone services Numbering plan of the international telephone service International routing plan Tones in national signalling systems I I_ Numbering plan of the international telephone service Maritime mobile service and public land mobi
4、le service OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service Measuring and recording call durations for accounting purposes UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON- TELEPHONY APPLICATIO
5、NS General Phototelegraphy ISDN PROVISIONS CONCERNING USERS INTERNATIONAL ROUTING PLAN NETWORK MANAGEMENT International service statistics International network management Checking the quality of the international telephone service Measurement and recording of traffic Forecasting of trafic Determina
6、tion of the number of circuits in manual operation Determination of the number of circuits in automatic and semi-automatic operation Grade of service Definitions Trafic engineering for IP-networks ISDN trafic engineering Mobile network trafic engineering TRAFFIC ENGINEERING QUALITY OF TELECOMMUNICAT
7、ION SERVICES: CONCEPTS, MODELS, OBJECTIVES AND DEPENDABILITY PLANNRVG Terms and definitions related to the quality of telecommunication services Models for telecommunication services Objectives for quality of service and related concepts of telecommunication services Use of quality of service object
8、ives for planning of telecommunication networks Field data collection and evaluation on the performance of equipment, networks and services E. 100-E. 103 E.104E.119 E.120-E.139 E. 140-E. 159 E. 160-E.169 E.170-E.179 E.180-E.189 6.190-E.199 E.200-E.229 E.230-E.249 E.260-E.269 E.300-E.319 E.320-E.329
9、E.330-E.349 E.350-E.399 E.400-E.409 E.410-E.419 E.420-E.489 E.490-E.505 E. 506E. 509 E.510-E.519 E.520-E.539 E.540-E.599 E.600-E.649 E.650-E.699 E.700-E.749 E.750-E.799 E.800-E.809 E.8 10-E.844 E.860-E.879 E.880-E.899 E.845-E.859 For further details, please re$er to the list of ITD-T Recommendations
10、. ITU-T Recommendation E.195 ITU-T International Numbering Resource Administration Summary This ITU-T Recommendation proposes the formation and functions/responsibilities of the centralized ITU Numbering Administration Group (ITU-NAG) within TSB. It provides recommended procedures to ensure that all
11、 requests for resources are handled in an impartial, uniform, consistent, and effective manner. Source ITU-T Recommendation E. 195 was prepared by ITU-T Study Group 2 (1 997-2000) and approved by the World Telecommunication Standardization Assembly (Montreal, 27 September - 6 October 2000). ITU-T E.
12、195 (09/2000) 1 FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tarif
13、f questions and 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 Recommen
14、dations 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 technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommenda
15、tion, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a
16、 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 outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU
17、had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o ITU 2001 All r
18、ights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fi-om the ITU. 11 ITU-T E.195 (09/2000) CONTENTS 1 2 3 4 5 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6
19、.11 6.12 6.13 7 7.1 7.2 8 Introduction . Scope . References . Definitions Abbreviations ITU-NAG Functions and Responsibilities Consultation with relevant Study Groups . Information reporting and dissemination Publication of decisions on a regular basis 6.3.2 Additional report requests . Audits of Re
20、source Administration Ensure availability of resources National Administration Requirements Study Group Meeting Participation Access to Support Staff . Respond to Information Requests . Applicant Assistance . Appeals Procedures . Funding Reporting Records Audits of ITU-NAG and the Resource Assignees
21、 Administration and Registration of ITU-T Numbering Resources . 6.3.1 Performance Measures Records Audits of ITU-NAG by the appropriate Study Groups . Records Audits of the resource assignees by ITU-NAG . Appeal Procedures Annex A . List of ITU-T Global Numbering Resources . ITU-T E.195 (09/2000) Pa
22、ge 1 1 1 2 2 3 3 4 4 4 5 5 5 5 5 5 5 6 6 6 6 7 8 . 111 Introduction The evolution of global telecommunications in the areas of services, capabilities, and technologies often results in the need for new ITU-T Numbering Resources (hereafter “resource“ or “resources“) that serve such functions as numbe
23、ring, naming, addressing, routing, and identification. Although varying in format and function, the one common aspect of these resources is their need for an impartial, uniform, consistent, and effective centralized administration. For those resources under the purview of ITU-T, TSB has, and will co
24、ntinue, to perform the function of centralized administrator/registrar. ITU-T Resolution 20 designates ITU-T Study Group 2 (SG 2) as the lead Study Group (SG) with regard to the Administration of ITU-T Numbering Resources. SG 2s responsibilities, under this mandate, include overseeing the administra
25、tion of all such resources in order to ensure uniformity and equity in their assignment, despite the technical responsibilities for these resources being dispersed across multiple SGs. It is in this context that this Recommendation is developed and maintained by SG2. Should this responsibility be tr
26、ansferred to another SG in the future, this Recommendation will become the responsibility of that SG and need not be revised just to reflect that transfer of responsibility. This Recommendation is based on number management and organizational practices used in many countries and is intended to assis
27、t TSB in its function as the centralized administrator of numbering resources, not to direct TSB with regard to how it should organize and perform this function. TSB should use this Recommendation as a resource document when establishing, organizing and managing the centralized administrative functi
28、on. iv ITU-T E.195 (09/2000) ITU-T Recommendation E.195 ITU-T International Numbering Resource Administration (Montreal, 2000) 1 Introduction The evolution of global telecommunications in the areas of services, capabilities, and technologies often results in the need for new ITU-T Numbering Resource
29、s (hereafter “resource“ or “resources“) that serve such functions as numbering, naming, addressing, routing, and identification. Although varying in format and function, the one common aspect of these resources is their need for an impartial, uniform, consistent, and effective centralized administra
30、tion. For those resources under the purview of ITU-T, TSB has, and will continue, to perform the function of centralized administrator/registrar. ITU-T Resolution 20 designates ITU-T Study Group 2 (SG 2) as the lead Study Group (SG) with regard to the Administration of ITU-T Numbering Resources. SG
31、2s responsibilities, under this mandate, include oversight of the administration of all such resources in order to ensure uniformity and equity in their assignment, despite the technical responsibilities for these resources being dispersed across multiple SGs. It is in this context that this Recomme
32、ndation is developed and maintained by SG2. Should this responsibility be transferred to another SG in the future, this Recommendation will become the responsibility of that SG and need not be revised just to reflect that transfer of responsibility. This Recommendation is based on number management
33、and organizational practices used in many countries and is intended to assist TSB in its function as the centralized administrator of numbering resources, not to direct TSB with regard to how it should organize and perform this function. TSB should use this Recommendation as a resource document when
34、 establishing, organizing and managing the centralized administrative function. 2 Scope This Recommendation proposes the formation and functions/responsibilities of the centralized ITU Numbering Administration Group (ITU-NAG) within TSB. It provides recommended procedures to ensure that all requests
35、 for resources are handled in an impartial, uniform, consistent, and effective manner. 3 References The following ITU-T Recommendations and other references contain provisions which, through references in this text, constitute provisions of this Recommendation. At the time of publication the edition
36、s indicated were valid. All Recommendations and other references are subject to revision. All users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendation and other references listed below. A list of the current valid
37、ITU-T Recommendations is regularly published. - ITU-T Recommendation E. 164 (1997), The international public telecommunications numbering plan. ITU-T Recommendation E. 164.1 (1 998), Criteria and procedures for the reservation, assignment, and reclamation of E. 164 country codes and associated Ident
38、ijkation Codes - WS). ITU-T E.195 (09/2000) 1 ITU-T Recommendation E. 169.2 (2000), Application of Recommendation E. 164 numbering plan for universal international premium rate numbers for the international premium rate service. ITU-T Recommendation E. 169.3 (2000), Application of Recommendation E.
39、164 numbering plan for universal international shared cost numbers for international shared cost service. ITU-T Recommendation E. 190 (1 997), Principles and responsibilities for the management and assignment of E-series international numbering resources. ITU-T Recommendation E. 19 1 (2000), B-ISDN
40、addressing. ITU-T Recommendation X. 121 (2000), International numbering plan for public data networks. ITU-T Recommendation X.125 (1998), Procedure for the notzjkation of the assignment of international network identzjkation codes for public frame relay data networks and ATM networks numbered under
41、the E.164 numberingplan. 4 Definitions This ITU-T Recommendation defines the following terms: 4.1 administration: The function that monitors and reports the status/adequacy of numbering resources as well as identifies and offers proposed resolutions for issues regarding resource reservation, assignm
42、ent, and reclamation procedures. For the purposes of this Recommendation, this function is performed by ITU-NAG. NOTE - This “administration“ should not be confused with the national “Administration“ of each country. 4.2 administrator: The entity charged with the administration of numbering resource
43、s. For the purpose of this Recommendation, the administrator is ITU-NAG. 4.3 management: The function developing methods to ensure that there are adequate resources available for appropriate uses as defined in ITU-T Recommendations. For the purpose of this Recommendation, the appropriate SG, in cons
44、ultation with ITU-NAG, performs this function. 4.4 resource: Codes or numbers used in the provisioning of public services or the operation of the networks offering such services and defined in an ITU-T Recommendation. 4.5 registration: The function of reserving, assigning, reclaiming, and recording
45、resources in accordance with ITU-T Recommendations. For the purpose of this Recommendation, this function is performed by ITU-NAG. 4.6 registrar: The entity charged with the registration of numbering resources. For the purpose of this Recommendation, the Registrar is ITU-NAG. 5 Abbreviations This IT
46、U-T Recommendation uses the following abbreviations (excluding the annex): ITU-NAG International Telecommunication Union - Numbering Administration Group ITU-T International Telecommunication Union - Telecommunication Standardization Sector TSB Telecommunication Standardization Bureau Res. 20 SG Stu
47、dy Group TSAG Telecommunication Standardization Advisory Group Resolution No. 20, WTSC, Geneva, 1996 2 ITU-T E.195 (09/2000) 6 ITU-NAG Functions and Responsibilities This clause describes the recommended functions and responsibilities that should be routinely performed by ITU-NAG as the administrato
48、r of ITU-T numbering resources. The two primary responsibilities of ITU-NAG should be: - resource administration - support ITUs efforts to accommodate current and future numbering needs, and to provide advice relative to numbering issues for the resources administered by ITU-NAG (e.g. potential reso
49、urce exhaust); resource registration - assign and administer resources in an impartial, uniform, consistent, and effective manner consistent with ITU-T-developed Recommendations. The procedures by which ITU-NAG performs its functions and responsibilities are largely contained in the Recommendations specific to the resource being considered for reservation, assignment, registration, or reclamation, e.g. ITU-T Recommendations E. 164.1, E. 169.1, 4.708, X. 12 1, X. 125. Where such procedures do not exist or require change, ITU-NAG may propose new procedures or changes for consideration by the
