1、 International Telecommunication Union ITU-T E.107TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (02/2007) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation General provisions concerning Administrations Emergency Telecommunications S
2、ervice (ETS) and interconnection framework for national implementations of ETS ITU-T Recommendation E.107 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Admi
3、nistrations 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 national signalling systems E.180E.189 Numbering plan of the
4、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 telephone service E.230E.249 Measuring and recording call durat
5、ions 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.350E.399 NETWORK MANAGEMENT International service statistic
6、s 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.490E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519
7、 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 traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATI
8、ON 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 related concepts of telecommunication services E.845E.859
9、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 OTHER E.900E.999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. E.107
10、(02/2007) i ITU-T Recommendation E.107 Emergency Telecommunications Service (ETS) and interconnection framework for national implementations of ETS Summary There is a potential for bilateral/multilateral agreement between cooperating countries/administrations to link their respective Emergency Telec
11、ommunications Service (ETS) systems. This Recommendation provides guidance that will enable telecommunications between one ETS national implementation (ENI) and another ENI, in addition to providing a description of ETS. Source ITU-T Recommendation E.107 was approved on 8 February 2007 by ITU-T Stud
12、y Group 2 (2005-2008) under the WTSA Resolution 1 procedure. ii ITU-T Rec. E.107 (02/2007) 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 org
13、an 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 Standardization Assembly (WTSA), which meets every four years, establishes the
14、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 technology which fall within ITU-Ts purview, the necessary standards are
15、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. Compliance with this Recommendation is voluntary. However, the Recommendatio
16、n may contain certain mandatory provisions (to ensure e.g., interoperability or applicability) 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 t
17、o 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 attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectua
18、l 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 had not received not
19、ice of intellectual property, protected by patents, which may be required to implement this 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
20、2007 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.107 (02/2007) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 1 4 Abbreviations and acronyms 1 5 Conventions 2 6 Emergency telecommuni
21、cations service. 2 7 ENI-to-ENI interconnection . 3 iv ITU-T Rec. E.107 (02/2007) Introduction Countries have, or are developing, ETSs. Implementation of ETS by definition is a national matter. However, disasters/emergencies can transcend geographic boundaries, and thus there is a potential that cou
22、ntries/administrations may enter into bilateral and/or multilateral agreements to link their respective ETS systems. This Recommendation provides guidance that will enable telecommunications between one ETS national implementation (ENI) and other ENI(s). ITU-T Rec. E.107 (02/2007) 1 ITU-T Recommenda
23、tion E.107 Emergency Telecommunications Service (ETS) and interconnection framework for national implementations of ETS 1 Scope This Recommendation provides guidance that will enable telecommunications between one ETS national implementation (ENI) and other ENI(s) (authority-to-authority), in additi
24、on to providing a description of ETS. Early warning (EW) for disasters is not part of this Recommendation, but is left for future studies that may add to this Recommendation or become a separate Recommendation. 2 References The following ITU-T Recommendations and other references contain provisions
25、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 possibility o
26、f 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 Recommendation.
27、 ITU-T E.106 ITU-T Recommendation E.106 (2003), International Emergency Preference Scheme (IEPS) for disaster relief operations. 3 Definitions This Recommendation defines the following terms: 3.1 Emergency Telecommunications Service (ETS): A national service providing priority telecommunications to
28、the ETS authorized users in times of disaster and emergencies. 3.2 ETS user: A user authorized to obtain priority telecommunications in national and/or international emergency situations. 3.3 priority treatment capabilities: Capabilities that provide priority in the use of telecommunications network
29、 resources, allowing a higher probability of end-to-end telecommunications and use of telecommunication applications. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: ENI ETS National Implementation ETS Emergency Telecommunications Service IEPS Internat
30、ional Emergency Preference Scheme IP Internet Protocol ISDN Integrated Services Digital Network ISUP ISDN User Part NGN Next Generation Network 2 ITU-T Rec. E.107 (02/2007) PIN Personal Identification Number PLMN Public Land Mobile Network PSTN Public Switched Telephone Network RTP Real Time Protoco
31、l SIP Session Initiation Protocol TDM Time Division Multiplex TDR Telecommunications for Disaster Relief UDP User Datagram Protocol 5 Conventions None. 6 Emergency telecommunications service ETS is a national implementation utilizing the features, facilities and applications available in national pu
32、blic networks and service offerings. As such, it could be said to resemble a supplementary service since it can only exist if there is an established telecommunication service. Implementation of ETS by definition is a national matter; however, ETS national implementations are likely to exhibit some
33、of the following characteristics: a) ETS users should be able to use their normal telecommunication terminals to initiate ETS calls, sessions or telecommunication during times of crisis or agreed emergency situations. b) An originating national network may use various methods to identify an ETS user
34、 request for ETS telecommunication. c) As a national capability, ETS is specifically designed to serve the telecommunication needs of authorized ETS users. How ETS users are authenticated and authorized is a national matter. d) An ETS call, session or telecommunication is provided end-to-end priorit
35、y treatment beyond that offered to the general public. The priority treatment is applied during the call/session establishment phase, and should continue to be applied for the duration of the call, session or telecommunication. The priority treatment consists of priority mechanisms and features appl
36、icable to various aspects (e.g., signalling, control, routing, and media traffic) that are essential for the establishment and continuation of the telecommunication, including: Priority treatment: Priority treatment mechanisms may include priority call/session set-up (e.g., priority queuing schemes
37、for network resources), access to additional resources (e.g., via alternate routing) and exemption from restrictive network traffic management controls (e.g., call gapping). Pre-emption in the public network (i.e., terminating any established telecommunication to release resources to serve a new ETS
38、 call/session request) is a national matter. Network interconnection and protocol interworking: The signalling of ETS indicators transmitted across network boundaries (e.g., between a circuit-switched network and an NGN, etc.) and the ETS priority treatment should also be ensured to be interoperable
39、 across the relevant networks. ITU-T Rec. E.107 (02/2007) 3 e) An ETS user should be able to communicate with any other available user. For example, any restrictions to call/session completion should be overridden. f) A national government/administration decides whether user priority levels will be
40、assigned to ETS users, and if assigned, how many levels will be used and the assignment criteria. g) If a network or network element is not able to distinguish an ETS call/session request from a normal call request, then the routing of an ETS requested call should proceed as a normal call and any ET
41、S markings or indicators associated with the call should be maintained and transmitted if technically feasible. 7 ENI-to-ENI interconnection Countries have, or are developing, ETSs to allow priority treatment for authorized traffic to support emergency and disaster relief operations within their nat
42、ional boundaries. However, there could be a crisis situation where it is important for an ETS user in one country to communicate with available users in another country. In this case, it is important for an ETS call/session originated in one country to receive end-to-end priority treatment, i.e., pr
43、iority treatment in the originating country and the destination country. This may require interconnection of two ETS national implementations via an international network that provides priority treatment capabilities. The term gateway in the following guidelines should be interpreted to be a traditi
44、onal gateway exchange in a circuit-switched network or an equivalent for NGN networks. The following provides guidance for such an interconnection: a) Countries may establish bilateral/multilateral agreements with regard to the exchange and treatment of ETS calls, sessions and telecommunications. Ev
45、en though ETS may have been invoked, national authorities should be able to retain control of network management functions for their own telecommunication networks, including those elements relating to international traffic with other countries. b) An outgoing international gateway shall provide pri
46、ority treatment to an ETS call, session or other telecommunication. It will provide, if necessary, appropriate mapping of the originating countrys national ETS indicators to the corresponding international call markings so that the ETS call, session or other telecommunication receives priority treat
47、ment in the international network. As this ETS call, session, or other telecommunication proceeds through the international network to an incoming international gateway, the incoming international gateway shall also provide priority treatment. It will provide, if necessary, appropriate mapping of th
48、e international call markings associated with the ETS call, session, or other telecommunication to the corresponding national indicators of the destination country so that the ETS call, session or other telecommunication receives priority treatment in the destination country. c) Based on bilateral/m
49、ultilateral agreement between countries/administrations, the information relating to the ETS user priority level shall be carried transparently across the international network and presented to the destination network. The incoming gateway in the destination country may provide a mapping of the ETS user priority level received from the originating country to that of the country of call/session destination. d) If a transit network is not able to distinguish an ETS call/session request from a normal call/session request, then the ETS call/session req
