1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T E.106TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (10/2003) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation General provisions concerning Administrations International Emergency Prefer
2、ence Scheme (IEPS) for disaster relief operations ITU-T Recommendation E.106 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.119 Genera
3、l 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 telephone servi
4、ce 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 purposes
5、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.409 International ne
6、twork 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 of the number of circuits in manual operation E.510E.519 Determination of the number
7、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: CONCEPTS, MODELS
8、, 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 service obj
9、ectives 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 ITU-T Recommendations. ITU-T Rec. E.106 (10/2003) i ITU-T Recommendation E.106 Interna
10、tional Emergency Preference Scheme (IEPS) for disaster relief operations Summary This Recommendation describes an international preference scheme for the use of public telecommunications by national authorities for emergency and disaster relief operations. The International Emergency Preference Sche
11、me for Disaster Relief Operations (IEPS) is needed when there is a crisis situation causing an increased demand for telecommunications when use of the International Telephone Service may be restricted due to damage, reduced capacity, congestion or faults. In crisis situations there is a requirement
12、for IEPS users of public telecommunications to have preferential treatment. Source ITU-T Recommendation E.106 was approved by ITU-T Study Group 2 (2001-2004) under the WTSA Resolution 1 on 31 October 2003. ii ITU-T Rec. E.106 (10/2003) FOREWORD The International Telecommunication Union (ITU) is the
13、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 tariff questions and issuing Recommendations on them with a view to standardizing tel
14、ecommunications 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 topics. The approval of ITU-T Recommendations is covered by the
15、 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 expression “Administration“ is used for conciseness to indicate both a
16、 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 applicability) and compliance with the Recommendation is achieved when all o
17、f 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 Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHT
18、S 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 asserted by ITU
19、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 cautioned that this ma
20、y 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.106 (10/2003) iii CONTENTS Page
21、1 Scope 1 2 References. 1 3 Definitions 1 4 Abbreviations 1 5 Overall functional requirements . 1 6 IEPS features 2 7 Operational management of the IEPS. 3 Annex A Features and techniques to enhance call completion. 3 A.1 Priority dial tone. 4 A.2 Priority call setup message through national and int
22、ernational signalling network with call identifier 4 A.3 Priority indicator in bearer networks 4 A.4 Exemption from restrictive management controls . 5 A.5 Survivable access and egress from end user location to PSTN/ISDN/PLMN 5 A.6 IEPS user verification. 5 A.7 Special announcements on call progress
23、 5 A.8 Special routing capabilities. 6 A.9 Call forwarding. 6 A.10 Abbreviated dialling . 6 A.11 Attendant override 6 A.12 Authorization codes 7 A.13 Automatic call distribution. 7 A.14 Call-by-call service selection . 7 A.15 Call pickup 7 A.16 Call transfer 7 A.17 Call waiting 7 A.18 Calling number
24、 identification. 7 Appendix I Criteria for the selection of IEPS users 7 iv ITU-T Rec. E.106 (10/2003) Introduction In a crisis situation, there is a need for telecommunications among IEPS users of public telecommunications networks, such as the PSTN, ISDN or PLMN. These communications, which are re
25、garded as essential, will be needed at the same time as the public will be attempting an increased number of calls during the period when the telecommunications networks may be restricted due to damage, congestion or faults. Many countries have, or are developing, national preference schemes to allo
26、w preferential treatment for such national traffic. However, during a crisis, it is important for an international support scheme to allow communications between the IEPS users in one country and their correspondents in another. The International Emergency Preference Scheme for Disaster Relief Opera
27、tions (IEPS) addresses this international support scheme. This preference scheme is only intended for use by IEPS users to be able to place calls with preference. Public emergency services, on the other hand, are intended for use by members of the general public to request services such as fire, pol
28、ice, and medical. They are often invoked by a short access code. ITU-T Rec. E.106 (10/2003) 1 ITU-T Recommendation E.106 International Emergency Preference Scheme (IEPS) for disaster relief operations 1 Scope The IEPS enables the use of public telecommunications by national authorities for emergency
29、 and disaster relief operations. It allows users, authorized by national authorities, to have access to the International Telephone Service, as described in ITU-T Rec. E.105 1, while this service is restricted either due to damage, congestion or faults, or any combination of these. This Recommendati
30、on describes the functional requirements, features, access and the operational management of the IEPS. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publicat
31、ion, 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 of applying the most recent edition of the Recommendations and other references listed below. A list of the c
32、urrently 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. 1 ITU-T Recommendation E.105 (1992), International telephone service. 3 Definitions This Recommendation def
33、ines the following term: 3.1 IEPS user: User authorized by a national authority to have access to IEPS. The specific mechanism that a national authority uses to authorize a user is a national matter and is outside the scope of this Recommendation. 4 Abbreviations This Recommendation uses the followi
34、ng abbreviations: HPC High Priority Call IEPS International Emergency Preference Scheme for Disaster Relief Operations ISDN Integrated Services Digital Network PIN Personal Identification Number PLMN Public Land Mobile Network PSTN Public Switched Telephone Network RNMC Restrictive Network Managemen
35、t Control 5 Overall functional requirements The primary goal for IEPS is to support crisis management arrangements. IEPS should significantly increase the ability of IEPS users to initiate and complete their communications (voice and data) via the PSTN, ISDN or PLMN irrespective of the bearer techno
36、logy. 2 ITU-T Rec. E.106 (10/2003) National preference schemes are intended for use in times of national crisis, but there could be occasions when an international preference scheme may need to be enabled while use of the respective national preference scheme would be unnecessary. An example of this
37、 is when intense international traffic is generated to a distant country in crisis. Therefore, international and national preference schemes need to be considered as independent and compatible. IEPS users of a national preference scheme may not be eligible to gain access to the international scheme,
38、 but IEPS users of the international scheme should be able to use their own national preference scheme. It is recognized that in some national systems, IEPS features may be permanently enabled. IEPS users should be able to use their normal telecommunications equipment in times of crisis. When making
39、 an IEPS call, the PSTN/ISDN/PLMN should not appear markedly different to an IEPS user. Calls originated by IEPS users should be given priority through the networks involved when IEPS is enabled. Under conditions of severe damage or congestion, countries should be able to effect network controls, pa
40、rticularly over incoming traffic, even though IEPS may have been invoked. In order to ensure that an IEPS user can reliably call any other telecommunications user, any restrictions to call completion should be overridden. This does not include pre-emption of any existing calls. Access to public emer
41、gency services is not impacted by this Recommendation. Countries may establish bilateral agreements with regard to the exchange of preference calls and the treatment of such calls. Both the technical means and the management procedures for the initiation and operation of IEPS should be established a
42、nd should be compatible with the existing national network traffic management schemes. This preference scheme is only intended for use by IEPS users to be able to place calls with preference. Public emergency services, on the other hand, are intended for use by members of the general public to reque
43、st services such as fire, police, and medical. They are often invoked by a short access code. 6 IEPS features Calls from IEPS users should be suitably marked (see Note 1) at the network entrance and such markings should be associated with the call to completion (i.e., EPS calls should be marked from
44、 end to end). NOTE 1 Call Marking: A specific identifying mark is associated with the call which prompts operational elements of the public switched network to provide advantages in signalling, switching and traffic routing over non-marked calls. Call marking facilities are available in modern signa
45、lling networks and these can be used by the telecommunications providers to allow call completion advantages to preference users calls. NOTE 2 The call marking, marking interpretation and the processing arrangements will have to be specified and fully agreed at the gateway points. Arrangements to tr
46、ansfer the marked signals would also need to be agreed with non-participating intermediate service providers of the transit networks. The essential network features for the successful operation of IEPS are: a) priority dial tone; b) priority call setup, including priority queuing schemes; and c) exe
47、mption from restrictive management controls, such as call gapping. ITU-T Rec. E.106 (10/2003) 3 A list of features that will enhance call completion are mentioned in Annex A. All IEPS calls will be of the same call class such that there will be only one level of priority for IEPS calls, however, som
48、e implementations may provide enhanced service features by analyzing additional signalling information provided by the call initiator. For example, the country of call origination may have a multi-level preference scheme and may make an agreement with the country of call destination for this multi-l
49、evel preference scheme to be mapped onto that of the country of destination. In such circumstances it is essential that the information relating to level of priority be carried transparently across the international network and presented to the destination network. Transit networks not supporting the IEPS concept should not be required to examine the preference information but should simply pass the signalling information without any change. Pre-emption in the Public Network (i.e., terminating any existing call) should not be provided. 7 Operat
