1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T E.217TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2002) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation Maritime mobile service and public land mobile service Maritime communicatio
2、ns Ship station identityITU-T Recommendation E.217 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 General provisions concerning us
3、ers 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 service E.190E.199 Maritime mob
4、ile 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 E.260E.269 UTILIZATION OF
5、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 network management E.410E.41
6、9 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 of circuits in automatic a
7、nd 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, OBJECTIVES AND DEPENDABI
8、LITY 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 objectives for planning of te
9、lecommunication 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.217 (05/2002) i ITU-T Recommendation E.217 Maritime communications Ship stat
10、ion identity Summary For the purposes of International Public Correspondence Telecommunication, the ship station identity is now only relevant for those existing systems that have the ship station identity embedded in the numbering scheme as illustrated in Annexes A and B. For future systems that wi
11、ll not embed the ship station identity in their numbering scheme the ship station identity ceases to have any relevance for public correspondence telecommunication purposes. Source ITU-T Recommendation E.217 was prepared by ITU-T Study Group 2 (2001-2004) and approved under the WTSA Resolution 1 pro
12、cedure on 16 May 2002. ii ITU-T Rec. E.217 (05/2002) 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 st
13、udying 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 topics for study by the ITU-T study gr
14、oups 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 prepared on a collaborative basis with
15、 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. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Re
16、commendation 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 outside of the Recommendation development process. As of the date of
17、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 may not represent the latest information and are therefore strongly urged to consult the
18、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.217 (05/2002) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Ship station identity 1 4 Assignment of Maritime Identifica
19、tion Digits (MID) 1 5 The use of the ship station identity. 1 6 The Global Maritime Distress and Safety System (GMDSS) 2 Annex A Telephone/ISDN numbering plan for the mobile-satellite services of Inmarsat. 2 A.1 Introduction 2 A.1.1 Purpose . 2 A.1.2 Terminology . 2 A.1.3 Basic considerations . 3 A.
20、2 Format of Inmarsat mobile international number. 3 A.3 E.164 codes for Inmarsat applications 4 A.4 Format of Inmarsat mobile number 4 A.4.1 General format 4 A.4.2 Formats for Inmarsat-A system 5 A.4.3 Formats for Inmarsat-B system 6 A.4.4 Format for Inmarsat-C system 7 A.4.5 Format for Inmarsat Aer
21、onautical system 8 A.4.6 Formats for Inmarsat-M system . 9 A.4.7 Formats for Inmarsat-mini-M system 10 A.4.8 Future Inmarsat systems. 10 A.5 Digit analysis 10 A.6 Presentation of Inmarsat mobile numbers in directories 11 A.6.1 General . 11 Attachment I to Annex A Use of ship station identification f
22、or maritime applications of systems operated by Inmarsat (Normative) 11 A.I.1 General . 11 A.I.2 Constraints on ship station identification and numbering 12 A.I.3 Application of ship station identity 12 Attachment II to Annex A Group call numbering scheme for Inmarsat systems (Normative). 14 A.II.1
23、Categories for group call services 14 A.II.2 Group call formats 14 iv ITU-T Rec. E.217 (05/2002) Page Attachment III to Annex A Structure of the on-board identification digits in the Inmarsat numbering plan (Normative) . 15 A.III.1 Introduction 15 A.III.2 Proposed structure 15 A.III.3 Allocation . 1
24、5 Annex B Numbering plan for access to the mobile-satellite services of Inmarsat from the international telex service . 16 B.1 Introduction 16 B.1.1 Purpose . 16 B.1.2 Terminology . 17 B.1.3 Basic considerations . 17 B.2 Format of Inmarsat mobile international number. 18 B.3 Telex destination codes
25、for Inmarsat 18 B.4 Format of Inmarsat mobile number 18 B.4.1 General format 18 B.4.2 Formats of the Inmarsat mobile number for Inmarsat-A system . 19 B.4.3 Formats of the Inmarsat mobile number for Inmarsat-B system 19 B.4.4 Format of the Inmarsat mobile number for Inmarsat-C system . 20 B.4.5 Form
26、at of the Inmarsat mobile number for Inmarsat aeronautical system. 20 B.4.6 Future Inmarsat systems. 20 B.5 Digit analysis 20 B.6 Presentation of Inmarsat mobile numbers in directories 21 B.6.1 General . 21 Attachment I to Annex B Use of ship station identification for maritime applications of syste
27、ms operated by Inmarsat (Normative) 21 B.I.1 General . 21 B.I.2 Constraints on ship station identification and numbering 22 B.I.3 Applications of ship station identity. 22 Attachment II to Annex B Group call numbering scheme for the Inmarsat system (Normative). 23 B.II.1 Categories for group call se
28、rvices 23 B.II.2 Group call formats 24 Reference . 24 ITU-T Rec. E.217 (05/2002) v Introduction The advent a mobile satellite communication system designed to serve the maritime community, made it possible for ships to participate in the automatic international telex service and the automatic intern
29、ational telephone service. This gave rise the need for a unique international identity for ship stations. In anticipation of other communications methods becoming available to connect the maritime community with public telecommunication networks worldwide, it was decided to standardise a form identi
30、fication for ships for telecommunications purposes usable over both terrestrial radio and satellite systems. It was also recognised that unique station identities would be an integral component of the automated distress and safety communication functions underpinning the development of the Global Ma
31、ritime Distress and Safety System (GMDSS). The Ship Station Identity was therefore established as part of the maritime mobile service identity concept, which includes other elements of maritime communications (see the relevant Radio Regulations and ITU-R Recommendations). The intention was that ther
32、e would always be a direct and obvious link between ship station identities and international telecommunications numbers in order to facilitate the control of distress communications. It is only the satellite systems that have been able to resolve the various billing, routeing, charging and signalli
33、ng aspects in a manner compatible with the networks serving the rest of the communications environment. It has not proved feasible to establish single-stage connection procedures to ships over terrestrial radio paths that can satisfy all these aspects. Moreover, mobile satellite systems are now desi
34、gned to offer service to a number of different sectors, not just the maritime sector, and as such can not support embedding the ship station identity in the international telecommunications number of the ship. Embedding the ship station identity in the international telecommunication number is consi
35、dered unreasonable and contrary to the principles of ITU-T Rec. E.190 with regard to the efficient and effective use of numbering resources For the purposes of International Public Correspondence Telecommunication, the ship station identity is now only relevant for those existing systems that have t
36、he ship station identity embedded in the numbering scheme. For future systems that will not embed the ship station identity in their numbering scheme the ship station identity ceases to have any relevance for public correspondence telecommunication purposes. For illustrative purposes the use of the
37、ship station identity in the numbering scheme associated with the International Telephone Service and the International Telex Service provided by means of the Inmarsat maritime mobile satellite system is shown in Annexes A and B For ships participating in the GMDSS (Global Maritime Distress and Safe
38、ty System), it remains essential to be able to establish a link between the ships station identity and any telecommunications number associated with that ship. If the link cannot be readily ascertained by visual inspection of the number it must be available through reference to a suitable database.
39、ITU-T Rec. E.217 (05/2002) 1 ITU-T Recommendation E.217 Maritime communications Ship station identity 1 Scope This Recommendation describes methods for the use of ship station identities in maritime telecommunications and the relationship with international public correspondence tele-communications.
40、 2 References 2.1 The Manual for the Maritime Mobile and Maritime Mobile-Satellite Services, published by the Radiocommunication Bureau, makes reference to the Recommendations of the ITU-T and ITU-R concerned with the creation and use of maritime mobile service identities and international telecommu
41、nication numbers for ships. Attention is also drawn to relevant extracts from the ITU Constitution and Convention and to the Radio Regulations. (see for example, ITU-R Rec. M.585 and Article 19 of the Radio Regulations). 3 Ship station identity 3.1 The ship station identity is established as nine di
42、gits M1I2D3X4X5X6X7X8X93.2 The initial three digits denote the administration responsible for the ship and are known as the Maritime Identification Digits (MID). The value of the first digit has the range 2 to 7. Of the remaining values 0 has been reserved, 1 is reserved for expansion of the MID ran
43、ge, 8 and 9 are used for other purposes but with a view to them becoming available for future expansion. 4 Assignment of Maritime Identification Digits (MID) 4.1 Each MID represents a discrete assignable capacity of ship station identities. MID(s) were originally assigned to individual countries acc
44、ording to a plan that related assignable capacity of ship station identities to ship population. The Radio Regulations make provision for the allocation of an additional MID for a specific Administration when necessary. 5 The use of the ship station identity 5.1 The 12-digit E.164 number format for
45、the international telephone service has to accommodate various system identification and operational functions. When used in conjunction with existing GMDSS systems only 6 of the 12 digits are available for identifying particular ships. If there is a requirement for a ship station identity of nine d
46、igits to be represented in the E.164 number then this must be accomplished within 6 digits. This was achieved by using the first 6 digits of the ship station identity and giving digits seven, eight and nine the value of zero. This combination is known as ship station identity with three trailing zer
47、os and was applied to both terrestrial and satellite systems. 5.2 Annex A illustrates the way a ship station identity is used in an international telephone number for the maritime mobile satellite service. 2 ITU-T Rec. E.217 (05/2002) 6 The Global Maritime Distress and Safety System (GMDSS) 6.1 The
48、ship station identity is used as the unique reference for ships that participate in GMDSS. A Rescue Coordination Centre (RCC) is able to use the ship station identity to ascertain information such as the ships name, call sign, flag state (nationality) and emergency contact details. This is needed bo
49、th for ships in distress and those that may be able to assist. If the ships telecommunications number does not have the ship station identity embedded in it, then the system operator should provide this information to the RCC by means of access to a database. Such access should be available on a 24 hour-per-day, 7 days-per-week basis. In systems that have distress priority, this information should be automatically forwarded to an RCC. 6.2 The initial query would be based on the E.164 telecommunication number and this should give access
