1、 CCITT RECMN*F*LL 91 4862593 0560622 9 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TELEGRAPH AND MOBILE SERVICES OPERATIONS AND QUALITY OF SERVICE F.ll CONTIN U ED AVAILABILITY OF TRADITIONAL SERVICES Recommendation F.ll I Geneva, 1991
2、 CCITT RECMN*F-LL 71 4862573 05b0623 O W INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TELEGRAPH AND MOBILE SERVICES OPERATIONS AND QUALITY OF SERVICE F.11 CONTI N U ED AVAI LAB I LITY OF TRADITIONAL SERVICES Recommendation F.ll Geneva,
3、1991 CCITT RECMN*F-LL 91 E 48b2591 05bOb24 2 FOREWORD The CCIIT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (IT). CCITT is responsible for studying technical, operating and tariff questions and issuing Recommend
4、ations on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCIiT which meets every four years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT between
5、 Plenary Assemblies is covered by the procedure laid down in CCIT Resolution No. 2 (Melbourne, 1988). Recommendation F.ll was prepared by Study Group I and was approved under the Resolution No. 2 procedure on the 11th of October 1991. In this Re CCiT NOTE ndation, the expreision “Administration” is
6、u d for conciseness telecommunication Administration and a recognized private operating agency. O ITU 1991 D indicate both a Ail rights 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, wit
7、hout permission in writing from the ITU. CCITT RECMN*F*LL 91 = 4B62591 0560625 4 Recommendation F.ll CONTINUED AVAILABILlTY OF TRADIONAL SERVICES 1 Background 1.1 At the World Administrative Telegraph and Telephone Conference (Melbourne, 1988) considerable attention was given to ensuring a wide avai
8、lability of telecommunication services with effective interconnection and interoperability. This implied a continuing availability of basic or traditional services in many international relations, despite the evolution of new or more sophisticated services. Article 4 of the International Telecommuni
9、cation Regulation (Melbourne, 1988) expects Administrations to provide “a wide range of international telecommunication services” including “at least a form of telecommunication which is reasonably accessible to the public, including those who may not be subscribers to a specific telecommunication s
10、ervice”. 1.2 Resolution No. 6 of the same World Administrative Telegraph and Telephone Conference (Melbourne, 1988) called for provisions to be made “to allow, though available communication infrastnictures, continued availability of traditional services so as to enable effective communications on a
11、 world-wide basis”. In particular this concerned services in “certain rural areas and developing countries” that “may need to rely on existing widely available services for a relatively long period of time”. 2 Scope 2.1 Pursuant to the Intemational Telecommunication Regulations Melbourne, 1988), thi
12、s Recommendation lays down general principles on the continued availability of traditional services to facilitate global interconnection and interoperability of telecommunication facilities, pending the establishment of new services and to ensure the efficiency, usefulness and availability to the pu
13、blic of international telecommunication services. 2.2 Members should take any necessary steps to ensure that coordination. It addresses the coordination needed between Administrations to achieve that continued availability. 2.3 telegram, telex and telephone services. Within the framework of this Rec
14、ommendation, “traditional” services include the international public 3 Services principles 3.1 Pursuant to Article 4 (4.3) of the International Telecommunication Regulations, and subject to national coordination arrangements, Administrations should provide and maintain at least a minimum quaity of s
15、ervice corresponding to the relevant CCIT Recommendations for the various telecommunication services that they offer to the public. 3.2 Administrations may take action to develop, to improve or to rationalize this range of services, including an integration of elements of various services (interwork
16、ing or accessing arrangements) or the introduction of new services. Provisions to ensure adequate interconnection and interoperability may be incorporated into existing Recommendations or covered by new Recommendations. In particular the aspects of quality of service (as perceived by the user) and t
17、ariff principles need to be covered in the appropriate Recommendations. Recommendation F.ll 1 CCITT RECMN*F.LL 91 4862593 0560626 b 3.3 When the Administration (or Administrations) in one country suspends an international service definitively, either in ail or certain relatipns, it shall make arrang
18、ements to ensure to the greatest extent practicable that the service may effectively continue to operate in some acceptable form for other Administrations, pending the establishment of the relevant new or replacement services in their countries. In this context, the continuing service is the end res
19、ult perceived by the user. The actual telecommunication infrastructure used to furnish that end service may vary. For example in some instances and for agreed classes of traffk the telemessage and/or bureaufax services could be considered to provide an adequate replacement for an international publi
20、c telegram service. 3.4 In principle, such replacement services or interworking arrangements should not unduly burden Administrations that may reasonably be considered to rely on the continued availability of the relevant traditionai service. Consequently, the necessary changes in the technical facilities and in the operational procedures (including accounting) should be arranged to have minimum impact on Administrations needing to retain the raditional service. 2 Recommendation F.ll
