1、CCITT RECMNxD.1 91 W 4862571 0560494 4 INTERNATIONAL TELECOMMUN CATION UN ION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE GENERAL TARIFF PRINCIPLES CHARGING AND ACCOUNTING IN INTERNATIONAL TELECOMMUNICATIONS SERVICES D.1 GENERAL PRINCIPLES FOR THE LEASE OF INTERNATIONAL (C
2、ONTINENTAL AND INTERCONTINENTAL) PRIVATE TELECOMMUNICATION CIRCUITS AND NETWORKS Recommendation D.1 Geneva, 1991 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCCITT RECMN*D-L 91 = 48b257L 0560475 b H INTERNATIONAL TELECOMMUNICATION UN
3、 ION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE I GENERAL TARIFF PRINCIPLES CHARGING AND ACCOUNTING IN INTERNATIONAL TELECOMMUNICATIONS SERVICES D.1 GENERAL PRINCIPLES FOR THE LEASE OF INTERNATIONAL (CONTINENTAL AND INTERCONTINENTAL) PRIVATE TELECOMMUNICATION CIRCUITS AND
4、 NETWORKS Recommendation D.1 Geneva, 1991 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCCITT RECMN*D.L 71 E 4862593 05b0496 8 FOREWORD The CCIT (the international Telegraph and Telephone Consultative Committee) is a permanent organ o
5、f the International Telecommunication Union (IT). CCIT 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 Plenary Assembly of CCI“ which meets every four years, establishe
6、s the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT between Plenary Assemblies is covered by the procedure laid down in CCIT Resolution No. 2 (Melbourne, 1988). Recommendation D.l was prepared by Study Group III an
7、d was approved under the Resolution No. 2 procedure on the 15th of July 1991. CcI?T NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication Administration and a recognized private operating agency. O IT 1991 Ail rights reserved. No pa
8、rt of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilui, without permission in writing from the ITU. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Servi
9、cesCCITT RECMN*D-L 71 = qBb2591 05b0497 T Recommendation D.l GENERAL PRINCIPLES FOR THE LEASE OF INTERNATIONAL (CONTINENTAL AND INTERCONTINENTAL) PRIVATE TELECOMMUNICATION CIRCUITS AND NETWORKS (revised 1991) Pream ble This Recommendation sets out the general principles and conditions applicable to
10、international (continental and intercontinental) private leased telecommunication circuits and networks, taking into account opportunities available to Administrations, or other organizations or persons to enter into special arrangements, subject to national laws), for the establishment., operations
11、, and use of international private- leased telecommunication circuits. The diagram included as Annex A to this Recommendation, extracted from Recommendation M.1010 i relating to the constitution and nomenclature of international private leased telecommunication circuits and supplemented for tariff r
12、equirements, indicates what is to be understood by the terms international private leased telecommunication circuits and national extensions. 1 General principles 1.1 The international private leased telecommunication circuit service consists of making dedicated international telecommunication circu
13、its available to a customer2) for use on the terms and conditions which may be set out in a lease agreement between the customer and the Administration of the country at each end of the circuit. Customers may also combine a series of such circuits to establish international private leased telecommun
14、ication circuit networks. 1.2 In providing an international private leased telecommunication circuit service, account should be taken of: a) national laws; b) c) d) e) 1.3 When an Administration or one of its subsidiaries provides a telecommunication service that may also be provided by others under
15、 its national laws, Members should ensure that the Administration or its subsidiary does not enjoy unfair advantage over other international private leased telecommunication circuit customers offering the same type of service. 1.4 When international private leased telecommunication circuits and netw
16、orks are used to provide telecommunication services to the public, the Member concerned shall, as appropriate, encourage the application of relevant CCW Recommendations. the provisions of this Recommendation; such other terms and conditions as may be mutually agreed upon between the Administrations
17、participating in the provision of the particular service arrangement; the desirability of facilitating the advance of technology and the use of modem methods of operation and management; the need to meet the long-term and specific requirements of customers. i) National laws include national regulati
18、ons. 2, The customer is the individual or entity who, or which, leases an international private leased telecommunication circuit from an Administration and is responsible for payment of all charges and rentals due. Recommendation D.l 1 COPYRIGHT International Telecommunications Union/ITU Telecommuni
19、cationsLicensed by Information Handling Services-._ CCITT RECMN*D-L 71 4862571 0560478 1 1.5 The international private leased telecommunication circuit service is important in international relations and Administrations should recognize the requirements for international private leased telecommunica
20、tion circuits in their planning. 2 Conditions of lease 2.1 The customer using an international private leased telecommunication circuit or establishing an international private leased telecommunication circuit network may be requested by the Administrations concerned to provide technical information
21、 as required to prevent technical harm to the public network or to network personnel or information of a kind that will assist the Administration in providing the customer with a more timely and efficient service. 2.2 Recognizing the requirements of preventing technical harm to the network and prote
22、cting the safety of network personnel, equipment connected to an international private leased telecommunication circuit must meet the technical conditions laid down by each of the Administrations concerned. Administrations should consult with each other whenever consultation would assist in expediti
23、ng type-approval of such apparatus and equipment. 2.3 When an international private leased telecommunication circuit or international private leased telecom- munication circuit network has been established, the connection between the terminal stations is set up for the period of the lease in such a
24、way that the international centres at the ends of the international private leased telecommu- nication circuit or international private leased telecommunication circuit network do not need to intervene. However, arrangements must be such as to enable the appropriate staff at these centres to perform
25、 necessary supervision and maintenance. 2.4 Administrations are not obliged to accept any responsibility for the end-to-end quality of transmission over connected circuits which comprise an international private leased telecommunication circuit network. Administrations which otherwise accept respons
26、ibility for the quality of transmission over connected circuits which comprise an international private leased telecommunication circuit network need not do so for portions of the network which they do not provide or which are not operated within the applicable technical requirements for such connec
27、ted use. 2.5 Administrations may temporarily withdraw an international private leased telecommunication circuit from operation in order to perform such tests, adjustments and routine maintenance as is necessary to ensure that the circuit is kept in proper working condition. Administrations shall end
28、eavour to make such a withdrawal only after consultation with the customer and at a time mutuaiiy agreeable to ail parties. 2.6 Under extraordinary circumstances (for example, because of force majeure or threat of imminent technical harm from the continued operation of the international private leas
29、ed telecommunication circuit involved), Administrations may temporarily withdraw an international private leased telecommunication circuit if this is required in the public interest. Under such conditions, withdrawal should be made with as much notice as feasible under the circumstances and restored
30、 in the shortest practicable time. 2.7 the lease of international private leased telecommunication circuits are respected. Administrations shall take all steps, appropriate in the circumstances, to ensure that the provisions governing 2.8 In the event of a violation of these provisions, Administrati
31、ons reserve the right to cancel the lease of the international private leased telecommunication circuit concerned; they must, however, give the customer immediate and adequate notice of their intention to take such action and sufficient opportunity to respond thereto. 2 Recommendation D.l COPYRIGHT
32、International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCCITT RECPlNxD.1 71 4Bb2591 0560499 3 W 2.9 Administration shall confer with the customer to seek a mutually acceptable solution. In the event that questions arise concerning the applicability or in
33、terpretation of the provisions herein, the 3 Conditions of use 3.1 3.1.1 channels, or some of them, may be extended by means of other circuits leased by the same customer; Subject to national laws, the customer may: Subdivide an international private leased telecommunication circuit into telecommuni
34、cation channels. These 3.1.2 Sublease; 3.1.3 Provide international telecommunication services using an international private leased telecommunication circuit or an international private leased telecommunication circuit network. Members of the ITU reserve the right to designate certain telecommunicat
35、ion services3) for special or exclusive provision by specified entities or to submit them to special authorizing conditions. 3.2 Customers should not Administrations if they plan substantial changes in the configuration or technical specifications of their international private leased telecommunicat
36、ion circuit network. 3.3 Communications between customers and users4) and amongst users via international private leased telecommunication circuits may be allowed by Administrations subject to conditions provided for in national laws applied in the countries concerned. 4 Access to public networks 4.
37、1 The interconnection of an international private leased telecommunication circuit or international private leased telecommunication circuit networks with public networks at only one end of the circuit or the network should be permitted subject to national laws. The interconnection of an internation
38、al private leased telecommunication circuit or international private leased telecommunication circuit networks with public networks may be permitted simultaneously at both ends of the circuit or the network if agreed between the Members concerned in conformity with their national laws to be applied
39、regarding the exclusive provision of certain services. Such interconnection should in principle be made on the customers premises. 4.2 public network over an international private leased telecommunication circuit. Administrations are not obliged to guarantee the quality of the transmission of calls
40、to or from users on the 5 Duration of the lease, charging, cancellation 5.1 Except as provided in 0 5.5 below for temporary services, the lease shail last for a minimum of one month. 5.2 The lease shail be continued thereafter by tacit agreement until cancelled by either party. Notice of cancellatio
41、n should normally be given seven days in advance of the effective date of cancellation. However, an Administration and a customer may agree on a different period of notice. The charges for fractional parts of a month beyond the first month should be in accordance with $0 5.4.1 and 5.4.2 below. 3, In
42、 particular the public telephone service. 4, The user is the individual or entity designated by the customer, individually or by class, as having access to the international private leased telecommunication circuit. Recommendation D.1 3 COPYRIGHT International Telecommunications Union/ITU Telecommun
43、icationsLicensed by Information Handling ServicesCCITT RECMNxD.1 71 4862571 O560500 b I 30 October-I5 December 30 October not counted 31 October = 1 day November = 1 month 1-15 December = 15 days 5.3 The lease should normally be payable one month in advance. 30 November-15 January 30 October not cou
44、nted December = 1 month 1-15 January = 15 days 1 5.4 In calculating the duration of the lease, one month shall mean one calendar month. Moreover, the day on which the circuit is made available for service to the customer, shall not be reckoned. The day on which the circuit is withdrawn shall be reck
45、oned as a full day. However, in cases where customer provided equipment is necessary for operation of the circuit and the customer equipment is not ready for use, Administrations should take into consideration particular circumstances in determining the date of start of service. Thus, a period of le
46、ase covering one month or more is calculated as follows: a) count the number of days beginning on the following day on which the circuit was made available until the end of the month, b) thereafter count the number of full calendar months, if any; and c) count the number of service days in the last
47、month, including the day on which the circuit was withdrawn. 5.4.1 As regards charging: - full calendar months are subject to the monthly rental; - fractions of a montb shall be subject to a daily charge equal to 1/30th of the monthly rental. 5.4.2 Examples: see Table lD.1, TABLE 1ID.1 Life of a lea
48、se from tbe day of availability until the day of withdrawal 4 January-IO February 4 January not counted 5 January-31 January = 27 days 1 February-10 February = 10 days 4 Recommendation D.l Chargeable time 1 month 16 days 1 month 15 days 37 days Charge 1 monthly rental + 16130th of this rental 1 mont
49、hly rental + 15/30th of this rental 37/30th of monthly rental COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCCITT RECMN*D.L 91 4862573 05b050L A W 5.5 5.5.1 A temporary lease service may be granted for a period of less than one month. In calculating the life of a temporay lease, one day shall mean a period of 24 consecutive hours. The life of a lease should be calculated in multiples of 24 hours, the period starting from the time at which the circuit is made available until the time at which it is withdrawn.
