1、1TU-T RECflN*D-ZLO 94 4862593 0595552 050 INTERNATIONAL TELECOMMUN CATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU D.21 O (09/94) CHARGING AND ACCOUNTING IN INTERNATIONAL TELECOMMUNICATION SERVICES GENERAL CHARGING AND ACCOUNTING PRINCIPLES FOR INTERNATIONAL TELECOMMUNICATION SERV
2、ICES PROVIDED OVER THE INTEGRATED SERVICES DIGITAL NETWORK (ISDN) ITU-T Recommendation D.21 O (Previously “CCIlT Recommendation”) ITU-T RECMN*D=21O 94 W 4862591 0595553 T97 W FOREWORD The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Uni
3、on (ITU). The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establish
4、es the topics for study by the IT-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12, 1993). - ITU-T Recommendation D.210 was re
5、vised by ITLJ-T Study Group 3 (1993-1996) and was approved under the WTSC Resolution No. 1 procedure on the 15th of September 1994. NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agen
6、cy. O ITU 1995 All 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, without permission in writing from the ITU. ITU-T RECMN*D-ZLO 94 48b259L 0595554 923 CONTENTS Page 1 General prin
7、ciples 1 2 Collection charges 1 3 Accounting . 2 Annex A - Summary description of bearer services, teleservices and supplementary services . . , 3 Recommendation D.210 (09/94) 1 ITU-T RECflN*D.2LO 94 m 4b259L 0595555 8bT PREAMBLE This Recommendation sets out the general principles for charging and a
8、ccounting to be applied by Administrations for the provision of international telecommunication services over an Integrated Services Digital Network (ISDN). These services are defined in the relevant -T Recommendations. Charging and accounting principles for .interworking between services provided o
9、ver the ISDN and services provided over other networks are contained i? other Recommendations in the Series D.200. 11 Recommendation D.210 (09/94) ITU-T RECMN*D-210 9g = r18bZ.591 0595556 7Tb Recommendation D.210 GENERAL CHARGING AND ACCOUNTING PRINCIPLES FOR INTERNATIONAL TELECOMMUNICATION SERVICES
10、 PROVIDED OVER THE INTEGRATED SERVICES DIGITAL NETWORK (ISDN) . (Melbourne, 1988, revised in 1994) The IT-T, considering (a) that an Integrated Services Digital Network (ISDN) provides digital connections between user-network interfaces, enabling Administrations to offer integrated access to a wide
11、- range of international services in association with a multi-service signalling system; (b) the international services to be provided over the ISDN; that it is desirable to achieve as far as practicable the harmonization of charging and accounting principles for (cl the variety of ISDN implementati
12、on and regulatory approaches that apply in different countries; that charging and accounting principles and structures for the ISDN should be flexible enough to accommodate (d) is practicable with the wide range of services envisaged; that it is desirable to adopt charging and accounting structures,
13、 which are as simple and easy to understand as (e) that the installation of the ISDN in various countries will in all probability take place in several stages known as the “transition phase” during which ISDN and other networks will coexist and interwork, and that during this phase due account shoul
14、d be taken of charging and accounting structures and levels for services provided over other networks, recommends 1 General principles The charging and accounting principles applicable to the services to be provided over the ISDN should: take into account the provisions of existing D-Series and othe
15、r pertinent ITVT Recommendations; take into account the different categories of service as defined in Recommendations 1.230,1.240 and 1.250 (see Annex A); take into account the network resources and the functions required for the provision of the services requested and their degree of utilization; n
16、ot be discriminatory, i.e. should not depend on the type of information transmitted except where the costs incurred by the Administrations differ; ensure for Administrations a revenue which is commensurate with the costs borne by them; be based on the principie that each subscriber who authorized a
17、specific service component would be billed by that subscribers Administration. 2 Collection charges 2.1 Collection charges are a national matter. Recommendation D.210 (09/94) 1 ITU-T RECMNxD.210 94 W 48b2591 0595557 632 2.2 Components Collection charges for the ISDN may be divided into two fundament
18、al components: - the access component; - the utilization component. 2.2.1 Access component This component is intended to compensate Administrations for the facilities required for a customer to access a service or services, (i.e. those facilities specifically provided to that customer), and is indep
19、endent of utilization. Network access charges will be determined by national policy and may take account of the type of access provided and the type of services to which the customer subscribes. 2.2.2 Utilization component 2.2.2.1 Utilization charges should be in accordance with the service) request
20、ed by the customer and the basis of provision (demand, reserved) or permanent) basis). These charges should in principle be determined on the basis of the network resources and any additional functions required to provide the service requested by the customer. It the event that the service requested
21、 by the customer cannot be provided du to limitations in the network connection, but the customer elects to proceed with the call, the charges should be determined on the basis of the capability that was provided in order to complete the call. In the event that services requested by the customer can
22、not be provided due to limitations in the terminal function, the charges should be determined on the basis of the network resources provided. 2.2.2.2 In principle, there should be no discrimination between telecommunication services which require the same resources and/or functions to provide them.
23、Additional charges may be raised for some supplementary services. 2.2.2.3 - Utilization charges normally depend on one or more of the following parameters: - service requested; - basis of provision; - - distance between correspondents; - - call Set-up; - duration of communication and/or the volume o
24、f data transmitted by the user; time of usage (to allow for modulation of tariffs according to peuoff-peak periods); call attempts (for further study). 3 Accounting 3.1 Where applicable, Administrations should, by agreement, establish the accounting rate(s) for a given relation for a given telecommu
25、nications service. 3.2 International accounting rates should relate to the utilization of the network and should in principle be determined by the network resources and functions required to provide the service(s) requested by the customer. 3.3 In principle, there should also be no discrimination be
26、tween the level of accounting rate for services which require the same network resources and functions to provide them. 3.4 The accounting rate may be supplemented by additional components where additional functions in the network of the country of destination and/or transit are required to support
27、requested teleservice and supplementary services (Le. in addition to the supporting bearer capability). 1 Principles for the permanent basis and reserved basis are for further study. 2 Recommendation D.210 (09/94) ITU-T RECMNtD-2LO 7q 48b257L 0575558 577 = access paint accesc point I I TE - NOTE - T
28、ransition phase: During the transition phase, Administrations may make adjustments to the application of the provisions of this Recommendation (see Recommendation D.25 1) in order to take into account: - - - the arrangements that will have to be made to ensure interworking between the ISDN and other
29、 networks; the structures and levels of the charges in force and the effect of the evolution of tariffs on Administrations income; provisions contained in relevant -T Recommendations particularly with respect to accounting. TE Annex A Summary description of bearer services, teleservices and suppleme
30、ntary services (This annex forms an integral part of this Recommendation) The different categories of service as defined in Recommendations 1.230, 1.240 and 1.250, and the relationship between them are summarized as follows: Figure A.l shows in a simplified graphic manner the scope of these servicec
31、ategories and the relationships between them. - U U Scope of supplementary seruce TE Terminal equipmmt functicns FIGURE A. UD. 21 O Bearer services provide for information transfer between ISDN access points. They are characterized by a set of low layer attributes including information transfer and
32、access attributes depicting the bearer capability associated with each bearer service, and general attributes. The attribute method of characterizing services is described in Recommendation I. 130. Teleservices provide the full capability for communication by means of terminai equipment functions an
33、d network functions and possibly functions provided by dedicated centres. Teleservices are characterized by the low layer attributes used to describe bearer services, and a set of high level attributes. The high level attributes generally relate to the functions and protocols of layers 4 to 7 of the Open Systems Interconnection (OSI) model. Supplementary services modify or supplement bearer services and teleservices. They cannot be offered as stand alone services and must be offered in association with bearer services or teleservices. Recommendation D.210 (09/94) 3
