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IMPORT
R:\\ART\\W INTERNATIONAL TELECOMMUNICATION UNION
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CCITT D.260
THE INTERNATIONAL
TELEGRAPH AND TELEPHONE
CONSULTATIVE COMMITTEE
GENERAL TARIFF PRINCIPLES
CHARGING AND ACCOUNTING IN
INTERNATIONAL TELECOMMUNICATIONS
SERVICES
CHARGING AND ACCOUNTING
CAPABILITIES
TO BE APPLIED ON THE ISDN
Recommendation D.260
IMPORT Geneva, 1991
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Printed in Switzerland
FOREWORD
The CCITT (the International Telegraph and Telephone Consultative
Committee) is a permanent organ of the International Telecommunication Union
(ITU). CCITT 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 CCITT 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 Plenary
Assemblies is covered by the procedure laid down in CCITT Resolution No. 2
(Melbourne, 1988).
Recommendation D.260 was prepared by Study Group III and was approved
under the Resolution No. 2 procedure on the 22 of March 1991.
___________________
CCITT NOTE
In this Recommendation, the expression "Administration" is used for
conciseness to indicate both a telecommunication Administration and a recognized
private operating agency.
F ITU 1991
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.
PAGE BLANCHE
Recommendation D.260
Recommendation D.260
CHARGING AND ACCOUNTING CAPABILITIES TO BE APPLIED ON THE ISDN
1 Preamble
Tariff and accounting principles for services supported by ISDNs are
contained in other Recommendations in the D.200-Series. This Recommendation
provides a methodology for identifying and displaying charging and accounting
capabilities requiring network support.
2 General
The tariff and accounting principles contained in the D.200-Series
Recommendations, describe those principles in terms that may not be readily
understood by the technical experts who are developing the charging and
accounting support mechanisms.
This Recommendation provides a methodology for the development and
displaying of a more detailed level of information that results from expert
interpretation of general tariff and accounting principles applied to specific
services to be supported by ISDNs.
3 Methodology
In order for the technical experts to provide appropriate support
mechanisms, there is a need for them to be advised of the structure of the
charging and accounting requirements. The level of charges is a national matter
and is not of concern to the system design technical experts. It may be that the
relative size of fields used in the transmission of charging and accounting
information will need to be defined in the protocol development stage (further
study). Tariff experts need to examine each specific service and systematically
develop and display potential charging and accounting requirements. Emphasis must
be placed on the word "potential" since Administrations may select different
combinations of the provided support mechanisms in the implementation of their
charging systems.
In general, the system design technical experts will need to be advised of
the structure of the charging and accounting elements to be supported.
4 Application
To ensure that consistency between the tariff and accounting principles
and the charging and accounting requirements is maintained, each D.200-Series
Recommendation that deals with a specific service should contain an additional
section that details the charging and accounting requirements. To ensure
consistency of approach in the displaying of that detail, it is recommended that
the approach described in Table A-1/D.260 for charging and
Table A-2/D.260 for accounting be utilized.
This approach follows the sequence of identifying the charging or
accounting element, identifying its form and unit and further identifying if any
of a number of modifying characteristics may be present. Annex B displays a
typical application.
5 Application detail
5.1 Recommendation D.210 establishes the basic components for charging and
accounting. This Recommendation applies the network mechanisms to those
components which are contained in Table A-1/D.260 for charging a d in Table A-
2/D.260 for accounting.
styleref head_footRecommendation D.260PAG
E3
5.2 Certain modifiers to the charging and accounting components will also need
to be supported. Modifiers that have been identified so far are defined below:
a) Requested service: In principle, charges are raised in relation to
the service requested by the customer (e.g. telephony, 64 kbits/s
unrestricted, etc.).
b) Distance: Utilization charges normally reflect distance sensitivity
which tends to be established on the basis of either the crowflight
distance between the calling and called locations or between the
international zones in which they reside.
c) Time/volume: Utilization charges may also be dependent on the rate
period in effect or on the volume transmitted.
d) Chargeable/non-chargeable units: Certain types of calls or packets
may be carried free of charge. Such calls or packets will need to
be identified.
e) Transit: For accounting purposes, it may be required that the use
of transit facilities be identified (for further study).
ANNEX A
(to Recommendation D.260)
General structure of network charging and accounting
capability elements
include 260-t01ETABLE A-1/D.260
Charging
Elements Form Unit
Access Subscription Uniform periodic
charge
Invocation Call or service set- Uniform charge
up or attempta) per successful
invocationa)
Usage Call duration. Time, pulse.
Volume transmitted Packet, segment
a) Attempt charges and invocation charges a e for
further study.
include 260-t02ETABLE A-2/D.260
Accounting
Elements Form Unit
Invocation (For further study) (For further study)
Usage Call duration Time
Volume transmitted Packet, segment
ANNEX B
PAGE2 styleref head_footRecommendation D.260
(to Recommendation D.260)
Example of charging and accounting attribute application
Charging and accounting support requirements
B.1 The following charging and accounting elements have been identified as
being in need of network support mechanisms.
B.2 Administrations may elect to use all, none or any combination of the
charging and accounting elements identified. Accounting arrangements are subject
to bilateral agreement.
B.3 Service requested: circuit mode demand bearer Service, 64 kbits/s
unrestricted, 3.1 kHz audio, speech.
include 260-T03E
Charging element Form Unit Modifier
Invocation Call set up or call (For further study)
attempt
Usage Call duration Timea) Calling and
pulsea) called numbers,
time of day,
date.
Service call
(if applicable)
a) The chosen unit is a function of the charging mechanism at pla e in
the charging Administration.
Accounting Form Unit Modifier
element
Usage Call duration Time
Transit facility
styleref head_footRecommendation D.260PAG
E3
usage
(applicable)
PAGE2 styleref head_footRecommendation D.260