ITU-T D 195 SUPP 2-2013 Time-scale for settlement of accounts for international telecommunication services Guidelines for day sales outstanding (DSO) management (Study Group 3)《国际电.pdf
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1、 International Telecommunication Union ITU-T D.195TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Supplement 2(05/2013) SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Service and privilege telecommunications Time-scale for settlement of accounts for international telecommunication ser
2、vices Guidelines for day sales outstanding (DSO) management Recommendation ITU-T D.195 Supplement 2 ITU-T D-SERIES RECOMMENDATIONS GENERAL TARIFF PRINCIPLES TERMS AND DEFINITIONS D.0 GENERAL TARIFF PRINCIPLES Private leased telecommunication facilities D.1D.9 Tariff principles applying to data commu
3、nication services over dedicated public data networks D.10D.39 Charging and accounting in the international public telegram service D.40D.44 Charging and accounting in the international telemessage service D.45D.49 Principles applicable to GII-Internet D.50D.59 Charging and accounting in the interna
4、tional telex service D.60D.69 Charging and accounting in the international facsimile service D.70D.75 Charging and accounting in the international videotex service D.76D.79 Charging and accounting in the international phototelegraph service D.80D.89 Charging and accounting in the mobile services D.9
5、0D.99 Charging and accounting in the international telephone service D.100D.159 Drawing up and exchange of international telephone and telex accounts D.160D.179 International sound- and television-programme transmissions D.180D.184 Charging and accounting for international satellite services D.185D.
6、189 Transmission of monthly international accounting information D.190D.191 Service and privilege telecommunications D.192D.195Settlement of international telecommunication balances of accounts D.196D.209 Charging and accounting principles for international telecommunication services provided over t
7、he ISDN D.210D.269 Charging and accounting principles for next generation networks (NGN) D.270D.279 Charging and accounting principles for universal personal telecommunication D.280D.284 Charging and accounting principles for intelligent network supported services D.285D.299 RECOMMENDATIONS FOR REGI
8、ONAL APPLICATION Recommendations applicable in Europe and the Mediterranean Basin D.300D.399 Recommendations applicable in Latin America D.400D.499 Recommendations applicable in Asia and Oceania D.500D.599 Recommendations applicable to the African Region D.600D.699 For further details, please refer
9、to the list of ITU-T Recommendations. Rec. ITU-T D.195/Suppl.2 (05/2013) i Supplement 2 to Recommendation ITU-T D.195 Time-scale for settlement of accounts for international telecommunication services Guidelines for day sales outstanding (DSO) management Summary Supplement 2 to Recommendation ITU-T
10、D.195 is intended to assist telecommunication operators interested in developing guidelines for day sales outstanding (DSO) management. Since an operators decision to establish prepayment mechanisms is an internal commercial matter (with terms negotiated between operators), the guidelines in the pre
11、sent supplement are voluntary and meant to be illustrative in nature. Their objective is to help operators formulate new (or update existing) DSO guidelines according to their own needs, business strategy and headcount pressures. History Edition Recommendation Approval Study Group 1.0 ITU-T D.195 20
12、03-11-21 3 2.0 ITU-T D.195 2006-06-27 3 3.0 ITU-T D.195 2008-04-04 3 4.0 ITU-T D.195 2011-04-01 3 5.0 ITU-T D.195 2012-11-20 3 5.1 ITU-T D.195 Suppl. 1 2013-05-31 3 5.2 ITU-T D.195 Suppl. 2 2013-05-31 3 5.3 ITU-T D.195 Suppl. 3 2013-05-31 3 ii Rec. ITU-T D.195/Suppl.2 (05/2013) FOREWORD The Internat
13、ional Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, opera
14、ting 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 groups which, in turn, pr
15、oduce 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 ISO and IEC. NOTE In t
16、his publication, the expression Administration is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this publication is voluntary. However, the publication may contain certain mandatory provisions (to ensure, e.g., interoperab
17、ility or applicability) and compliance with the publication is achieved when all of these mandatory provisions are met. The words shall or some other obligatory language such as must and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance
18、 with the publication is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applica
19、bility of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the publication development process. As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required to implement thi
20、s publication. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2013 All rights reserved. No part of this publication may be reproduced, by any means whatsoe
21、ver, without the prior written permission of ITU. Rec. ITU-T D.195/Suppl.2 (05/2013) iii Table of Contents Page 1 Introduction 1 1.1 Objective and scope 1 1.2 Benefits of benchmarking DSO management guidelines . 1 1.3 What is DSO? . 1 1.4 Key factors surrounding DSO and DSO indicators 2 1.5 Key obje
22、ctives of DSO management . 2 1.6 Collection department goals . 2 1.7 DSO management strategies . 3 1.8 Core activities and key responsibilities to reduce DSO and DSO management 3 1.9 Measurable goals 5 2 Best practices in DSO management . 5 3 A summary DSO management checklist 5 Rec. ITU-T D.195/Sup
23、pl.2 (05/2013) 1 Supplement 2 to Recommendation ITU-T D.195 Time-scale for settlement of accounts for international telecommunication services Guidelines for day sales outstanding (DSO) management 1 Introduction 1.1 Objective and scope The objective of this supplement is to assist telecommunication
24、operators that are interested in the development of guidelines for the management of day sales outstanding (DSO). These guidelines are illustrative and voluntary as the development of DSO processes is an internal corporate matter and the terms between operators are commercially agreed. 1.2 Benefits
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