CAN CSA-ISO IEC 19459-2004 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification functional mods.pdf
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1、Reference numberISO/IEC 19459:2001(E)ISO/IEC 2001Information technology Telecommunications and informationexchange between systems PrivateIntegrated Services Network Specification, functional model andinformation flows Single Step CallTransfer Supplementary ServiceTechnologies de linformation Tlcomm
2、unications et changedinformation entre systmes Rseau priv intgration de services Spcifications, modle fonctionnel et flux dinformations Servicesupplmentaire de transfert dappel pas uniqueNational Standard of CanadaCAN/CSA-ISO/IEC 19459:04(ISO/IEC 19459:2001)International Standard ISO/IEC 19459:2001
3、(first edition, 2001-05-01) has been adopted without modification(IDT) as CSA Standard CAN/CSA-ISO/IEC 19459:04, which has been approved as a National Standard of Canadaby the Standards Council of Canada.ISBN 1-55397-294-5 January 2004The Canadian Standards Association (CSA), The Standards Council o
4、f Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a federation of independent, autonomousthe Standards Council of Canada to the National organizations working towards the furtherSt
5、andards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national interest.engaged in standards development and certification The principal objects of the Council are to foster activities. and promot
6、e voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufacturers, health, safety, and welfare of the public, assisting consumers, retailers, unions and professional and protecting the con
7、sumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the field of standards.and often adopted by municipal, provincial, and A National Standard of Canada is a
8、standard whichfederal governments in their regulations, particularly in has been approved by the Standards Council ofthe fields of health, safety, building and construction, Canada and one which reflects a reasonableand the environment. agreement among the views of a number of capableIndividuals, co
9、mpanies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance ofdevelopment by volunteering their time and skills to representation of producers, users, consumers, andCSA Committee work and
10、 supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The more to the subject in hand. It normally is a standardthan 7000 committee volunteers and the 2000 which is capable of making a significant and timelysustaining memberships
11、 together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National Standard ofSustaining memberships represent a major source of Canada indicates that a standard conforms to theincome for CSAs standards development act
12、ivities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in support of and as an extension to its technical content of the standard; this remains thestandards development activities. To ens
13、ure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Those who have a need to apply standards arethat bear the CSA Mark. encouraged to use National Standard
14、s of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to periodic review; therefore, users are cautioned centres across Canada and inspection and testing to obtain the latest edition fro
15、m the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsibility for approving National Standards meet its corporate mission: CSA is an independent of Canada rests with theservice organization whose mission
16、is to provide an Standards Council of Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanational and international needs.For
17、further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge
18、 its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 19459:04 Single Step Call Transfer Supplementary ServiceInformation technology Telecommunications and informationexchange between systems Private Integrated Services Network Specifica
19、tion, functional model and information flows January 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 19459:04Information technology Telecommunications andinformation exchange betweensystems Private IntegratedServices Network Specification,functional model and informationflows Single Step Ca
20、ll TransferSupplementary ServiceCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Jo
21、int Technical Committee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participates in the Intern
22、ational Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on request from
23、 the CSA Project Manager.) From time to time,ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will review these documents for approvaland publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standard has b
24、een formally approved, without modification, bythe Technical Committee and has been approved as a National Standard of Canada by the StandardsCouncil of Canada.January 2004 Canadian Standards Association 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever wi
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- CANCSAISOIEC194592004INFORMATIONTECHNOLOGYTELECOMMUNICATIONSANDINFORMATIONEXCHANGEBETWEENSYSTEMSPRIVATEINTEGRATEDSERVICESNETWORKSPECIFICATIONFUNCTIONALMODSPDF

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