1、 Reference numberISO/IEC 15991:2003(E)ISO/IEC 2003Information technology Telecommunications and information exchange between systems Private Integrated Services Network Specification, functional model and information flows Call Priority Interruption and Call Priority Interruption Protection suppleme
2、ntary services Technologies de linformation Tlcommunications et change dinformation entre systmes Rseau priv intgration de services Spcification, modle fonctionnel et flux dinformations Services supplmentaires dinterruption de priorit dappel et de protection dinterruption de priorit dappel National
3、Standard of CanadaCAN/CSA-ISO/IEC 15991:04(ISO/IEC 15991:2003)International Standard ISO/IEC 15991:2003 (second edition, 2003-04-01) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 15991:04, which has been approved as a NationalStandard of Canada by the Standards Council o
4、f Canada.ISBN 1-55397-703-3 December 2004The Canadian Standards Association (CSA), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973. It is a not-for-profit, nonstatutory, vo
5、luntary membership association engaged in standards development and certification activities. CSA standards reflect a national consensus of producers and users including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used wide
6、ly by industry and commerce and often adopted by municipal, provincial, and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs s
7、tandards development by volunteering their time and skills to CSA Committee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are cho
8、sen. Sustaining memberships represent a major source of income for CSAs standards development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Ass
9、ociation regularly and continually audits and inspects products that bear the CSA Mark. In addition to its head office and laboratory complex in Toronto, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association
10、 has developed the necessary expertise to meet its corporate mission: CSA is an independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to
11、meet national and international needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaThe Standards Council of Canada is the coordinating body of the National Standards system, a federation of independent,
12、autonomous organizations working towards the further development and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety
13、, and welfare of the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which
14、reflects a reasonable agreement among the views of a number of capable individuals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand. It no
15、rmally is a standard which is capable of making a significant and timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not
16、refer to the technical content of the standard; this remains the continuing responsibility of the accredited standards development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic r
17、eview; therefore, users are cautioned to obtain the latest edition from the organization preparing the standard.The responsibility for approving National Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaAlthough the intended prima
18、ry application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 15991:04Information technology Telecommunication
19、s and information exchangebetween systems Private Integrated Services Network Specification,functional model and information flows Call Priority Interruption andCall Priority Interruption Protection supplementary servicesDecember 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 15991:04Infor
20、mation technology Telecommunications and information exchange between systems Private Integrated Services Network Specification, functional model and information flows Call Priority Interruption and Call Priority Interruption Protection supplementary servicesCSA PrefaceStandards development within t
21、he Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for
22、the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).This
23、International Standard was reviewed by the CSA TCIT under the jurisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. (A committee membership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC may publish
24、 addenda, corrigenda, etc. The CSA TCIT will review these documents for approval and publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update or contact a CSA Sales representative. This Standard has been formally approved as a National Standard of Canada by the
25、Standards Council of Canada.December 2004 Canadian Standards Association 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Where the words “this International Stan
26、dard” appear in the text, they should be interpreted as “this National Standard of Canada”.Inquiries regarding this National Standard of Canada should be addressed toCanadian Standards Association5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044www.csa.caR
27、eference numberISO/IEC 15991:2003(E)ISO/IEC 2003INTERNATIONAL STANDARD ISO/IEC15991Second edition2003-04-01Information technology Telecommunications and information exchange between systems Private Integrated Services Network Specification, functional model and information flows Call Priority Interr
28、uption and Call Priority Interruption Protection supplementary services Technologies de linformation Tlcommunications et change dinformation entre systmes Rseau priv intgration de services Spcification, modle fonctionnel et flux dinformations Services supplmentaires dinterruption de priorit dappel e
29、t de protection dinterruption de priorit dappel ISO/IEC 15991:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and instal
30、led on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software produc
31、ts used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, pl
32、ease inform the Central Secretariat at the address given below. ISO/IEC 2003 All rights reserved. Unless otherwise specified, 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 w
33、riting from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2003 All rights reservedISO/IEC 15991:2003(E) ISO/IE
34、C 2003 All rights reserved iiiContentsForeword viIntroduction vii1 Scope 12 Conformance 13 Normative references 14 Terms and definitions 24.1 External definitions 24.2 Additional network feature 24.3 Call, Basic call 24.4 Call Priority Interruption Capability Level (CPICL) 24.5 Call Priority Interru
35、ption Protection Level (CPIPL) 24.6 Established call 34.7 Impending priority interruption state 34.8 Impending priority interruption warning notification 34.9 Non-priority call 34.10 Priority call 34.11 Protected call 34.12 Served user 34.13 Time to priority interruption 34.14 Unprotected call 35 Li
36、st of acronyms 36 SS-CPI stage 1 specification 46.1 Description 46.1.1 General description 46.1.2 Qualifications on applicability to telecommunication services 46.2 Procedure 46.2.1 Provision/withdrawal 46.2.2 Normal procedures 46.2.3 Exceptional procedures 66.3 Interaction with other supplementary
37、services and ANFs 66.3.1 Calling Name Identification Presentation (SS-CNIP) 66.3.2 Connected Name Identification Presentation (SS-CONP) 66.3.3 Completion of Call to Busy Subscriber (SS-CCBS) 66.3.4 Completion of Call on No Reply (SS-CCNR) 66.3.5 Call Transfer (SS-CT) 66.3.6 Call Forwarding Unconditi
38、onal (SS-CFU) 66.3.7 Call Forwarding Busy (SS-CFB) 66.3.8 Call Forwarding No Reply (SS-CFNR) 66.3.9 Call Deflection (SS-CD) 66.3.10 Path Replacement (ANF-PR) 66.3.11 Call Offer (SS-CO) 66.3.12 Call Intrusion (SS-CI) 66.3.13 Do not Disturb (SS-DND) 66.3.14 Do not Disturb Override (SS-DNDO) 66.3.15 Ad
39、vice of Charge (SS-AOC) 6ISO/IEC 15991:2003(E)iv ISO/IEC 2003 All rights reserved6.3.16 Recall (SS-RE) 66.3.17 Call Interception (ANF-CINT) 76.3.18 Transit Counter (ANF-TC) 76.3.19 Interaction with Wireless Terminal Location Registration (SS-WTLR) 76.3.20 Interaction with Wireless Terminal Incoming
40、Call (ANF-WTMI) 76.3.21 Interaction with Wireless Terminal Outgoing Call (ANF-WTMO) 76.3.22 Interaction with Wireless Terminal Authentication of a WTM user (SS-WTAT) 76.3.23 Interaction with Wireless Terminal Authentication of a PISN (SS-WTAN) 76.3.24 Message Waiting Indication (SS-MWI) 76.3.25 Comm
41、on Information (ANF-CMN) 76.3.26 Call Priority Interruption Protection (SS-CPIP) 76.4 Interworking considerations 76.5 Overall SDL 77 SS-CPIP stage 1 specification 117.1 Description 117.1.1 General description 117.1.2 Qualifications on applicability to telecommunication services 117.2 Procedure 117.
42、2.1 Provision/withdrawal 117.2.2 Normal procedures 117.2.3 Exceptional procedures 127.3 Interaction with other supplementary services and ANFs 127.3.1 Calling Name Identification Presentation (SS-CNIP) 127.3.2 Connected Name Identification Presentation (SS-CONP) 127.3.3 Completion of Call to Busy Su
43、bscriber (SS-CCBS) 127.3.4 Completion of Call on No Reply (SS-CCNR) 127.3.5 Call Transfer (SS-CT) 127.3.6 Call Forwarding Unconditional (SS-CFU) 127.3.7 Call Forwarding Busy (SS-CFB) 127.3.8 Call Forwarding No Reply (SS-CFNR) 127.3.9 Call Deflection (SS-CD) 127.3.10 Path Replacement (ANF-PR) 127.3.1
44、1 Call Offer (SS-CO) 127.3.12 Call Intrusion (SS-CI) 127.3.13 Do not Disturb (SS-DND) 127.3.14 Do not Disturb Override (SS-DNDO) 127.3.15 Advice of Charge (SS-AOC) 127.3.16 Recall (SS-RE) 137.3.17 Call Interception (ANF-CINT) 137.3.18 Transit Counter (ANF-TC) 137.3.19 Interaction with Wireless Termi
45、nal Location Registration (SS-WTLR) 137.3.20 Interaction with Wireless Terminal Incoming Call (ANF-WTMI) 137.3.21 Interaction with Wireless Terminal Outgoing Call (ANF-WTMO) 137.3.22 Interaction with Wireless Terminal Authentication of a WTM user (SS-WTAT) 137.3.23 Interaction with Wireless Terminal
46、 Authentication of a PISN (SS-WTAN) 137.3.24 Message Waiting Indication (SS-MWI) 137.3.25 Common Information (ANF-CMN) 137.3.26 Call Priority Interruption (SS-CPI) 137.4 Interworking considerations 137.5 Overall SDL 138 SS-CPI stage 2 specification 15ISO/IEC 15991:2003(E) ISO/IEC 2003 All rights res
47、erved v8.1 Functional model 158.1.1 Functional model description 158.1.2 Description of Functional Entities 158.1.3 Relationship of functional model to basic call functional model 168.2 Information flows 168.2.1 Definition of information flows 168.2.2 Relationship of information flows to basic call
48、information flows 188.2.3 Information flow sequences 188.3 Functional Entity actions 218.3.1 Actions of FE1 218.3.2 Actions of FE2 218.3.3 Actions of FE3 228.3.4 Actions of FE4 228.3.5 Actions of FE5 228.4 Functional entity behaviour 228.4.1 Behaviour of FE1 228.4.2 Behaviour of FE2 248.4.3 Behaviou
49、r of FE3 258.4.4 Behaviour of FE4 278.4.5 Behaviour of FE5 288.5 Allocation of Functional Entities to physical equipment 298.6 Interworking considerations 299 SS-CPIP stage 2 specification 299.1 Functional model 299.1.1 Functional model description 299.1.2 Description of Functional Entities 309.1.3 Relationship of functional model to basic call functional model 309.2 Information flows 319.2.1 Definition of information flows 319.2.2 Relationship of informati
