1、National Standard of CanadaCAN/CSA-ISO/IEC 11572-01(ISO/IEC 11572:2000)International Standard ISO/IEC 11572:2000 (third edition, 2000-03-15), has been adopted withoutmodification as CSA Standard CAN/CSA-ISO/IEC 11572-01, which has been approved as a National Standardof Canada by the Standards Counci
2、l of Canada.ISBN 1-55324-291-2 February 2001The Canadian Standards Association, which The Standards Council of Canada is theoperates under the name CSA International coordinating body of the National Standards system, (CSA), under whose auspices this National Standard a federation of independent, au
3、tonomoushas been produced, was chartered in 1919 and organizations working towards the furtheraccredited by the Standards Council of Canada to the development and improvement of voluntaryNational Standards system in 1973. It is a not-for-profit, standardization in the national interest.nonstatutory,
4、 voluntary membership association The principal objects of the Council are to foster engaged in standards development and certification and promote voluntary standardization as a means activities. of advancing the national economy, benefiting theCSA standards reflect a national consensus of health,
5、safety, and welfare of the public, assisting producers and users including manufacturers, and protecting the consumer, facilitating domestic consumers, retailers, unions and professional and international trade, and furthering internationalorganizations, and governmental agencies. The cooperation in
6、 the field of standards.standards are used widely by industry and commerce A National Standard of Canada is a standard whichand often adopted by municipal, provincial, and federal has been approved by the Standards Council ofgovernments in their regulations, particularly in the Canada and one which
7、reflects a reasonablefields of health, safety, building and construction, and agreement among the views of a number of capablethe environment. individuals whose collective interests provide to theIndividuals, companies, and associations across greatest practicable extent a balance ofCanada indicate
8、their support for CSAs standards representation of producers, users, consumers, anddevelopment by volunteering their time and skills to others with relevant interests, as may be appropriateCSA Committee work and supporting the Associations to the subject in hand. It normally is a standardobjectives
9、through sustaining memberships. The more which is capable of making a significant and timelythan 7000 committee volunteers and the 2000 contribution to the national interest.sustaining memberships together form CSAs total Approval of a standard as a National Standard ofmembership from which its Dire
10、ctors are chosen. Canada indicates that a standard conforms to theSustaining memberships represent a major source of criteria and procedures established by the Standardsincome for CSAs standards development activities. Council of Canada. Approval does not refer to theThe Association offers certifica
11、tion and testing services technical content of the standard; this remains thein support of and as an extension to its standards continuing responsibility of the accrediteddevelopment activities. To ensure the integrity of its standards-development organization.certification process, the Association
12、regularly and Those who have a need to apply standards arecontinually audits and inspects products that bear the encouraged to use National Standards of CanadaCSA Mark. whenever practicable. These standards are subject In addition to its head office and laboratory complex to periodic review; therefo
13、re, users are cautioned in Toronto, CSA has regional branch offices in major to obtain the latest edition from the organizationcentres across Canada and inspection and testing preparing the standard.agencies in eight countries. Since 1919, the Association The responsibility for approving National St
14、andards has developed the necessary expertise to meet its of Canada rests with thecorporate mission: CSA is an independent service Standards Council of Canadaorganization whose mission is to provide an open and 270 Albert Street, Suite 200effective forum for activities facilitating the exchange of O
15、ttawa, Ontario, K1P 6N7goods and services through the use of standards, Canadacertification and related services to meet national andinternational needs.For further information on CSA services, write toCSA International178 Rexdale BoulevardToronto, Ontario, M9W 1R3CanadaAlthough the intended primary
16、 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 AssociationInformation technology Telecommunications and information exchange
17、between systems Private Integrated Services Network Circuit modeCAN/CSA-ISO/IEC 11572-01 bearer services Inter-exchange signalling procedures and protocolFebruary 2001 CSA/1CAN/CSA-ISO/IEC 11572-01Information technology Telecommunications andinformation exchange betweensystems Private IntegratedServ
18、ices Network Circuit modebearer services Inter-exchangesignalling procedures and protocolCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians ser
19、ve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint 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 Telecom
20、munication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Committee (ITU-T).This Standard supersedes CAN/CSA-ISO/IEC 11572-94 (adoption of ISO/IEC 11572:1994).This International Standard was reviewed by the CSA TCIT under the jurisdiction of the StrategicSt
21、eering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on request from 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.
22、 For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standard has been formally approved, without modification, bythese Committees and has been approved as a National Standard of Canada by the Standards Council ofCanada.Februar
23、y 2001 CSA International 2001All 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. Inquiries regarding this National Standard of Canada shouldbe addressed to CSA Internati
24、onal, 178 Rexdale Boulevard, Toronto, Ontario, M9W 1R3.G2cG31G37G28G35G31G24G37G2cG32G31G24G2f G2cG36G32G12G2cG28G26G36G37G24G31G27G24G35G27 G14G14G14G18G1aG15Third edition2000-03-15ISO/IEC 11572:2000(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing p
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27、nsure that the file is suitable for use by ISO member bodies. In the unlikely eventthat a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2000All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or u
28、tilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member bodyin the country of the requester.ISO copyright officeCase postale 56 Gb7 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax
29、 + 41 22 734 10 79E-mail copyrightiso.chWeb www.iso.chii ISO/IEC 2000 All rights reservedISO/IEC 11572:2000(E) ISO/IEC 2000 All rights reserved iiiContents PageForeword viiIntroduction viii1 Scope 12 Conformance 13 Normative references 14 Terms and definitions 15 List of acronyms 36 General principl
30、es 36.1 Protocol model 46.2 Services provided to Call Control 46.3 Services required of the Signalling Carriage Mechanism 57 Protocol Control states 57.1 States for circuit-mode Call Control 57.1.1 Null State (0) 57.1.2 Call Initiated (1) 57.1.3 Overlap Sending (2) 57.1.4 Outgoing Call Proceeding (3
31、) 57.1.5 Call Delivered (4) 57.1.6 Call Present (6) 57.1.7 Call Received (7) 57.1.8 Connect Request (8) 57.1.9 Incoming Call Proceeding (9) 67.1.10 Active (10) 67.1.11 Disconnect Request (11) 67.1.12 Disconnect Indication (12) 67.1.13 Release Request (19) 67.1.14 Overlap Receiving (25) 67.2 States f
32、or layer management 67.2.1 Null State (Rest 0) 67.2.2 Restart Request (Rest 1) 67.2.3 Restart (Rest 2) 68 Call Control 68.1 States for Transit PINX Call Control 78.1.1 TCC_Idle (0) 78.1.2 TCC_Await Digits (1) 78.1.3 TCC_Await Additional Digits (2) 78.1.4 TCC_Overlap (3) 78.1.5 TCC_Incoming Call Proc
33、eeding (4) 78.1.6 TCC_Transit Call Proceeding (5) 78.1.7 TCC_Call Alerting (6) 78.1.8 TCC_Call Active (7) 78.1.9 TCC_Await Incoming Release (8) 78.1.10 TCC_Await Outgoing Release (9) 78.1.11 TCC_Await Two-Way Release (10) 78.1.12 TCC_Await Incoming Disconnect (11) 7ISO/IEC 11572:2000(E)iv ISO/IEC 20
34、00 All rights reserved8.1.13 TCC_Await Outgoing Disconnect (12) 78.1.14 TCC_Await Two-Way Disconnect (13) 89 General procedures 89.1 Use of the services of Signalling Carriage Mechanism 89.1.1 Establishment of a Signalling Carriage Mechanism connection 89.1.2 Transfer of data 89.1.3 Signalling Carri
35、age Mechanism reset 89.1.4 Signalling Carriage Mechanism failure 89.2 Handling of protocol error conditions 89.2.1 Protocol discriminator error 89.2.2 Message too short 89.2.3 Call reference error 89.2.4 Message type or message sequence errors 99.2.5 General information element errors 99.2.6 Mandato
36、ry information element errors 109.2.7 Non-mandatory information element errors 109.2.8 Signalling Carriage Mechanism reset 119.2.9 Signalling Carriage Mechanism failure 119.3 Status and status enquiry protocol procedures 129.3.1 Status enquiry procedure 129.3.2 Receiving a STATUS message 1210 Circui
37、t-switched Call Control procedures 1410.1 Call establishment 1410.1.1 Call request 1410.1.2 Information channel selection 1510.1.3 Overlap sending 1510.1.4 Call proceeding 1610.1.5 Call confirmation indication 1710.1.6 Call connected 1710.1.7 Use of the PROGRESS message 1710.1.8 Failure of call esta
38、blishment 1810.2 Call clearing 1810.2.1 Terminology 1810.2.2 Exception conditions 1810.2.3 Clearing 1910.2.4 Clear collision 1910.3 Call collisions 1910.4 Transit PINX Call Control requirements 1910.4.1 Receipt of address information 2010.4.2 State TCC_Await_Digits 2010.4.3 State TCC_Await_Additiona
39、l_Digits 2110.4.4 State TCC_Overlap 2210.4.5 Channel through connection procedures 2210.4.6 State TCC_Incoming_Call_Proceeding 2310.4.7 State TCC_Transit_Call_Proceeding 2310.4.8 State TCC_Call_Alerting 2410.4.9 State TCC_Call_Active 2410.4.10 Call clearing at a Transit PINX 2410.4.11 Handling of Ba
40、sic Call information elements at a Transit PINX 25ISO/IEC 11572:2000(E) ISO/IEC 2000 All rights reserved v10.5 Originating PINX Call Control requirements 2610.5.1 Transmission of the SETUP message 2610.5.2 Agreement of the information channel 2710.5.3 Receipt of Progress indicators 2710.5.4 Receipt
41、of ALERTING message 2710.5.5 Receipt of CONNECT message 2710.5.6 Call clearing initiated by the Originating PINX 2710.5.7 Receipt of an indication of call clearing 2710.6 Terminating PINX Call Control requirements 2810.6.1 Receipt of the SETUP message 2810.6.2 Transmission of ALERTING message 2810.6
42、.3 Transmission of Progress indicators 2810.6.4 Transmission of CONNECT message 2810.6.5 Call clearing initiated by the Terminating PINX 2910.6.6 Receipt of an indication of call clearing 2910.7 Incoming Gateway PINX Call Control requirements 2910.7.1 Transmission of the SETUP message 2910.7.2 Inter
43、working indications in the SETUP Message 3010.7.3 Agreement of the information channel 3010.7.4 Receipt of Progress indicators 3010.7.5 Receipt of ALERTING message 3010.7.6 Receipt of CONNECT message 3010.7.7 Call clearing initiated by the Incoming Gateway PINX 3110.7.8 Receipt of an indication of c
44、all clearing 3110.8 Outgoing Gateway PINX Call Control requirements 3110.8.1 Receipt of the SETUP message 3110.8.2 Connection of the information channel 3210.8.3 Transmission of interworking indications 3210.8.4 Transmission of ALERTING message 3210.8.5 Transmission of CONNECT message 3210.8.6 Call
45、clearing initiated by the Outgoing Gateway PINX 3310.8.7 Receipt of an indication of call clearing 3311 Procedures for layer management 3311.1 Restart procedures 3311.1.1 Sending RESTART 3311.1.2 Receipt of RESTART 3411.1.3 Restart collision 3412 Protocol timers 3513 Functional definition of message
46、s 3613.1 Messages for general procedures 3713.1.1 STATUS 3713.1.2 STATUS ENQUIRY 3713.2 Messages for Circuit Mode Call Control 3813.2.1 ALERTING 3813.2.2 CALL PROCEEDING 3813.2.3 CONNECT 3813.2.4 CONNECT ACKNOWLEDGE 3913.2.5 DISCONNECT 3913.2.6 INFORMATION 3913.2.7 PROGRESS 3913.2.8 RELEASE 4013.2.9
47、 RELEASE COMPLETE 40ISO/IEC 11572:2000(E)vi ISO/IEC 2000 All rights reserved13.2.10 SETUP 4013.2.11 SETUP ACKNOWLEDGE 4113.3 Messages for layer management 4113.3.1 RESTART 4113.3.2 RESTART ACKNOWLEDGE 4114 General message format and coding of information elements 4114.1 Overview 4214.2 Protocol disc
48、riminator 4214.3 Call reference 4314.4 Message type 4414.5 Other information elements for Basic Call control (codeset 0) 4414.5.1 Coding rules 4414.5.2 Extension of codesets 4614.5.3 Locking shift procedure 4714.5.4 Non-locking shift procedure 4714.5.5 Bearer capability 4814.5.6 Call state 5014.5.7
49、Called party number 5114.5.8 Called party subaddress 5214.5.9 Calling party number 5314.5.10 Calling party subaddress 5314.5.11 Cause 5414.5.12 Channel identification 5714.5.13 Connected number 6014.5.14 Connected subaddress 6014.5.15 High layer compatibility (layers 4-7) 6114.5.16 Low layer compatibility (layers 1-3) 6114.5.17 Progress indicator 6114.5.18 Restart indicator 6214.5.19 Sending complete 6314.6 Information elements of codeset 5 63Annex A (normative) Protocol Implementation Conformance Statement (PICS) for ISO/IEC 11572 64Annex B
