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ISO_IEC_115722000E.pdf

1、Reference numberISO/IEC 11572:2000(E)ISO/IEC 2000INTERNATIONALSTANDARDISO/IEC11572Third edition2000-03-15Information technology Telecommunications and informationexchange between systems PrivateIntegrated Services Network Circuitmode bearer services Inter-exchangesignalling procedures and protocolTe

2、chnologies de linformation Tlcommunications et changedinformation entre systmes Rseau priv intgration deservices Services porteurs en mode circuit Procdures etprotocole de signalisation dinterchangeISO/IEC 11572:2000(E)PDF disclaimerThis PDF file may contain embedded typefaces.In accordance with Ado

3、bes licensing policy,this file may be printed or viewed but shall notbe edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.In downloading thisfile,parties accept therein the responsibility of not infringing Adobes licensing policy.The

4、ISO Central Secretariat accepts no liability in thisarea.Adobe is a trademark of Adobe Systems Incorporated.Details of the software products used to create this PDF file can be found in the General Info relative to the file;the PDF-creation parameterswere optimized for printing.Every care has been t

5、aken to ensure 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

6、or utilized 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?CH-1211 Geneva 20Tel.+41 22 749 01 11Fax+41 2

7、2 734 10 79E-mail copyrightiso.chWeb www.iso.chPrinted in Switzerlandii ISO/IEC 2000 All rights reservedISO/IEC 11572:2000(E)ISO/IEC 2000 All rights reservediiiContentsPageForewordviiIntroductionviii1Scope12Conformance13Normative references14Terms and definitions15List of acronyms36General principle

8、s36.1Protocol model46.2Services provided to Call Control46.3Services required of the Signalling Carriage Mechanism57Protocol Control states57.1States for circuit-mode Call Control57.1.1Null State(0)57.1.2Call Initiated(1)57.1.3Overlap Sending(2)57.1.4Outgoing Call Proceeding(3)57.1.5Call Delivered(4

9、)57.1.6Call Present(6)57.1.7Call Received(7)57.1.8Connect Request(8)57.1.9Incoming Call Proceeding(9)67.1.10Active(10)67.1.11Disconnect Request(11)67.1.12Disconnect Indication(12)67.1.13Release Request(19)67.1.14Overlap Receiving(25)67.2States for layer management67.2.1Null State(Rest 0)67.2.2Restar

10、t Request(Rest 1)67.2.3Restart(Rest 2)68Call Control68.1States for Transit PINX Call Control78.1.1TCC_Idle(0)78.1.2TCC_Await Digits(1)78.1.3TCC_Await Additional Digits(2)78.1.4TCC_Overlap(3)78.1.5TCC_Incoming Call Proceeding(4)78.1.6TCC_Transit Call Proceeding(5)78.1.7TCC_Call Alerting(6)78.1.8TCC_C

11、all Active(7)78.1.9TCC_Await Incoming Release(8)78.1.10TCC_Await Outgoing Release(9)78.1.11TCC_Await Two-Way Release(10)78.1.12TCC_Await Incoming Disconnect(11)7ISO/IEC 11572:2000(E)iv ISO/IEC 2000 All rights reserved8.1.13TCC_Await Outgoing Disconnect(12)78.1.14TCC_Await Two-Way Disconnect(13)89Gen

12、eral procedures89.1Use of the services of Signalling Carriage Mechanism89.1.1Establishment of a Signalling Carriage Mechanism connection89.1.2Transfer of data89.1.3Signalling Carriage Mechanism reset89.1.4Signalling Carriage Mechanism failure89.2Handling of protocol error conditions89.2.1Protocol di

13、scriminator error89.2.2Message too short89.2.3Call reference error89.2.4Message type or message sequence errors99.2.5General information element errors99.2.6Mandatory information element errors109.2.7Non-mandatory information element errors109.2.8Signalling Carriage Mechanism reset119.2.9Signalling

14、Carriage Mechanism failure119.3Status and status enquiry protocol procedures129.3.1Status enquiry procedure129.3.2Receiving a STATUS message1210Circuit-switched Call Control procedures1410.1Call establishment1410.1.1Call request1410.1.2Information channel selection1510.1.3Overlap sending1510.1.4Call

15、 proceeding1610.1.5Call confirmation indication1710.1.6Call connected1710.1.7Use of the PROGRESS message1710.1.8Failure of call establishment1810.2Call clearing1810.2.1Terminology1810.2.2Exception conditions1810.2.3Clearing1910.2.4Clear collision1910.3Call collisions1910.4Transit PINX Call Control r

16、equirements1910.4.1Receipt of address information2010.4.2State TCC_Await_Digits2010.4.3State TCC_Await_Additional_Digits2110.4.4State TCC_Overlap2210.4.5Channel through connection procedures2210.4.6State TCC_Incoming_Call_Proceeding2310.4.7State TCC_Transit_Call_Proceeding2310.4.8State TCC_Call_Alerting2410.4.9State TCC_Call_Active2410.4.10 Call clearing at a Transit PINX2410.4.11 Handling of Basic Call information elements at a Transit PINX25ISO/IEC 11572:2000(E)ISO/IEC 2000 All rights reserved

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