1、STD-IS0 3505b-ENGL 3777 W 4853703 0708382 T43 INTERNATIONAL STANDARD ISO/IEC 15056 First edition 1997-05-1 5 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Transit counter additional ne
2、twork feature Technologies de linformation - Tlcommunications et change dinformation entre systmes - Rseau priv intgration de services - Protocole de signalisation dinterchange - Facilit de rseau additionnelle de compteur de transfert This material is reproduced from IS0 documents under Internationa
3、l Organization for Standardization (EO) Copyright License number IHSIICC11996. Not for resale. No part of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of IS
4、0 (Case postale 56,1211 Geneva 20, Swikerland, Fax +41 22 734 10 79), IHS or the IS0 Licensors members. Reference number ISOIIEC 15056: 1997( E) STD-IS0 35OSb-ENGL 3997 11853903 0708383 788 IsO/IEC 15056:1997 (E) Contents Foreword Introduction 1 Scope 2 Conformance 3 Normative references 4 Definitio
5、ns 4.1 External definitions 5 List of acronyms 6 Signalling protocol for the support of ANF-TC 6.1 AM-TC description 6.2 ANF-TC operational requirements 6.2.1 Requirements on the Originating PINX 6.2.2 Requirements on the Terminating PINX 6.2.3 Requirements on a Transit PINX 6.3 ANF-TC coding requir
6、ements 6.3.1 Transit counter information element 6.3.2 Messages 6.4 ANF-TC signalling procedures 6.4.1 Actions at the Originating PINX 6.4.2 Actions at the Terminating PINX 6.4.3 Actions at a Transit PINX 6.4.4 Actions at an Incoming Gateway PINX 6.4.5 Actions at an Outgoing Gateway PINX 6.5 Protoco
7、l interactions between ANF-TC and other supplementary services and ANFs 6.5.1 Interaction with Calling Name Identification Presentation (SS-CNIP) 6.5.2 Interaction with Connected Name Identification Presentation (SS-CONP) 6.5.3 Interaction with Completion of Calls to Busy Subscribers (SS-CCBS) 6.5.4
8、 Interaction with Completion of Calls on No Reply (SS-CCNR) 6.5.5 Interaction with Call Transfer (SS-CT) 6.5.6 Interaction with Call Forwarding Unconditional (SS-CFU) 6.5.7 Interaction with Call Forwarding Busy (SS-CFB) 6.5.8 Interaction with Call Forwarding No Reply (SS-CFNR) 6.5.9 Interaction with
9、 Call Deflection (SS-CD) 6.5.10 Interaction with Path Replacement (ANF-PR) 6.5.11 Interaction with Call Offer (SS-CO) 6.5.12 Interaction with Do Not Disturb (SS-DND) iv 1 2 2 3 3 3 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 Q ISO/IEC 1997 All rights reserved. Unless otherwise specified, no
10、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 writing from the publisher. ISO/IEC Copyright Office Case postale 56 CH-121 1 Genve 20 Switzerland Printed in Switzerland 11 STD-I
11、S0 3505b-ENGL 1777 i853703 0708384 814 ISO/LEC 15056:lW 03) OISO/IEC 6.5.13 Interaction with Do Not Disturb Ovemde (SS-DNDO) 6.5.14 Interaction with Call Intrusion (SS-CI) 6.5.15 Interaction with Cai1 Interception (ANF-CINT) 6.5.16 Interaction with Recall (SS-RE) 6.5.17 Interaction with Advice of Ch
12、arge (SS-AOC) Annex A - Protocol Implementation Conformance Statement (PICS) proforma . U1 STD-IS0 1505b-ENGL 1777 4853703 0708385 750 = IsO/IEC 15056:1997 (E) OISO/IEC Foreword IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the
13、specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. IS0 and IEC technic
14、al committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work. In the field of information technology, IS0 and IEC have established a joint technical committee, ISOAEC JTC 1. Draft
15、 International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. International Standard ISO/IEC 15056 was prepared by ECMA (as ECMA-225) a
16、nd was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISOAEC JTC 1, Information technology, in parallel with its approval by national bodies of IS0 and IEC. Annex A forms an integral part of this International Standard. iv STD-ISO 2505b-ENGL 1997 4852703 070BLBb b97 =
17、OISOAEC ISODEC 15056:1997 (E) Introduction This International Standard is one of a series of standards defining services and signalling protocols applicable to Private Integrated Services Networks. The series uses the ISDN concepts as developed by ITU-T (formerly CCITT) and is also within the framew
18、ork of standards for open systems interconnection as defined by ISO. This International Standard specifies the signalling protocol for use at the Q reference point in support of the Transit Counter additional network feature. The International Standard is based upon the practical experience of ECMA
19、member companies and the results of their active and continuous participation in the work of ISOAEC JTC 1, ITU-T, ETSI and other international and national standardization bodies. It represents a pragmatic and widely based consensus. V STD*ISO 3505h-ENGL 1997 4853703 0708187 523 INTERNATIONAL STANDA
20、RD O ISO/IEC ISODEC 15056: 1997 (E) Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Transit counter additional network feature 1 Scope This International Standard specifies the signallin
21、g protocol for the support of the Transit Counter additional network feature (ANF-TC) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a Private Integrated Services Network (PISN). ANF-TC is a feature that limits the number of Transit P
22、INXs that a call setup request may be routed through e.g., to protect the network against indefinite looping. The Q reference point is defined in ISO/IEC 11 579- 1. Service specifications are produced in three stages and according to the method specified in CCIIT Recommendation I. 130. This Internat
23、ional Standard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISOAEC 15055. The signalling protocol for ANF-TC operates in association with the signalling protocols for basic circuit switched call co
24、ntrol (as specified in ISO/IEC 1 1572) and call independent (connection oriented) signalling connections (as specified in ISO/IEC 11582). This International Standard also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between ANF-TC and
25、 other supplementary services and ANFs. This International Standard is applicable to PINXs that can interconnect to form a PISN. 2 Conformance In order to conform to this International Standard, a PINX shall satisfy the requirements identified in the Protocol Implementation Conformance Statement (PI
26、CS) proforma in annex A. Conformance to this International Standard includes conforming to those clauses that specify protocol interactions between ANF-TC and other supplementary services and ANFs for which signalling protocols at the Q reference point are supported in accordance with the stage 3 st
27、andards concerned. 3 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agree
28、ments based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. ISOiEC 1 1572: 1997, Information technology - Telecomm
29、unications and information exchange between systems - Private Integrated Services Network - Circuit mode bearer services - Inter-exchange signalling procedures and protocol. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - C
30、ircuit-mode 64 kbith bearer services - Service description, functional capabilities and information jlows. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Part I: Reference configuration for PISN Exchanges (PlNX). Informati
31、on technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Generic functional protocol for the support of supplementary services - Inter-exchange signalling procedures and protocol. Information technology - Telecommunications and information e
32、xchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call transfer supplementary service. ISOIIEC 1 1574: 1994, ISOAEC 1 1579- 1 1994, ISO/IEC 1 1582: 1995, ISOIIEC 13869: 1995, 1 STD-IS0 L505b-ENGL 1997 = Li851903 0708188 4bT ISOAEC 15056:1997 (E) OIS
33、O/IEC ISO/IEC 13870: 1995, ISO/IEC 13873:1995, ISO/IEC 13874: 1995, ISO/IEC 15054:1997, ISO/IEC 15055:1997, CCIT Rec. 1.1 12:1988, CCITT Rec. I.130:1988, CCIT Rec. 1.210:1988, 4 Definitions Information technology - Telecommunications and information exchange between systems - Private Integrated Serv
34、ices Network - Inter-exchange signalling protocol - Call completion supplementary services. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call diversion supplementary services. Informa
35、tion technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Path replacement additional network feature. Information technology - Telecommunications and information exchange between systems - Private Integ
36、rated Services Network - Inter-exchange signalling protocol - Call interception additional network feature. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Transit cou
37、nter additional network feature. Vocabulary of terms for ISDNs. Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN. Principles of telecommunication services supported by an ISDN and the means to describe them. For the purposes of th
38、is International Standard, the following definitions apply. 4.1 External definitions This International Standard uses the following terms defined in other documents: - Basic Service - Call, Basic Call - Call Independent Signalling Connection - CC Call - Cooperating PINX - Diverted-to PINX - Diverted
39、to User - Incoming Gateway PINX - Incoming Side - Inter-PTNX Link - Originating PINX - Outgoing Gateway PINX - Outgoing Side - Path Reservation - Preceding PINX - Primary PINX - Private Integrated Services Network (PISN) - Private Integrated Services Network Exchange (PINX) - Requesting PINX - Rero
40、uteing PINX - Secondary PINX - Signalling - Subsequent PINX - Supplementary Service - Terminating PINX - Transit PINX (CCITT Rec. 1.210) (ISO/IEC 11582) (ISO/IEC 11582) (ISO/IEC 13870) (ISO/IEC 13874) (ISO/IEC 13873) (ISO/IEC 13873) (ISO/IEC 11572) (ISO/IEC 11572) (ISO/IEC 11572) (ISO/IEC 11572) (IS
41、O/IEC 11572) (ISO/IEC 11572) (ISO/IEC 13870) (ISO/IEC 11572) (ISO/IEC 13869) (ISO/IEC 11579- 1) (ISO/IEC 11579- 1) (ISO/IEC 13874) (ISO/IEC 13873) (ISO/IEC 13869) (CCITT Rec. I. 1 12) (ISO/IEC 11572) (CCITT Rec. 1.210) (ISO/IEC 11572) (ISO/IEC 11572) 2 STDOIS0 L505b-ENGL 1777 4B53703 0708387 3Tb D I
42、SOAEC 15056:lW (E) OISOAEC 5 List of acronyms ANF Additional Network Feature ANF-PR ANF-TC ISDN Integrated Services Digital Network PICS Protocol Implementation Conformance Statement PINX PISN Private Integrated Services Network ss-cc Call Completion Supplementary Services SS-CCBS ss-CCNR SS-CD Cali
43、 Deflection Supplementary Service ss-CFU ss-CFB ss-CFNR SS-CT Call Transfer Supplementary Service SS-DIV Diversion Supplementary Services Path Replacement Additional Network Feature Transit Counter Additional Network Feature Private Integrated Services Network Exchange Completion of Calls to Busy Su
44、bscribers Supplementary Service Completion of Calls on No Reply Supplementary Service Call Forwarding Unconditional Supplementary Service Call Forwarding Busy Supplementary Service Call Forwarding No Reply Supplementary Service 6 6.1 ANF-TC description ANF-TC is invoked when it is desired to limit t
45、he number of Transit PINXs that a cd setup request may be routed through. ANF-TC may be used in conjunction with either a Basic call setup request or a setup request for a call independent (connection oriented) signalling connection. Use of ANF-TC is a network option. The criteria for determining: -
46、 when ANF-TC should be invoked; - the number of PINXs through which a call may be routed; and, - the means by which the feature is activated or deactivated are network dependent and outside the scope of this International Standard. 6.2 ANF-TC operational requirements 6.2.1 Call establishment procedu
47、res for the outgoing side of an inter-PINX link and call release procedures, as specified in ISOAEC 1 1572, shall apply. If the PINX supports connection-oriented APDU transport, then the generic procedures for the call independent control (connection oriented) of supplementary services, as specified
48、 in ISOAEC 11582 for an Originating PiNX, shall apply. 6.2.2 Call establishment procedures for the incoming side of an inter-PINX link and call release procedures, as specified in ISOAEC 11572, shall apply. If the PINX supports connection-oriented APDU transport, then the generic procedures for the
49、call independent control (connection oriented) of supplementary services, as specified in ISOAEC 11582 for a Terminating PINX, shali apply. 6.2.3 Basic call procedures for call establishment and call clearing at a Transit PINX, as specified in ISO/IEC 11572 shall apply. If the PINX supports connection-oriented APDU transport, then the generic procedures for the call independent control (connection oriented) of supplementary services, as specified in ISOAEC 11582 for a Transit PINX, shall apply. 6.3 ANF-TC coding requirements 6.3.1 Tra
