1、INTERNATIONAL STANDARD ISO/IEC 14845 First edition 1996-09-I 5 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call intrusion supplementary service Technologies de /in
2、formation - T&!communications et Bchange dinformation entre systkmes - RBseau pi-iv6 3 intt5gration de services - Spkcification, mod&/e fonctionnel et d&bit dinformation - Service suppEmentaire dintrusion dappel Reference number ISO/IEC 14845:1996(E) ISO/IEC 14845:1996 (E) Contents Foreword iv Intro
3、duction 1 Scope 2 Conformance V 1 3 Normative references 1 1 4 Definitions 2 4.1 External definitions 4.2 Other definitions 5 List of acronyms 6 SS-CI stage 1 specification 6.1 Description 6.1.1 General description 6.1.2 Qualifications on applicability to telecommunication services 5 5 6.2 Procedure
4、s 5 6.2.1 Provision/withdrawal 6.2.2 Normal procedures 6.2.3 Exceptional procedures 5 5 8 6.3 Interactions with other supplementary services and ANFs 8 6.3.1 Calling Line Identification Presentation (SS-CLIP) 8 6.3.2 Connected Line Identification Presentation (SS-COLP) 8 6.3.3 Calling/Connected Line
5、 Identification Restriction (SS-CLIR) 8 6.3.4 Calling Name Identification Presentation (SS-CNIP) 8 6.3.5 Connected Name Identification Presentation (SS-CONP) 8 6.3.6 Calling/Connected Name Identification Restriction (SS-CNIR) 9 6.3.7 Completion of Calls to Busy Subscriber (SS-CCBS) 9 6.3.8 Completio
6、n of Calls on No Reply (SS-CCNR) 9 6.3.9 Call Transfer (SS-CT) 9 6.3.10 Call Forwarding Unconditional (SS-CFU) 9 6.3.11 Call Forwarding Busy (SS-CFB) 9 6.3.12 Call Forwarding No Reply (SS-CFNR) 9 6.3.13 Call Deflection (SS-CD) 10 6.3.14 Path Replacement (ANF-PR) 10 6.3.15 Do Not Disturb (DND) 10 6.3
7、16 Do Not Disturb Override (DNDO) 10 6.3.17 Call Offer (CO) 10 6.4 Interworking considerations 10 8 ISOA EC 1996 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 a
8、nd microfilm, without per- mission in writing from the publisher. ISO/IEC Copyright Office * Case Postale 56 * CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii ISOAEC 148451996 (E) 6.5 Overall SDL 10 7 SS-CI stage 2 specification 7.1 Functional model 19 19 7.1.1 Functional model description
9、 7.1.2 Description of functional entities 7.1.3 Relationship of functional model to basic call functional model 7.2 Information flows 19 20 21 21 7.2.1 Definition of information flows 21 7.2.2 Relationship of information flows to basic call information flows 27 7.2.3 Examples of information flow seq
10、uences 30 7.3 Functional entity actions 7.3.1 Functional entity actions of FE1 7.3.2 Functional entity actions of FE2 7.3.3 Functional entity actions of FE3 73.4 Functional entity actions of FE4 7.3.5 Functional entity actions of FE5 40 40 41 42 43 43 7.4 Functional entity behaviour 7.4.1 Behaviour
11、of FE1 7.4.2 Behaviour of FE2 7.4.3 Behaviour of FE3 7.4.4 Behaviour of FE4 7.4.5 Behaviour of FE5 43 43 52 62 70 71 7.5 Allocation of functional entities to physical equipment 72 7.6 Interworking considerations 72 . . . 111 ISO/IEC 14845:1996 (E) OISO/IEC Foreword IS0 (the International Organizatio
12、n for Standardization) and IEC (the International Electrotechnical Commission) form the 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 respectiv
13、e organization to deal with particular fields of technical activity. IS0 and IEC technical 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 t
14、echnology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft 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 c
15、asting a vote. International Standard ISO/IEC 14845 was prepared by ECMA (as Standard ECMA-202) and was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information fechno2ogy, in parallel with its approval by national bodies of IS0 and IEC. iv OISO/IEC IS
16、OAEC 14845:19!% (E) Introduction This International Standard is one of a series of International Standards defining services and signalling protocols applicable to Private Integrated Services Networks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the framework of Inter
17、national Standards for Open Systems Interconnection as defined by ISOflEC. This particular International Standard specifies the Call Intrusion supplementary service. INTERNATIONAL STANDARD ISOfiEC ISO/IEC 14845: 1996 (E) Information technology - Telecommunications and information exchange between sy
18、stems - Private Integrated Services Network - Specification, functional model and information flows - Call intrusion supplementary service 1 Scope This International Standard specifies the Call Intrusion supplementary service (SS-CI), which is applicable to various basic services supported by Privat
19、e Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. Call Intrusion (SS-CI) is a supplementary service which, on request from the served user, enables the served user to establish communication with a busy called user (user B) by breaking into an established call bet
20、ween user B and a third user (user Cl. Supplementary service specifications are produced in three stages, according to the method described in CCITI Recommendation 1.130. This International Standard contains the stage 1 and stage 2 specifications of SS-CI. The stage 1 specification (clause 6) specif
21、ies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) identifies the functional entities involved in the supplementary service and the information flows between them. Note - For this International Standard, stage 2 does not consider the split of functionality
22、between a functional terminal at user B and the local PINX. Terminal functions and local PINX functions at user B are included in the same Functional Entity. 2 Conformance In order to conform to this International Standard, a stage 3 International Standard shall specify signalling protocols and equi
23、pment behaviour that are capable of being used in a PISN which supports the supplementary service specified in this International Standard. This means that, to claim conformance, a Stage 3 International Standard is required to be adequate for the support of those aspects of clause 6 (stage 1) and cl
24、ause 7 (stage 2) which are relevant to the interface or equipment to which the Stage 3 International Standard applies. 3 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publica
25、tion, the editions indicated were valid. All standards are subject to revision, and parties to agreements 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 register
26、s of currently valid International Standards. ISO/IEC 11571:1994, ISO/IEC 11574: 1994, ISO/IEC 11579- 1: 1994, ISO/IEC 13863: 1995, ISO/IEC 13864:1995, ISO/IEC 13865:1995, ISO/IEC 13866:1995, Information technology - Telecommunications and information exchange between systems - Numbering and sub-add
27、ressing in private integrated services networks. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode 64 kbit/s bearer services - Service description, functional capabilities and information flows. Information techn
28、ology - Telecommunications and information exchange between systems - Private integrated services network - Part 1: Reference configuration for PISN Exchanges (PINX). Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specific
29、ation, functional model and information flows - Path replacement additional network feature. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Name identification supple
30、mentary services. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call transfer supplementary service. Information technology - Telecommunications and information exch
31、ange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call completion supplementary services. 1 ISO/IEC 148451996 (E) OISO/IEC ISO/IEC 13872:1995, ISO/IEC 14136: 1995, ISO/IEC 14841: 1996, ISO/IEC 14842: 1996, CCIIT Rec. I.1 12:1988, CCI
32、lT Rec. 1.130: 1988, CCIITRec. 1.210:1988, CCITT Rec. 1.221: 1988, CCITT Rec. Z. 100: 1988, 4 Definitions Information technology - Telecommunications and information exchange between systems Private Integrated Services Network - Specification, functional model and information flows - Call diversion
33、supplementary services. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional models and information flows - Identification supplementary services. Information technology - Telecommunications and informa
34、tion exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call offer supplementary service. Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification,
35、functional model and information flows - Do not disturb and do not disturb override supplementary services. Vocabulary of terms for ISDNs (Blue Book). Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN (Blue Book). Principles of tel
36、ecommunication services supported by an ISDN and the means to describe them (Blue Book). Common specific characteristics of services, Definition of par. 3 “busy” in an ISDN (Blue Book). Specification and Description Language (Blue Book). For the purposes of this International Standard, the following
37、 definitions apply. 4.1 External definitions This International Standard uses the following terms defined in other documents: - Basic service - Calling Party Name - Connection - Integrated Services Digital Network - Name - Network Determined User Busy - Number - Private Integrated Services Network (
38、PISN) - Private Integrated Services Network Exchange (PINX) - Service - Signalling - Subaddress - Supplementary Service - User - User Determined User Busy (CCITT Rec. 1.210) (ISO/IEC 13864) (CCITTRec. 1.112) (CCIlT Rec. I.1 12) (ISOLIEC 13864) (CCIIT Rec. 1.221) (ISO/IEC 11571) (ISO/IEC 11579-l) (IS
39、OLIEC 11579- 1) (CCIlT Rec. I. 112) (CCITT Rec. I. 112) (ISO/IEC 11571) (CCITT Rec. 1.210) (ISO/IEC 11574) (CCIlT Rec. 1.221) This International Standard refers to the following basic call functional entity (FEs) defined in ISO/IEC 11574: - Call Control (CC) - Call Control Agent (CCA) 2 OISO/IEC ISO
40、/IEC 14845: 1996 (E) This International Standard refers to the following basic call inter-FE relationships defined in ISO/IEC 11574: - rl - r2 - r3 This International Standard refers to the following basic call information flows defined in ISO/IEC 11574: - Disconnect request/indication - Release req
41、uest/indication - Release response/confirmation - Setup request/indication - Setup response/confirmation. This International Standard refers to the following basic call information flow service elements defined in ISO/IEC 11574: - Destination Number - Connection type. This International Standard ref
42、ers to the following information flow elements defined in ISOLIEC 14136: - Originating number - Originating subaddress. 4.2 Other definitions busy : A property of a user for whom either a Network Determined User Busy or User Determined User Busy condition exists. conference type connection : A conne
43、ction between the served user, user B and user C, where all users have user information connection with each other. consultation : Invocation of SS-CI after the calling user has been informed that a call has failed because of busy at the destination. consultation timer : A timer governing the time i
44、n which the calling user is allowed to request invocation of SS-CI after being informed that a call has failed because of busy at the destination. The duration of the timer is an implementation option. established call : The active call that is selected for intruding on. forced release : The release
45、 of the established call on request from the served user during the intrusion state. immediate invocation : Invocation of SS-CI as part of the initial call set up. impending intrusion state : The condition of an established call and an intruding call after provision of an impending intrusion warning
46、 notification and before establishment of communication between the served user and user B. impending intrusion warning notification : A notification provided before communication is established between the served user and user B. implementation option : An option for the implementor of the service
47、to include or not to include in the service providing system. intruding call : A call in which the served user requests SS-CI. intrusion state : The condition of an established call after establishment of communication between the served user and user B and prior to termination of SS-CI or invocatio
48、n of wait on busy. intruding call connected notification : A notification provided on establishment of communication between the served user and user B. isolation : The breaking of the user information connection to and from user C during the intrusion state. path retention : The retaining of the ne
49、twork connection between the originating CC and the destination CC so that a supplementary service (such as SS-CI) can be invoked without establishing a new connection. 3 ISO/IEC 14845:1996 (E) OISO/-IEC served user :The user who requests SS-CI. time to intrusion : The duration of the impending intrusion state. user B : The wanted user that is subject to the call intrusion. user C : The other user in the established call. wait on busy state : A state that can be entered from the intrusion state and in which the intruding call is disconnected from user B and is waiting for user B to
