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1、BRITISH STANDARD BS ISO/IEC 13242:1997 Information technology Telecommunications and information exchange between systems Private Integrated Services Network Specification, functional model and information flows Route Restriction Class additional network feature ICS 33.040.40; 35.110 Licensed Copy:
2、sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 This British Standard, having been prepared under the direction of the DISC Board, was published under the authority of the Standards Board and comes into effect on 15 December 1997 BSI
3、04-1999 ISBN 0 580 28852 8 National foreword This British Standard reproduces verbatim ISO/IEC 13242:1997 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/6, Data communications, which has the responsibility to: aid enqui
4、rers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations re
5、presented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the ot
6、her, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index
7、”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself con
8、fer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, page i and ii, the ISO/IEC title page, pages ii to iv, pages 1 to 10 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. Thi
9、s will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 BSI 04-1999i Contents Page National foreword
10、Inside front cover Foreword iv Text of ISO/IEC 132421 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffiel
11、dun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 ii BSI 04-1999 Contents Page Forewordiv Introduction1 1Scope1 2Conformance1 3Normative references1 4Definitions1 4.1External definitions1 4.2Additional network feature2 4.3Call, Basic Call2 4.4R
12、oute Access Class (RAC)2 4.5Facility Restriction Class (FRC)2 4.6Facility2 5List of acronyms2 6ANF-RRC Stage 1 specification2 6.1Description2 6.1.1General description2 6.1.2Qualifications on applicability to telecommunication services2 6.2Procedure2 6.2.1Provision/Withdrawal2 6.2.2Normal procedures3
13、 6.2.2.1Activation/Deactivation/Registration/Interrogation3 6.2.2.2Invocation and operation3 6.2.3Exceptional procedures3 6.2.3.1Activation/Deactivation/Registration/Interrogation3 6.2.3.2Invocation and operation3 6.3Interaction with other Supplementary Services and ANFs3 6.3.1Calling Line Identific
14、ation Presentation (SS-CLIP)3 6.3.2Connected Line Identification Presentation (SS-COLP)3 6.3.3Calling/connected Line Identification Restriction (SS-CLIR)3 6.3.4Calling Name Identification Presentation (SS-CNIP)3 6.3.5Connected Name Identification Presentation (SS-CONP)3 6.3.6Calling/connected Name I
15、dentification Restriction (SS-CNIR)3 6.3.7Completion of Calls to Busy Subscriber (SS-CCBS)3 6.3.8Completion of Calls on No Reply (SS-CCNR)3 6.3.9Call Transfer (SS-CT)3 6.3.10Call Forwarding Unconditional (SS-CFU)3 6.3.11Call Forwarding Busy (SS-CFB)3 6.3.12Call Forwarding No Reply (SS-CFNR)3 6.3.13C
16、all Deflection (SS-CD)3 6.3.14Path Replacement (ANF-PR)3 6.3.15Call Offer (SS-CO)3 6.3.16Call Intrusion (SS-CI)3 6.3.17Do Not Disturb (SS-DND)3 6.3.18Do Not Disturb Override (SS-DNDO)3 6.4Interworking considerations3 6.5Overall SDL4 7ANF-RRC Stage 2 specification4 7.1Functional model4 7.1.1Functiona
17、l model description4 7.1.2Description of functional entities5 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 BSI 04-1999iii Page 7.1.2.1RRC initiate, FE15 7.1.2.2RRC execute, FE25 7.1.3Relationship of functional model
18、to basic call functional model5 7.2Information flows5 7.2.1Definition of information flows5 7.2.1.1ra-RRC (Route Restriction Class)5 7.2.2Relationship of information flows to basic call information flows5 7.2.3Examples of information flow sequences6 7.2.3.1Normal operation of ANF-RRC6 7.2.3.2Unavail
19、able appropriate outgoing facility6 7.3Functional entity actions7 7.3.1Functional entity actions of FE17 7.3.2Functional entity actions of FE27 7.4Functional entity behaviour7 7.4.1Behaviour of FE17 7.4.2Behaviour of FE27 7.5Allocation of functional entities to physical equipment7 7.6Interworking co
20、nsiderations7 Annex A (informative) Examples of the application of ANF-RRC10 Figure 1 ANF-RRC, Overall SDL4 Figure 2 Functional model for ANF-RRC5 Figure 3 Example relationship between models for ANF-RRC and basic call5 Figure 4 Information flow sequence normal operation of ANF-RRC6 Figure 5 Informa
21、tion flow sequence unavailable appropriate outgoing facility6 Figure 6 ANF-RRC, SDL for functional entity FE18 Figure 7 ANF-RRC, SDL for functional entity FE29 Table 1 Content of ra-RRC5 Table 4 Scenarios for the Allocation of FEs to Physical Equipment7 Table A.1 Users and the associated RACs10 Tabl
22、e A.2 Example of Hierarchical FRCs10 Table A.3 Example of Non-Hierarchical FRCs10 Descriptors: Data processing, information interchange, telecommunications, network interconnection, telecommunication network, ISDN, private network, specifications, models. Licensed Copy: sheffieldun sheffieldun, na,
23、Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 iv BSI 04-1999 Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies tha
24、t are members of ISO 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. ISO and IEC technical committees collaborate in fields of mutual interest. Other interna
25、tional organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee ar
26、e 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 13242 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Tele
27、communications and information exchange between systems. Annex A of this International Standard is for information only. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 BSI 04-19991 Introduction This International Stand
28、ard is one of a series of 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 Standards for Open Systems Interconnection as defined by ISO/IEC. This parti
29、cular International Standard specifics the Route Restriction Class additional network feature. 1 Scope This International Standard specifies the Route Restriction Class additional network feature (ANF-RRC), which is applicable to various basic services supported by Private Integrated Services Networ
30、ks (PISN). Basic services are specified in ISO/IEC 11574. ANF-RRC permits a Route Access Class (RAC) to be associated with a call to indicate its entitlement to use certain facilities during routeing. Additional network feature specifications are produced in three stages, according to the method des
31、cribed in CCITT Recommendation I.130 for supplementary services. This International Standard contains the stage 1 and stage 2 specifications of ANF-RRC. The stage 1 specification (clause 6) specifies the feature as seen by an entity which generates, receives, and acts on the RAC. The stage 2 specifi
32、cation (clause 7) identifies the functional entities involved in the feature and the information flows between them. 2 Conformance In order to conform to this International Standard, a Stage 3 Standard shall specify signalling protocols and equipment behaviour that are capable of being used in a PIS
33、N which supports the feature specified in this International Standard. This means that, to claim conformance, a Stage 3 Standard is required to be adequate for the support of those aspects of clause 6 and clause 7 which are relevant to the interface or equipment to which the Stage 3 Standard applies
34、. 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 agreements based on th
35、is International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO/IEC 11571:1994, Information technology Telecommunications and infor
36、mation exchange between systems Numbering and sub-addressing in private integrated services networks. ISO/IEC 11574:1994, Information technology Telecommunications and information exchange between systems Private Integrated Services Network Circuit-mode 64 kbit/s bearer services Service description,
37、 functional capabilities and information flows. ISO/IEC 11579-1:1994, Information technology Telecommunications and information exchange between systems Private Integrated Services Network Part 1: Reference configuration for PISN exchanges (PINX). CCITT Rec. I.112 (1988), Vocabulary of Terms for ISD
38、Ns. CCITT Rec. I.130 (1988), Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN. CCITT Rec. I.210 (1988), Principles of telecommunication services supported by an ISDN and the means to describe them. CCITT Rec. Z.100 (1988), Specifi
39、cation and Description Language. 4 Definitions For the purposes of this International Standard, the following definitions apply. 4.1 External Definitions This International Standard uses the following terms defined in other documents. Basic service(CCITT Rec. I.210) Private Integrated Services Netwo
40、rk (PISN) (ISO/IEC 11579-1) Private Integrated Services Network Exchange (PINX) (ISO/IEC 11579-1) Service(CCITT Rec. I.112) Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 13242:1997 2 BSI 04-1999 This International Standard refer
41、s to the following basic call functional entity (FEs) defined in ISO/IEC 11574. This International Standard refers to the following basic call inter-FE relationships defined in ISO/IEC 11574. This International Standard refers to the following basic call information flows defined in ISO/IEC 11574. 4
42、.2 Additional Network Feature a capability, over and above that of a basic service, provided by a PISN, but not directly to a PISN user 4.3 Call, Basic Call an instance of the use of a basic service 4.4 Route Access Class (RAC) an integer representation of the entitlement of a call to use certain fa
43、cilities during routeing 4.5 Facility Restriction Class (FRC) restrictions on access to a particular facility, expressed in terms of the RAC values that are entitled to use the facility and those that are not 4.6 Facility a physical or logical entity that a call can use in order to achieve routeing
44、to its destination NOTEExamples of facilities include international public network connections, long distance (national) public network connections, particular public networks, and particular inter-PINX links. 5 List of acronyms 6 ANF-RRC stage 1 specification 6.1 Description 6.1.1 General descripti
45、on ANF-RRC permits an RAC to be associated with a call to indicate its entitlement to use certain facilities during routeing. 6.1.2 Qualifications on applicability to telecommunication services This additional network feature is applicable to all basic services defined in ISO/IEC 11574. 6.2 Procedur
46、e 6.2.1 Provision/Withdrawal For the provision of ANF-RRC within a PISN, each potential source of calls (e.g. each user) shall be assigned an RAC. In addition, each facility whose use is to be controlled by ANF-RRC shall be assigned an FRC. An FRC shall consist of either: one or more RAC values that
47、 are entitled to use the facility; or one or more RAC values that are not entitled to use the facility. Some PISNs may treat RAC values as levels, whereby each RAC value other than the lowest numbered RAC value is entitled to use all facilities that the value below can use, plus some specific additi
48、onal facilities. Any PINX implementation shall be capable of providing ANF-RRC in this way and some PINX implementations may be capable of providing ANF-RRC only in this way (see Annex A). Signalling(CCITT Rec. I.112) Supplementary Service(CCITT Rec. I.210) User(ISO/IEC 11574) Call Control (CC). r2
49、SETUP REJECT request/indication SETUP request/indication. ANFAdditional Network Feature ANF-RRCANF Route Restriction Class CCCall Control (functional entity) FEFunctional Entity FRCFacility Restriction Class ISDNIntegrated Services Digital Network PINXPrivate Integrated services Network Exchange PISNPrivate Integrated Services Network RACRoute Access Class SDLSpecification and Description Language Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 21 08:51:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS