1、 Standard ECMA-142 3rd Edition - December 2001 Standardizing Information and Communication Systems Private Integrated Services Network (PISN) - Circuit Mode 64kbit/s Bearer Services - Service Description, Functional Capabilities and Information Flows Phone: +41 22 849.60.00 - Fax: +41 22 849.60.01 -
2、 URL: http:/www.ecma.ch - Internet: helpdeskecma.ch . Standard ECMA-142 3rd Edition - December 2001 Standardizing Information and Communication Systems Private Integrated Services Network (PISN) - Circuit Mode 64kbit/s Bearer Services - Service Description, Functional Capabilities and Information Fl
3、ows (BCSD) Phone: +41 22 849.60.00 - Fax: +41 22 849.60.01 - URL: http:/www.ecma.ch - Internet: helpdeskecma.ch IW Ecma-142.doc 14-01-02 08,52 . Brief History This Standard is one of a series of ECMA Standards defining services and signalling protocols applicable to Private Integrated Services Netwo
4、rks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the framework of International Standards for Open Systems Interconnection as defined by ISO/IEC. This particular Standard contains specifications of basic services. This Standard is based upon the practical experience o
5、f ECMA member companies and the results of their active and continuous participation in the work of ISO/IEC JTC1, ITU-T, ETSI and other international and national standardization bodies. It represents a pragmatic and widely based consensus. Compared to the 2nd Edition of Standard ECMA-142 (published
6、 by ECMA in June 1997), this 3rd Edition is completely aligned with International Standard ISO/IEC 11574:2000(E). Adopted as 3rd Edition of Standard ECMA-142 by the General Assembly of December 2001. . - i - Table of contents Section 1: General 1 1 Scope 1 2 References (normative) 1 3 Definitions 2
7、3.1 call 2 3.2 intervening network (IVN) 2 3.3 mixed public/private ISDN 2 3.4 network call control entity 2 3.5 Private Integrated Services Network (PISN) 2 3.6 Private Integrated Services Network Exchange (PINX) 3 3.7 PISN user 3 3.8 service Telecommunication services 3 3.9 user 3 4 Symbols and ab
8、breviations 3 5 Provision of services by a PISN 4 5.1 Bearer services 4 5.2 Teleservices 4 5.3 Control and signalling 4 5.4 Interworking considerations 5 5.5 Service model 5 Section 2: Service Description (stage 1 description) 6 6 Circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service c
9、ategory 6 6.1 Definition 6 6.2 Description 6 6.3 Procedures 6 6.4 Network capability for charging 7 6.5 Interworking considerations 7 6.5.1 Interworking with a public ISDN and certain other digital networks 7 6.5.2 Interworking with networks supporting only a restricted digital information transfer
10、capability 7 6.5.3 Interworking with analogue networks 7 6.6 Static Description: Service Attributes 7 7 Circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for speech information transfer 8 7.1 Definition 8 7.2 Description 8 - ii - 7.3 Procedures 8 7.4 Network capability for charg
11、ing 8 7.5 Interworking considerations 9 7.5.1 Interworking with a public ISDN and certain other digital networks 9 7.5.2 Interworking with analogue networks 9 7.5.3 Encoding law conversion 9 7.6 Static Description: Service Attributes 9 8 Circuit-mode 64 kbit/s 8 kHz structured bearer service categor
12、y usable for 3,1 kHz audio information transfer 10 8.1 Definition 10 8.2 Description 10 8.3 Procedures 10 8.4 Network capability for charging 10 8.5 Interworking considerations 10 8.5.1 Interworking with a public ISDN and certain other digital networks 10 8.5.2 Interworking with analogue networks 10
13、 8.5.3 Encoding law conversion 10 8.6 Static Description: Service Attributes 11 9 Common procedures for services within a PISN 11 9.1 Provision of services 11 9.2 Normal procedures 11 9.2.1 Call establishment at the calling PISN user 11 9.2.2 Call establishment at the called PISN user 13 9.2.3 Termi
14、nating the service (call release) 14 9.3 Exceptional procedures / unsuccessful outcome 14 10 Interworking 15 10.1 General Interworking considerations 15 10.1.1 Incoming calls 15 10.1.2 Outgoing calls 15 10.1.3 PISN transit calls 16 10.2 Interworking with public-ISDN 16 10.2.1 Receipt of service requ
15、est from a public ISDN 16 10.2.2 Sending a service request to a public ISDN 16 10.2.3 Receipt of a service response from public ISDN 17 10.2.4 Sending service response to public ISDN 17 11 Dynamic Description 17 Section 3: Functional capabilities and information flows (stage 2 description) 20 12 Fun
16、ctional model 20 12.1 Functional model description 20 12.2 Description of the functional entities 20 12.2.1 Call Control Agent functional entity 21 - iii - 12.2.2 Call Control functional entity 21 13 Definition of information flows 23 13.1 Conventions used within the description of information flows
17、 23 13.1.1 Convention for the description of mandatory or optional information 23 13.1.2 Convention for the naming of information flows 23 13.2 SETUP 24 13.3 REPORT 28 13.4 CHANNEL_ACKNOWLEDGE 29 13.5 CHANNEL_CONNECT 29 13.6 DISCONNECT 29 13.7 RELEASE 30 13.8 INFORMATION 30 13.9 SETUP_REJECT 30 13.1
18、0 PROCEEDING 31 14 Information flow sequences 31 14.1 Functional entity actions 31 14.1.1 Originating CCA functional entity 31 14.1.2 Originating CC functional entity 32 14.1.3 Transit CC functional entity 33 14.1.4 Destination CC functional entity 34 14.1.5 Destination CCA functional entity 36 14.1
19、.6 Incoming gateway CC functional entity 37 14.1.7 Outgoing gateway CC functional entity 38 14.2 Normal call establishment 40 14.3 Normal call establishment with digit-by-digit sending and automatic answer 41 14.4 Unsuccessful calls with the provision of tones and announcements 42 14.5 Unsuccessful
20、calls without the provision of tones and announcements 43 14.6 Incoming interworking with a non-ISDN 44 14.7 Outgoing interworking with a non-ISDN 45 14.8 Outgoing interworking with digit-by-digit sending 46 14.9 Basic call clearing 47 14.10 Incoming interworking with a public ISDN 48 14.11 Outgoing
21、 interworking with a public ISDN 49 15 SDL diagrams for functional entities 50 15.1 Originating CCA functional entity SDL diagrams 50 15.1.1 Originating CCA states used in SDL diagrams 50 15.1.2 Originating CCA SDL diagrams 51 15.2 Originating CC functional entity SDL diagrams 55 15.2.1 Originating
22、CC states used in SDL diagrams 55 15.2.2 Originating CC SDL diagrams 56 15.3 Transit CC functional entity SDL diagrams 63 15.3.1 Transit CC states used in SDL diagrams 63 15.3.2 Transit CC SDL diagrams 64 15.4 Destination CC functional entity SDL diagrams 69 - iv - 15.4.1 Destination CC states used
23、in SDL diagrams 69 15.4.2 Destination CC SDL diagrams 70 15.5 Destination CCA functional entity SDL diagrams 77 15.5.1 Destination CCA states used in SDL diagrams 77 15.5.2 Destination CCA SDL diagrams 77 16 Allocation of functional entities to physical entities 81 Annex A - Service attributes 83 An
24、nex B - Teleservices 85 Annex C - Bibliography 89 Annex D - Errors in ISO/IEC 11574 1st edition 91 Section 1: General 1 Scope This Standard specifies the service description and control aspects, including functional capabilities and information flows, of standardised circuit-mode bearer services whi
25、ch may be supported by a Private Integrated Services Network (PISN). This Standard includes the following basic services: Circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category; Circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for speech information transf
26、er; Circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information transfer. A PISN shall support at least one of the above three bearer services to conform with this Standard. The scope of this Standard does not include: the negotiation of service at call estab
27、lishment time, the change of service during a call, and unidirectional services. This Standard includes optional procedures for the provision of functions equivalent to the following public ISDN supplementary services: Subaddress and Multiple Subscriber Number. NOTE 1 Supplementary services and othe
28、r bearer services which can be used in conjunction with 64 kbit/s circuit switched bearer services specified in this Standard are dealt with in other standards. NOTE 2 Service specifications are based on information concerning the corresponding public ISDN service available at the time of publicatio
29、n of this Standard. NOTE 3 ITU-T treat Subaddressing and Multiple Subscriber Number as supplementary services. NOTE 4 The use of the Direct Dial In supplementary service of a public ISDN for calls incoming to a PISN from a public ISDN is regarded as part of the basic services in a PISN. NOTE 5 The u
30、se of the Calling Line Identification Presentation and Connected Line Identification Presentation supplementary services of a public ISDN for obtaining the Originating Number or the Connected Number of a call from or to a public ISDN is regarded as part of the basic services in a PISN. NOTE 6 The pr
31、ovision (either explicitly or implicitly) by the user to the network, of its own number (Originating Number or Connected Number), and the provision of an Originating Number or a Connected Number by a PISN to another network is a part of the basic services in a PISN and not a part of the Calling Line
32、 Identification Presentation and Connected Line Identification Presentation supplementary services. Those supplementary services are concerned only with the presentation of the number from the network to the served PISN user. 2 References (normative) The following standards contain provisions which,
33、 through reference in this text, constitute provisions of this Standard. All standards are subject to revision, and parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. - 2 - In the case of r
34、eferences to ECMA Standards that are aligned with ISO/IEC International Standards, the number of the appropriate ISO/IEC International Standard is given in brackets after the ECMA reference. ECMA-133 Private Integrated Services Network (PISN) - Reference Configuration for PISN Exchanges (PINX) (Inte
35、rnational Standard ISO/IEC 11579-1) ECMA-155 Private Integrated Services Networks - Addressing (International Standard ISO/IEC 11571) ITU-T Rec. G.711 Pulse code modulation (PCM) of voice frequencies (1988) ITU-T Rec. I.112 Vocabulary of terms for ISDNs (1993) ITU-T Rec. I.140 Attribute technique fo
36、r the characterization of telecommunications services supported by an ISDN and network capabilities of an ISDN (1993) ITU-T Rec. I.210 Principles of telecommunications services supported by an ISDN and the means to describe them (1993) ITU-T Rec. I.231 Circuit-mode bearer service categories (1988) I
37、TU-T Rec. I.251.1 Number identification supplementary services Direct Dialling-In (1992) ITU-T Rec. I.251.3 Number identification supplementary services Calling Line Identification Presentation (1992) ITU-T Rec. I.251.5 Number identification supplementary services Connected Line Identification Prese
38、ntation (COLP) (1995) ITU-T Rec. I.520 General arrangements for network interworking between ISDNs (1993) ITU-T Rec. X.31 Support of packet-mode terminal equipment by an ISDN (1995) 3 Definitions For the purpose of this Standard, the following definitions apply. For other terms used in this Standard
39、, the definitions in ECMA-133 and ITU-T Rec. I.112 apply. 3.1 call The instance of the use of a service. 3.2 intervening network (IVN) The generic term for any real type of network which is employed for the provision of inter-PINX connections. 3.3 mixed public/private ISDN An overall ISDN which cons
40、ists of any concatenation of public/private networks. NOTE 7 Services are transparent to the users across public and private network components of a mixed public/private network. 3.4 network call control entity The collection of network functions concerned with the control of services, as opposed to
41、 functions concerned with the transfer of user information. 3.5 Private Integrated Services Network (PISN) A private network providing services to a specific set of users. NOTE 8 Contrary to a Public ISDN which provides services to the general public. NOTE 9 The term PISN covers more than a private
42、ISDN. - 3 - 3.6 Private Integrated Services Network Exchange (PINX) A PISN nodal entity which provides automatic connection handling functions used for the provision of telecommunication services. A nodal entity may consist of one or more nodes. 3.7 PISN user An entity which uses telecommunication s
43、ervices offered by a PISN, and which therefore directly or indirectly uses the services of the Network Layer. 3.8 service Telecommunication services That which is offered by a PISN operator and/or owner to its customers in order to satisfy a specific telecommunication requirement. Unless otherwise s
44、tated, the term “service” shall mean “bearer telecommunication service“. 3.9 user An entity which uses telecommunication services offered by a network, and which therefore directly or indirectly uses the services of the Network Layer. 4 Symbols and abbreviations CC Clearing Cause CC FE Call Control
45、generic functional entity CCA Call Control Agent generic functional entity cfm | c confirmation CH Call History CI Channel Identifier CN Connected Number CS Connected Subaddress CT Connection Type DN Destination Number DS Destination Subaddress FE Functional Entity HLC High Layer Compatibility ind |
46、 i indication ISDN Integrated Services Digital Network ISO International Organisation for Standardisation LLC Low Layer Compatibility NC Number complete indication ON Originating Number OS Originating Subaddress OSI Open Systems Interconnection PINX Private Integrated services Network eXchange PISN
47、Private Integrated Services Network PSTN Public Switched Telephone Network Rec. (ITU-T) Recommendation - 4 - req | rq request resp | rs response RT Report Type SDL Specification and Description Language TE Terminal Equipment 5 Provision of services by a PISN Basic services within a PISN consist of b
48、earer services and teleservices. A bearer service is defined only up to a certain layer, in any case no higher than Layer 3. The definition of a teleservice also encompasses the higher layers up to Layer 7 (although some of the layers can be empty or not specified, as with for example, Telephony). T
49、he basic services defined in this Standard correspond to the 64 kbit/s circuit-mode basic services defined in ITU-T Recommendation I.231. 5.1 Bearer services PISN circuit-mode bearer services provide a means of transferring information between users at the physical layer level. Service attributes above Layer 3 are not defined. Consequently, the provision of bearer services involves only low layer functions. A bearer service can support a variety of high layer protocols. A circuit-mode bearer service provides an end to end connection (at the physical layer) for t
