1、 Standard ECMA-263 3rd Edition - December 2001 Standardizing Information and Communication Systems Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Call Priority Interruption and Call Priority Interruption Protection Supplementary Services Phone: +
2、41 22 849.60.00 - Fax: +41 22 849.60.01 - URL: http:/www.ecma.ch - Internet: helpdeskecma.ch . Standard ECMA-263 3rd Edition - December 2001 Standardizing Information and Communication Systems Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Call P
3、riority Interruption and Call Priority Interruption Protection Supplementary Services (CPI(P)SD) Phone: +41 22 849.60.00 - Fax: +41 22 849.60.01 - URL: http:/www.ecma.ch - Internet: helpdeskecma.ch IW Ecma-263.doc 31-01-02 15,55 . Brief History This Standard is one of a series of ECMA Standards defi
4、ning 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 International Standards for Open Systems Interconnection as defined by ISO/IEC. This particular Standard specifies t
5、he Call Priority Interruption (CPI) and Call Priority Interruption Protection (CPIP) supplementary services. This Standard is based upon the practical experience of ECMA member companies and the results of their active and continuous participation in the work of ISO/IEC JTC1, ITU-T, ETSI and other i
6、nternational and national standardization bodies. It represents a pragmatic and widely based consensus. There are currently no equivalent services specified by ITU-T or ETSI for public ISDN. Compared to the 1st Edition of Standard ECMA-263 (published by ECMA in September 1997), the 2nd Edition (publ
7、ished by ECMA in September 1998) incorporated changes to achieve complete alignment with International Standard ISO/IEC 15991:1998(E) published by ISO/IEC in December 1998. Adopted as 3rd Edition of Standard ECMA-263 by the General Assembly of December 2001. - i - Table of contents 1 Scope 1 2 Confo
8、rmance 1 3 References (normative) 1 4 Definitions 2 4.1 External definitions 2 4.2 Additional network feature 2 4.3 Call, Basic call 2 4.4 Call Priority Interruption Capability Level (CPICL) 2 4.5 Call Priority Interruption Protection Level (CPIPL) 3 4.6 Established call 3 4.7 Impending priority int
9、erruption state 3 4.8 Impending priority interruption warning notification 3 4.9 Non-priority call 3 4.10 Priority call 3 4.11 Protected call 3 4.12 Served user 3 4.13 Time to priority interruption 3 4.14 Unprotected call 3 5 List of acronyms 3 6 SS-CPI stage 1 specification 4 6.1 Description 4 6.1.
10、1 General description 4 6.1.2 Qualifications on applicability to telecommunication services 4 6.2 Procedure 4 6.2.1 Provision/withdrawal 4 6.2.2 Normal procedures 4 6.2.3 Exceptional procedures 6 6.3 Interaction with other supplementary services and ANFs 6 6.3.1 Calling Name Identification Presentat
11、ion (SS-CNIP) 6 6.3.2 Connected Name Identification Presentation (SS-CONP) 6 6.3.3 Completion of Call to Busy Subscriber (SS-CCBS) 6 6.3.4 Completion of Call on No Reply (SS-CCNR) 6 6.3.5 Call Transfer (SS-CT) 6 6.3.6 Call Forwarding Unconditional (SS-CFU) 6 6.3.7 Call Forwarding Busy (SS-CFB) 7 6.3
12、.8 Call Forwarding No Reply (SS-CFNR) 7 6.3.9 Call Deflection (SS-CD) 7 6.3.10 Path Replacement (ANF-PR) 7 - ii - 6.3.11 Call Offer (SS-CO) 7 6.3.12 Call Intrusion (SS-CI) 7 6.3.13 Do not Disturb (SS-DND) 7 6.3.14 Do not Disturb Override (SS-DNDO) 7 6.3.15 Advice of Charge (SS-AOC) 7 6.3.16 Recall (
13、SS-RE) 7 6.3.17 Call Interception (ANF-CINT) 7 6.3.18 Transit Counter (ANF-TC) 7 6.3.19 Interaction with Wireless Terminal Location Registration (SS-WTLR) 7 6.3.20 Interaction with Wireless Terminal Incoming Call (ANF-WTMI) 7 6.3.21 Interaction with Wireless Terminal Outgoing Call (ANF-WTMO) 7 6.3.2
14、2 Interaction with Wireless Terminal Authentication of a WTM user (SS-WTAT) 7 6.3.23 Interaction with Wireless Terminal Authentication of a PISN (SS-WTAN) 7 6.3.24 Message Waiting Indication (SS-MWI) 7 6.3.25 Common Information (ANF-CMN) 7 6.3.26 Call Priority Interruption Protection (SS-CPIP) 8 6.4
15、 Interworking considerations 8 6.5 Overall SDL 8 7 SS-CPIP stage 1 specification 12 7.1 Description 12 7.1.1 General description 12 7.1.2 Qualifications on applicability to telecommunication services 12 7.2 Procedure 12 7.2.1 Provision/withdrawal 12 7.2.2 Normal procedures 12 7.2.3 Exceptional proce
16、dures 13 7.3 Interaction with other supplementary services and ANFs 13 7.3.1 Calling Name Identification Presentation (SS-CNIP) 13 7.3.2 Connected Name Identification Presentation (SS-CONP) 13 7.3.3 Completion of Call to Busy Subscriber (SS-CCBS) 13 7.3.4 Completion of Call on No Reply (SS-CCNR) 13
17、7.3.5 Call Transfer (SS-CT) 13 7.3.6 Call Forwarding Unconditional (SS-CFU) 13 7.3.7 Call Forwarding Busy (SS-CFB) 13 7.3.8 Call Forwarding No Reply (SS-CFNR) 13 7.3.9 Call Deflection (SS-CD) 13 7.3.10 Path Replacement (ANF-PR) 13 7.3.11 Call Offer (SS-CO) 13 7.3.12 Call Intrusion (SS-CI) 13 7.3.13
18、Do not Disturb (SS-DND) 13 7.3.14 Do not Disturb Override (SS-DNDO) 13 7.3.15 Advice of Charge (SS-AOC) 14 7.3.16 Recall (SS-RE) 14 7.3.17 Call Interception (ANF-CINT) 14 7.3.18 Transit Counter (ANF-TC) 14 - iii - 7.3.19 Interaction with Wireless Terminal Location Registration (SS-WTLR) 14 7.3.20 In
19、teraction with Wireless Terminal Incoming Call (ANF-WTMI) 14 7.3.21 Interaction with Wireless Terminal Outgoing Call (ANF-WTMO) 14 7.3.22 Interaction with Wireless Terminal Authentication of a WTM user (SS-WTAT) 14 7.3.23 Interaction with Wireless Terminal Authentication of a PISN (SS-WTAN) 14 7.3.2
20、4 Message Waiting Indication (SS-MWI) 14 7.3.25 Common Information (ANF-CMN) 14 7.3.26 Call Priority Interruption (SS-CPI) 14 7.4 Interworking considerations 14 7.5 Overall SDL 14 8 SS-CPI stage 2 specification 16 8.1 Functional model 16 8.1.1 Functional model description 16 8.1.2 Description of Fun
21、ctional Entities 16 8.1.3 Relationship of functional model to basic call functional model 17 8.2 Information flows 17 8.2.1 Definition of information flows 17 8.2.2 Relationship of information flows to basic call information flows 19 8.2.3 Information flow sequences 19 8.3 Functional Entity actions
22、23 8.3.1 Actions of FE1 23 8.3.2 Actions of FE2 23 8.3.3 Actions of FE3 23 8.3.4 Actions of FE4 23 8.3.5 Actions of FE5 24 8.4 Functional entity behaviour 24 8.4.1 Behaviour of FE1 24 8.4.2 Behaviour of FE2 26 8.4.3 Behaviour of FE3 27 8.4.4 Behaviour of FE4 29 8.4.5 Behaviour of FE5 30 8.5 Allocati
23、on of Functional Entities to physical equipment 31 8.6 Interworking considerations 31 9 SS-CPIP stage 2 specification 31 9.1 Functional model 31 9.1.1 Functional model description 31 9.1.2 Description of Functional Entities 32 9.1.3 Relationship of functional model to basic call functional model 32
24、9.2 Information flows 33 9.2.1 Definition of information flows 33 9.2.2 Relationship of information flows to basic call information flows 34 9.2.3 Information flow sequences 34 9.3 Functional Entity actions 37 9.3.1 Actions of FE1 37 - iv - 9.3.2 Actions of FE2 37 9.3.3 Actions of FE3 37 9.3.4 Actio
25、ns of FE4 38 9.3.5 Actions of FE5 38 9.4 Functional entity behaviour 38 9.4.1 Behaviour of FE1 39 9.4.2 Behaviour of FE2 40 9.4.3 Behaviour of FE3 41 9.4.4 Behaviour of FE4 42 9.4.5 Behaviour of FE5 43 9.5 Allocation of Functional Entities to physical equipment 44 9.6 Interworking considerations 44
26、1 Scope This Standard specifies the Supplementary Services Call Priority Interruption (SS-CPI) and Call Priority Interruption Protection (SS-CPIP), which are applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ECMA-142. NOTE
27、1 This edition of this Standard does not apply to the circuit-mode Multiple Rate Bearer Service. SS-CPI is a supplementary service that allows a call request for a priority call to proceed successfully in the case that there is no user information channel available. This is accomplished by force rel
28、easing an established call of lower priority. SS-CPIP is a supplementary service that allows for the protection of calls against interruption from other, priority, calls. SS-CPI and SS-CPIP are described separately because SS-CPI is a service used by a calling user, and SS-CPIP is a service used by
29、either a calling user or a called user. Supplementary service specifications are produced in three stages, according to the method described in ETS 300 387. This Standard contains the stage 1 and stage 2 specifications of SS-CPI. The stage 1 specification (clause 6) specifies the general feature pri
30、nciples and capabilities. The stage 2 specification (clause 7) identifies the Functional Entities involved in the supplementary service and the information flows between them. 2 Conformance In order to conform to this Standard, a stage 3 standard shall specify signalling protocols and equipment beha
31、viour that are capable of being used in a PISN which supports the supplementary service specified in this 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 (stage 1) and clause 7 (stage 2) which are relevant to
32、 the interface or equipment to which the stage 3 standard applies. 3 References (normative) The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. All standards are subject to revision, and parties to agreements based on this Standar
33、d are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. In the case of references to ECMA standards that are aligned with ISO/IEC International Standards, the number of the appropriate ISO/IEC International Standard is given in brackets
34、after the ECMA reference. ECMA-133 Private Integrated Services Network (PISN) - Reference Configuration for PISN Exchanges (PINX) (International Standard ISO/IEC 11579-1) ECMA-142 Private Integrated Services Network (PISN) - Circuit-mode 64 kbit/s Bearer Services - Service Description, Functional Ca
35、pabilities and Information Flows (International Standard ISO/IEC 11574) ECMA-173 Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Call Diversion Supplementary Services (International Standard ISO/IEC 13872) ECMA-175 Private Integrated Services Netw
36、ork (PISN) - Specification, Functional Model and Information Flows - Path Replacement Additional Network Feature (International Standard ISO/IEC 13863) ECMA-177 Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Call Transfer Supplementary Service (I
37、nternational Standard ISO/IEC 13865) - 2 - ECMA-185 Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Call Completion Supplementary Services (International Standard ISO/IEC 13866) ECMA-220 Private Integrated Services Network (PISN) - Specification,
38、Functional Model and Information Flows - Call Interception Additional Network Feature (International Standard ISO/IEC 15053) ETS 300 387 Private Telecommunication Network (PTN); Method for the specification of basic and supplementary services (1994) ITU-T Rec. I.112 Vocabulary of terms for ISDNs (19
39、93) ITU-T Rec. I.210 Principles of telecommunication services supported by an ISDN and the means to describe them (1993) ITU-T Rec. Z.100 Specification and description language (1999) 4 Definitions For the purposes of this Standard, the following definitions apply. 4.1 External definitions This Stan
40、dard uses the following terms defined in other documents: Basic service (ITU-T Rec. I.210) Private Integrated Services Network (PISN) (ECMA-133) Private Integrated services Network eXchange (PINX) (ECMA-133) Service (ITU-T Rec. I.112) Signalling (ITU-T Rec. I.112) Supplementary Service (ITU-T Rec. I
41、.210) User (ECMA-142) This Standard refers to the following basic call Functional Entities (FE) defined in ECMA-142: Call Control (CC) Call Control Agent (CCA) This Standard refers to the following basic call inter-FE relationships defined in ECMA-142: r1 r2 r3 This Standard refers to the following
42、basic call information flows defined in ECMA-142: DISCONNECT request/indication RELEASE request/indication SETUP request/indication 4.2 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 instan
43、ce of the use of a basic service. 4.4 Call Priority Interruption Capability Level (CPICL) A parameter indicating the priority of a call. - 3 - 4.5 Call Priority Interruption Protection Level (CPIPL) A parameter indicating a level of protection of a call against interruption from other calls. 4.6 Est
44、ablished call The active call that is selected for interruption. 4.7 Impending priority interruption state The condition of an established call and a priority call after provision of an Impending priority interruption warning notification and before the release of the established call. 4.8 Impending
45、 priority interruption warning notification A notification provided before the release of the established call. 4.9 Non-priority call A call that has not been assigned a CPICL value. 4.10 Priority call A call that has a CPICL value greater than zero. NOTE 2 A priority call may also be a protected ca
46、ll. 4.11 Protected call A call that has a CPIPL value greater than zero. NOTE 3 A protected call may also be a priority call. 4.12 Served user The user who requests SS-CPI and/or SS-CPIP. 4.13 Time to priority interruption The duration of the impending priority interruption state. 4.14 Unprotected c
47、all A call which has not been assigned a CPIPL value or has a CPIPL value equal to zero. 5 List of acronyms ANF Additional Network Feature AOC Advice Of Charge CC Call Control (Functional Entity) CCA Call Control Agent (Functional Entity) CCBS Call Completion to Busy Subscriber CCNR Call Completion
48、on No Reply CD Call Deflection CFB Call Forwarding Busy CFNR Call Forwarding No Reply CFU Call Forwarding Unconditional CI Call Intrusion CICL Call Intrusion Capability Level CINT Call INTerception CLIP Calling Line Identification Presentation CLIR Calling/Connected Line Identification Restriction C
49、MN CoMmoN Information CNIP Calling Name Identification Presentation CNIR Calling/Connected Name Identification Restriction CO Call Offer COLP Connected Line Identification Presentation - 4 - CONP Connected Name Identification Presentation CPI Call Priority Interruption CPICL Call Priority Interruption Capability Level CPIP Call Priority Interruption Protection CPIPL Call Priority Interruption Protection Level CT Call Transfer DND Do Not Disturb DNDO Do Not Disturb Override FE Functional Entity ISDN Integrated Services Digital Network MWI Message Waiting Indi
