1、 Reference number ISO/IEC 15992:2003(E) ISO/IEC 2003INTERNATIONAL STANDARD ISO/IEC 15992 Second edition 2003-04-01Information technology Telecommunications and information exchange between systems Private Integrated Services Network Inter-exchange signalling protocol Call Priority Interruption and C
2、all Priority Interruption Protection supplementary services Technologies de linformation Tlcommunications et change dinformation entre systmes Rseau priv intgration de services Protocole de signalisation dchange Services supplmentaires dinterruption de priorit dappel et de protection dinterruption d
3、e priorit dappel ISO/IEC 15992:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing
4、the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file
5、 can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secreta
6、riat at the address given below. ISO/IEC 2003 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 and microfilm, without permission in writing from either ISO at the a
7、ddress below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2003 All rights reservedISO/IEC 15992:2003(E) ISO/IEC 2003
8、 All rights reserved iii Contents Foreword v Introduction vi 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Terms and definitions 2 4.1 External definitions 2 4.2 Called user 3 4.3 Calling user 3 4.4 Call interruption 3 4.5 Call Priority Interruption Capability Level (CPICL) 3 4.6 Call Priorit
9、y Interruption Protection Level (CPIPL) 3 4.7 Call protection 3 4.8 Established call 3 4.9 Established call user 3 4.10 Established call users PINX 3 4.11 Forced release 3 4.12 Inter-PINX link 3 4.13 Interrupting PINX 3 4.14 Non-priority call 3 4.15 Priority call 3 4.16 Protected call 3 5 List of ac
10、ronyms 3 6 Signalling protocol for the support of SS-CPI(P) 4 6.1 SS-CPI(P) description 4 6.2 SS-CPI(P) operational requirements 4 6.2.1 Requirements on the Originating PINX 4 6.2.2 Requirements on the Terminating PINX 4 6.2.3 Requirements on a Transit PINX 4 6.2.4 Requirements on the Interrupting P
11、INX 4 6.2.5 Requirements on the Established call users PINX 4 6.3 SS-CPI(P) coding requirements 5 6.3.1 Operations 5 6.3.2 Notifications 6 6.3.3 Information elements 6 6.3.4 Messages 7 6.4 SS-CPI state definitions 7 6.4.1 States at the Originating PINX 7 6.4.2 States at the Transit PINX 7 6.4.3 Stat
12、es at the Interrupting PINX 7 6.5 SS-CPIP state definitions 7 6.5.1 States at the Originating PINX 7 6.5.2 States at the Transit PINX 7 6.5.3 States at the Terminating PINX 7ISO/IEC 15992:2003(E) iv ISO/IEC 2003 All rights reserved 6.6 SS-CPI signalling procedures for activation, deactivation and re
13、gistration 8 6.7 SS-CPIP signalling procedures for activation, deactivation and registration 8 6.8 SS-CPI signalling procedures for invocation and operation 8 6.8.1 Actions at the Originating PINX 8 6.8.2 Actions at a Transit PINX 8 6.8.3 Actions at the Interrupting PINX 9 6.8.4 Actions at the Termi
14、nating PINX 10 6.8.5 Actions at the Established call users PINX 10 6.9 SS-CPIP signalling procedures for invocation and operation 10 6.9.1 Actions at the Originating PINX 10 6.9.2 Actions at a Transit PINX 10 6.9.3 Actions at the Terminating PINX 11 6.10 SS-CPI impact of interworking with public ISD
15、Ns 11 6.11 SS-CPIP impact of interworking with public ISDNs 11 6.12 SS-CPI impact of interworking with non-ISDNs 11 6.13 SS-CPIP impact of interworking with non-ISDNs 12 6.14 Protocol interactions between SS-CPI(P) and other supplementary services and ANFs 12 6.14.1 Interaction with Calling Name Ide
16、ntification Presentation (SS-CNIP) 12 6.14.2 Interaction with Connected Name Identification Presentation (SS-CONP) 12 6.14.3 Interaction with Completion of Call to Busy Subscriber (SS-CCBS) 12 6.14.4 Interaction with Completion of Call on No Reply (SS-CCNR) 12 6.14.5 Interaction with Call Transfer (
17、SS-CT) 12 6.14.6 Interaction with Call Forwarding Unconditional (SS-CFU) 12 6.14.7 Interaction with Call Forwarding Busy (SS-CFB) 13 6.14.8 Interaction with Call Forwarding No Reply (SS-CFNR) 13 6.14.9 Interaction with Call Deflection (SS-CD) 13 6.14.10 Interaction with Path Replacement (ANF-PR) 13
18、6.14.11 Interaction with Call Offer (SS-CO) 13 6.14.12 Interaction with Call Intrusion (SS-CI) 13 6.14.13 Interaction with Do not Disturb (SS-DND) 13 6.14.14 Interaction with Do not Disturb Override (SS-DNDO) 13 6.14.15 Interaction with Advice of Charge (SS-AOC) 13 6.14.16 Interaction with Recall (S
19、S-RE) 13 6.14.17 Interaction with Call Interception (ANF-CINT) 13 6.14.18 Interaction with Transit Counter (ANF-TC) 13 6.14.19 Interaction with Wireless Terminal Location Registration (SS-WTLR) 14 6.14.20 Interaction with Wireless Terminal Incoming Call (ANF-WTMI) 14 6.14.21 Interaction with Wireles
20、s Terminal Outgoing Call (ANF-WTMO) 14 6.14.22 Interaction with Wireless Terminal Authentication of a WTM user (SS-WTAT) 14 6.14.23 Interaction with Wireless Terminal Authentication of a PISN (SS-WTAN) 14 6.14.24 Interaction with Message Waiting Indication (SS-MWI) 14 6.14.25 Interaction with Common
21、 Information (ANF-CMN) 14 6.15 SS-CPI parameter values (timers) 14 6.15.1 Timer T1 14 Annexes A - Protocol Implementation Conformance Statement (PICS) proforma 15 B - Examples of message sequences 23 C - Specification and Description Language (SDL) representation of procedures 28 D - ASN.1 definitio
22、ns according to ITU-T Recs. X.208 / X.209 36ISO/IEC 15992:2003(E) ISO/IEC 2003 All rights reserved v Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies th
23、at 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 intern
24、ational 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. International Standards are drafted in accordance with the rules given i
25、n the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by a
26、t least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 15992 was prepared by ECMA (as EC
27、MA-264) and was adopted, under a special “fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by national bodies of ISO and IEC. This second edition cancels and replaces the first edition (ISO/IEC 15992:1998), which has been techni
28、cally revised. ISO/IEC 15992:2003(E) vi ISO/IEC 2003 All rights reserved Introduction This International Standard 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
29、 and conforms to the framework of International Standards for Open Systems Interconnection as defined by ISO/IEC. This International Standard specifies the signalling protocol for use at the Q reference point in support of the Call Priority Interruption (CPI) and Call Priority Interruption Protectio
30、n (CPIP) supplementary services. The protocol defined in this International Standard forms part of the PSS1 protocol (informally known as QSIG). This International Standard is based upon the practical experience of ECMA member companies and the results of their active and continuous participation in
31、 the work of ISO/IEC JTC 1, ITU-T, ETSI and other international and national standardization bodies. It represents a pragmatic and widely based consensus. ISO/IEC 2003 All rights reserved 1 1S c o p e This International Standard specifies the signalling protocol for the support of the Call Priority
32、Interruption (SS-CPI) and Call Priority Interruption Protection (SS-CPIP) supplementary services at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN). NOTE 1 - This edition of this International
33、Standard does not apply to calls using the circuit-mode multiple rate bearer service. SS-CPI 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 releasing an established call of lower priorit
34、y. SS-CPIP allows for the protection of calls against interruption from priority calls. The Q reference point is defined in ISO/IEC 11579-1. Service specifications are produced in three stages and according to the method specified in ETS 300 387. This International Standard contains the stage 3 spec
35、ification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 15991. The signalling protocol for SS-CPI(P) operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses
36、certain aspects of the generic procedures for the control of supplementary services 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 SS-CPI(P) and other supplementary se
37、rvices and ANFs. NOTE 2 - Additional interactions that have no impact on the signalling protocol at the Q reference point can be found in the relevant stage 1 specifications. This International Standard is applicable to PINXs that can interconnect to form a PISN. 2 Conformance In order to conform to
38、 this International Standard, a PINX shall satisfy the requirements identified in the Protocol Implementation Conformance Statement (PICS) proforma in annex A. Conformance to this International Standard includes conforming to those clauses that specify protocol interactions between SS-CPI(P) and oth
39、er supplementary services and ANFs for which signalling protocols at the Q reference point are supported in accordance with the stage 3 standards concerned. 3 Normative references ISO/IEC 11572:2000, Information technology - Telecommunications and information exchange between systems - Private Integ
40、rated Services Network - Circuit mode bearer services - Inter-exchange signalling procedures and protocol ISO/IEC 11574:2000, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode 64 kbit/s bearer services - Service
41、description, 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) INTERNATIONAL STANDARD ISO/IEC 15992
42、:2003(E)Information technology Telecommunications and information exchange between systems Private Integrated Services Network Inter-exchange signalling protocol Call Priority Interruption and Call Priority Interruption Protection supplementary services The following referenced documents are indispe
43、nsable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 15992:2003(E) 2 ISO/IEC 2003 All rights reserved ISO/IEC 11582:2002, Information techno
44、logy - 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 ISO/IEC 13869:2003, Information technology - Telecommunications and inf
45、ormation exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call Transfer supplementary service ISO/IEC 13873:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-ex
46、change signalling protocol - Call Diversion supplementary services ISO/IEC 13874:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Path Replacement additional network feature ISO/IEC
47、 15054:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call Interception additional network feature ISO/IEC 15431:2003, Information technology - Telecommunications and information
48、exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Wireless terminal call handling additional network features ISO/IEC 15991:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Net
49、work - Specification, functional model and information flows - Call Priority Interruption and Call Priority Interruption Protection supplementary services ETS 300 387:1994, Private Telecommunication Network (PTN); Method for the specification of basic and supplementary services ITU-T Rec. I.112:1993, Vocabulary of terms for ISDNs ITU-T Rec. I.210:1993, Principles of telecommunication services supported by an ISDN and the means to describe them ITU-T Rec. Q.950:2000, Supplementary services protocols, struct
