ISO IEC 13873-2003 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network Inter-exchange sig.pdf

1、 Reference number ISO/IEC 13873:2003(E) ISO/IEC 2003INTERNATIONAL STANDARD ISO/IEC 13873 Second edition 2003-04-01Information technology Telecommunications and information exchange between systems Private Integrated Services Network Inter-exchange signalling protocol Call Diversion supplementary ser

2、vices Technologies de linformation Tlcommunications et change dinformation entre systmes Rseau priv intgration de services Protocole de signalisation dinterchange Services supplmentaires de diversion ISO/IEC 13873:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance wit

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5、y 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 Secretariat at the address given below. ISO/IEC 2003 All rights reserved. Unless otherwise specified, no part of this public

6、ation 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 address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva

7、 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 13873:2003(E) ISO/IEC 2003 All rights reserved iii Contents Foreword v Introduction vi 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Ter

8、ms and definitions 2 4.1 External definitions 2 4.2 Other definitions 3 4.2.1 Activating PINX 3 4.2.2 Busy 3 4.2.3 Connected number 3 4.2.4 Deactivating PINX 3 4.2.5 Diversion 3 4.2.6 Diverted-to number 3 4.2.7 Diverted-to PINX 3 4.2.8 Diverted-to user 3 4.2.9 Diverting cause 3 4.2.10 Diverting numb

9、er 3 4.2.11 Forwarding 3 4.2.12 Forward switching 3 4.2.13 Interrogating PINX 3 4.2.14 Last diverting user 3 4.2.15 Original called number 3 4.2.16 Original called user 3 4.2.17 Partial rerouteing 4 4.2.18 Presentation indicator 4 4.2.19 Rerouteing 4 4.2.20 Rerouteing PINX 4 4.2.21 Served user 4 4.2

10、22 User A 4 4.2.23 User B 4 4.2.24 User B1, user B2, user B3, etc. 4 4.2.25 User C 4 5 Acronyms 4 6 Signalling protocol for the support of SS-DIV 5 6.1 SS-DIV description 5 6.2 SS-DIV operational requirements 5 6.2.1 Provision/withdrawal 5 6.2.2 Requirements on the Originating PINX 6 6.2.3 Requirem

11、ents on the Served User PINX 6 6.2.4 Requirements on the Diverted-to PINX 6 6.2.5 Requirements on the Rerouteing PINX 6 6.2.6 Requirements on a Transit PINX 6 6.2.7 Requirements on the Activating PINX 7 6.2.8 Requirements on the Deactivating PINX 7 6.2.9 Requirements on the Interrogating PINX 7ISO/I

12、EC 13873:2003(E) iv ISO/IEC 2003 All rights reserved 6.3 SS-DIV coding requirements 7 6.3.1 Operations 7 6.3.2 Information elements 14 6.3.3 Messages 14 6.4 SS-DIV state definitions 14 6.4.1 States at the Originating PINX 14 6.4.2 States at the Served User PINX 14 6.4.3 States at the Diverted-to PIN

13、X 15 6.4.4 States at the Rerouteing PINX 15 6.4.5 States at the Activating PINX 15 6.4.6 States at the Deactivating PINX 15 6.4.7 States at the Interrogating PINX 15 6.5 SS-DIV Signalling procedures 15 6.5.1 Actions at the Originating PINX 15 6.5.2 Actions at a Transit PINX 16 6.5.3 Actions at the S

14、erved User PINX 16 6.5.4 Actions at the Rerouteing PINX 19 6.5.5 Actions at the Diverted-to PINX 21 6.5.6 Actions at the Activating PINX 21 6.5.7 Actions at the Deactivating PINX 22 6.5.8 Actions at the Interrogating PINX 22 6.6 SS-DIV Impact of interworking with public ISDNs 22 6.6.1 Impact of inte

15、rworking on incoming calls 23 6.6.2 Impact of interworking on outgoing calls 23 6.7 SS-DIV Impact of interworking with non-ISDNs 23 6.7.1 Impact of interworking on incoming calls 23 6.7.2 Impact of interworking on outgoing calls 24 6.8 Protocol interactions between SS-DIV and other SSs and ANFs 24 6

16、8.1 Protocol interactions of Call Forwarding Unconditional (SS-CFU) 24 6.8.2 Protocol interactions of Call Forwarding Busy (SS-CFB) 25 6.8.3 Protocol interactions of Call Forwarding No Reply (SS-CFNR) 26 6.8.4 Protocol interactions of Call Deflection (SS-CD) 28 6.9 SS-DIV parameter values (timers)

17、28 6.9.1 Timer T1 28 6.9.2 Timer T2 28 6.9.3 Timer T3 28 6.9.4 Timer T4 28 6.9.5 Timer T5 28 Annexes A - Protocol Implementation Conformance Statement (PICS) proforma 29 B - Imported ASN.1 definitions 40 C - Specification and Description Language (SDL) representation of procedures 41 D - Examples of

18、 message sequences 55 E - Bibliography 67 F - ASN.1 definitions according to ITU-T Recs. X.208 / X.209 68ISO/IEC 13873:2003(E) ISO/IEC 2003 All rights reserved v Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the special

19、ized system for worldwide standardization. National bodies that 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 comm

20、ittees collaborate in fields of mutual interest. Other international 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. Internation

21、al Standards are drafted in accordance with the rules given in 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. Pu

22、blication as an International Standard requires approval by at 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

23、such patent rights. ISO/IEC 13873 was prepared by ECMA (as ECMA-174) 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

24、the first edition (ISO/IEC 13873:1995), which has been technically revised. ISO/IEC 13873:2003(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

25、 (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 International Standard specifies the signalling protocol for use at the Q reference point in support of the Call Diversi

26、on supplementary services: Call Forwarding Unconditional (SS-CFU) Call Forwarding Busy (SS-CFB) Call Forwarding No Reply (SS-CFNR) Call Deflection (SS-CD)The protocol defined in this International Standard forms part of the PSS1 protocol (informally known as QSIG).This International Standard is base

27、d upon the practical experience of ECMA member companies and the results of their active and continuous participation in 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 r

28、eserved 1 1S c o p e This International Standard specifies the signalling protocol for the support of Call Diversion supplementary services (SS-DIV) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network

29、PISN). The Call Diversion supplementary services are Call Forwarding Unconditional (SS-CFU), Call Forwarding Busy (SS-CFB), Call Forwarding No Reply (SS-CFNR) and Call Deflection (SS-CD). SS-CFU, SS-CFB, SS-CFNR and SS-CD are supplementary services which permit a served user to have the PISN send a

30、ll or specific incoming calls addressed to the served users PISN number to another number. 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 s

31、pecification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 13872. The signalling protocol for SS-DIV operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572 and uses c

32、ertain 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-DIV and other supplementary servic

33、es and ANFs. This International Standard is applicable to PINXs which can be interconnected to form a PISN. 2 Conformance In order to conform to this International Standard, a PINX shall satisfy the requirements identified in the Protocol Implementation Conformance Statement (PICS) proforma in annex

34、 A. 3 Normative references ISO/IEC 11572:2000, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit mode bearer services - Inter-exchange signalling procedures and protocol ISO/IEC 11574:2000, Information technology - Te

35、lecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode 64 kbit/s bearer services - Service description, functional capabilities and information flows ISO/IEC 11579-1:1994, Information technology - Telecommunications and information exchange bet

36、ween systems - Private integrated services network - Part 1: Reference configuration for PISN Exchanges (PINX) ISO/IEC 11582:2002, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Generic functional protocol for the support

37、of supplementary services - Inter-exchange signalling procedures and protocol ISO/IEC 13868:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Name identification supplementary servic

38、es The following referenced documents are indispensable 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. INTERNATIONAL STANDARD ISO/IEC 13873:2003(E)In

39、formation technology Telecommunications and information exchange between systems Private Integrated Services Network Inter-exchange signalling protocol Call Diversion supplementary services ISO/IEC 13873:2003(E) 2 ISO/IEC 2003 All rights reserved ISO/IEC 13869:2003, Information technology - Telecomm

40、unications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call Transfer supplementary service ISO/IEC 13870:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services

41、Network - Inter-exchange signalling protocol - Call Completion supplementary services ISO/IEC 13872:2003, Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call Diversio

42、n 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

43、 to describe them ITU-T Rec. I.221:1993, Common specific characteristics of services ITU-T Rec. Q.950:2000, Supplementary services protocols, structure and general principles ITU-T Rec. Q.952:1993, Stage 3 description for call offering supplementary services using DSS 1 - Diversion supplementary ser

44、vices ITU-T Rec. Z.100:1999, Specification and description language (SDL)4 Terms and definitions For the purposes of this document, the following terms and definitions apply. 4.1 External definitions This International Standard uses the following terms defined in other documents: - Application Proto

45、col Data Unit (APDU) (ISO/IEC 11582) - Basic Service (ITU-T Rec. I.210) - Call, Basic Call (ISO/IEC 11582) - Coordination Function (ISO/IEC 11582) - End PINX (ISO/IEC 11572) - Incoming Gateway PINX (ISO/IEC 11572) - Interpretation APDU (ISO/IEC 11582) - Network determined user busy (ITU-T Rec. I.221

46、) - Notification (ISO/IEC 11582) - Originating PINX (ISO/IEC 11572) - Outgoing Gateway PINX (ISO/IEC 11572) - Primary PINX (ISO/IEC 13869) - Private Integrated Services Network (PISN) (ISO/IEC 11579-1) - Private Integrated services Network eXchange (PINX) (ISO/IEC 11579-1) - Secondary PINX (ISO/IEC

47、13869) - Signalling (ITU-T Rec. I.112) - Supplementary Service (ITU-T Rec. I.210) - Supplementary Service Control Entity (ISO/IEC 11582) - Terminating PINX (ISO/IEC 11572) - Transferring PINX (ISO/IEC 13869) - Transit PINX (ISO/IEC 11572)ISO/IEC 13873:2003(E) ISO/IEC 2003 All rights reserved 3 - Use

48、r (ISO/IEC 11574) - User determined user busy (ITU-T Rec. I.221) 4.2 Other definitions 4.2.1 Activating PINX The Activating PINX is the PINX serving the activating user. 4.2.2 Busy An ISDN destination is considered to be busy if either a “network determined user busy“ or a “user determined user busy

49、 condition exists. 4.2.3 Connected number The number of the user that answers (user C). 4.2.4 Deactivating PINX The Deactivating PINX is the PINX serving the deactivating user. 4.2.5 Diversion Diversion is the redirection of a call, on request of a called user and prior to answer, to a number different from the number of that called user. 4.2.6 Diverted-to number The diverted-to number is the number to which a call is diverted. 4.2.7 Diverted-to PINX The Diverted-to PINX is the PINX serving the divert