ITU-T Q 1601-1999 Signalling System No 7 - Interaction between N-ISDN and INAP CS-2 (Study Group 11)《No 7号信令系统 在N-ISDN和INAP CS-2交互作用》.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU SERIES Q: SWITCHING AND SIGNALLING I n tel I ig en t Network Q.1601 (1 2/1999) Signalling System No. 7 - Interaction between N-ISDN and INAP CS-2 ITU-T Recommendation Q.1601 (Formerly CCITT Recommendation) CO

2、PYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING S

3、YSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORIUNG OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE

4、NETWORK INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.lLQ.3 Q.4-Q.59 Q.60.99 Q. 100.119 Q. 120.249 Q.250.309 Q.310.399 Q.400.499 Q.500.599 Q.600.699 Q.700.849 Q.850.999 Q. 1000. 1099 INTERWORIUNG WITH SATELLITE MOBILE SYSTEMS Q. 1 100.1199 SIGNALLI

5、NG REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700.1799 BROADBAND ISDN Q.2000.2999 For further details, please re$er to the list of ITD-T Recommendations. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Recommendation 4.1601 Signal

6、ling System No. 7 - Interaction between N-ISDN and INAP CS-2 Summary This ITU-T Recommendation specifies procedures in order to provide interaction between N-ISDN and INAPCS-2/CS-3, i.e. to support IN services in an ISDN environment. This ITU-T Recommendation only considers the case where the SSP is

7、 located at a transit level. As a consequence, this could lead to limitations for ISDN supplementary services. The interaction between other signalling systems and INAP can be found by consulting the relevant intenvorking Recommendation to the N-ISDN in combination with the N-ISDN/INAP interaction R

8、ecommendation. Source ITU-T Recommendation Q. 160 1 was prepared by ITU-T Study Group 1 1 (1 997-2000) and approved under the WTSC Resolution 1 procedure on 3 December 1999. Keywords INAP, ISUP, ss7, SSP. ITU-T 4.1601 (12/1999) 1 COPYRIGHT International Telecommunications Union/ITU Telecommunication

9、sLicensed by Information Handling ServicesFOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying tech

10、nical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T study groups whic

11、h, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSC Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and

12、IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendat

13、ion may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval

14、of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB paten

15、t database. o ITU 2001 All rights reserved. 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 fi-om the ITU. 11 ITU-T 4.1601 (12/1999) COPYRIGHT International Telecommun

16、ications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCONTENTS 1 1 Scope . 2 References . 1 ITU-T terms and definitions . 2 3 2 4 Abbreviations Conventions 3 5 4 6 6.1 6.2 Description Establishment of Bearer related connections Establishment of bearer unrelated connections .

17、4 10 10 7 Operational requirements 10 10 10 10 10 10 10 10 11 11 11 11 11 11 8 8.1 8.2 Coding requirements . Messages . Parameters . 8.2.1 Call diversion treatment indicators parameter . 8.2.2 8.2.3 Call offering treatment indicators parameter . 8.2.4 Charged party identification parameter . 8.2.5 C

18、onference treatment indicators parameter . Called IN number parameter. . 8.2.6 Correlation id parameter 8.2.7 Display information parameter UD action indicators parameter 8.2.8 SCF id parameter . 8.2.9 8.2.1 O UD capability indicators parameter. . 8.2.11 Original called IN number parameter 11 9 10 1

19、0.1 State definitions 11 11 11 17 18 20 23 28 29 29 31 Signalling procedures Bearer related connections 10.1.1 IN basic call . 10.1.2 1 O. 1.3 Detection Point processing 10.1.4 Setup of an IN call to destination B . 1 O. 1.5 User interactive dialogue (in-band) . 1 O. 1.6 Call gapping. 1 O. 1.7 Servi

20、ce filtering . 10.1.8 SCP initiated call . 10.1.9 GVNS IN call with SCP request to collect further digits ITU-T 4.1601 (12/1999) . 111 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services10.2 11 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 13

21、 14 10.1.10 Actions to be performed in local exchanges 1 O . 1.1 1 Actions in an intermediate exchange . 1 O . 1.12 Actions in international gateway exchanges Bearer unrelated connections Interaction with other networks Interaction between IN basic call and ISDN supplementary services . Call diversi

22、on 12.1.1 Actions in the service switching point . 12.1.2 Actions in the destination local exchange . Calling line identification presentatiodrestriction 12.2.1 Actions in the service switching point . Completion of calls service . 12.3.1 Completion of calls to busy subscriber 12.3.2 Conference 12.4

23、.1 Actions in the originating or destination local exchange . Completion of calls on no reply . Connected line identification presentatiodrestriction Explicit call transfer 12.6.1 Actions in the service switching point . Malicious call identification . 12.7.1 Actions in the service switching point .

24、 12.7.2 Actions in the destination local exchange . Three party 12.8.1 Actions in the originating or destination local exchange . Interactions between IN services Parameter values (timers) . 12.5.1 Actions in the service switching point . Annex A . Signalling flows . Appendix I . Coding of the compa

25、tibility information for the parameters . Appendix II . Contents of the INAP serviceInteractionIndicatorsTwo . Appendix III . Limitations for ISUP basic call procedures and supplementary services for different types of IN calls Page 32 33 34 34 34 34 36 36 36 37 37 37 37 37 37 37 37 37 38 38 38 38 3

26、8 39 39 39 39 40 46 47 49 iv ITU-T 4.1601 (12/1999) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Recommendation 4.1601 Signalling System No. 7 - Interaction between N-ISDN and INAP CS-2 1 Scope This ITU-T Recommendation specifi

27、es the interaction between the N-ISDN and INAP CS-2/CS-3. For the purpose of this ITU-T Recommendation the interface INAP CS-2 between SSP and SCP is regarded as being an intranetwork interface. The following topics being part of INAP CS-3 are considered in addition. Connected line identification re

28、striction for the called IN number. o “Carrier“ parameter on INAP in the InitialDP and InitiateCallAttempt operation. Setting of the “charge indicator“. Mapping of the calling geodetic location parameter. o o o The interaction between other signalling systems and INAP can be found by consulting the

29、relevant intenvorking Recommendation to the N-ISDN in combination with the N-ISDN/INAP interaction Recommendation. This ITU-T Recommendation specifies procedures in order to provide interaction between N-ISDN and INAP, i.e. to support IN services in an ISDN environment. In addition new protocol elem

30、ents for the ISUP are defined in this ITU-T Recommendation in order to satisfy IN specific requirements. Based on the protocol inherent compatibility mechanism a stepwise upgrade of the ISUP functionality is possible. However, the new function is only available for an IN call, if supported in any of

31、 the affected exchanges. This ITU-T Recommendation only considers the case where the SSP is located at a transit level. As a consequence this could lead to limitations for ISDN supplementary services. This ITU-T Recommendation does not specify enhancements to the DSS1 protocol, which may be needed d

32、ue to additional ISUP functions or IN requirements, respectively. The main subjects of this interaction specification are the following: o description of specific call control functions for IN calls; impacts on the ISUP basic call and the ISDN supplementary services for IN calls; enhancement of the

33、ISUP protocol due to IN specific requirements. o o 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommen

34、dations and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularl

35、y published. 11 CCITT Recommendation I. 130 (1988), Method for the characterization of 2 31 telecommunication services supported by an ISDN and network capabilities of an ISDN. ITU-T Recommendation I. 1 12 (1993), Vocabulary of terns for ISDNs. ITU-T Recommendation 1.2 1 O (1 993), Principles of tel

36、ecommunication services supported by an ISDN and the means to describe them. ITU-T 4.1601 (12/1999) 1 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Recommendation Q. 1224 (1 997), Distributed functional plane for intelligent net

37、work Capability Set 2. ITU-T Recommendation Q. 1228 (1 997), Inteflace Recommendation for intelligent network Capability Set 2. ITU-T Recommendation 4.1290 (1993), Glossary of terms used in the definition of intelligent networks. ITU-T Recommendation 4.73 1 (1993), Stage 3 description for number ide

38、ntzjkation supplementary services using Signalling System No. 7. ITU-T Recommendation 4.732.2-5 (1999), Stage 3 description for call oflering supplementary services using Signalling System No. 7: Call diversion services. ITU-T Recommendation 4.763 (1999), Signalling System No. 7 - ISDN User Part for

39、mats and codes. ITU-T Recommendation 4.764 (1999), Signalling System No. 7 - ISDN User Part signalling procedures. ITU-T Recommendation 4.93 1 (1998), ISDN user-network interface layer 3 speczjkation for basic call control. ITU-T terms and definitions This Recommendation defines the following terms:

40、 - - - - - - - Integrated Services Digital Network (ISDN): see ITU-T Recommendation I. 1 12 2. Service; telecommunication service: see ITU-T Recommendation I. 1 12 2. Supplementary service: see ITU-T Recommendation 1.2 1 O 31. Call Control Function (CCF): see 3.3/4.1224 4. Service Control Function (

41、SCF): see 3.3/4.1224 4. Service Switching Function (SSF): see 3.3/4.1224 4. Specialized Resource Function (SRF): see 3.3/4.1224 4. 4 Abbreviations This ITU-T Recommendation uses the following abbreviations: ACM Address Complete Message (ISUP) ANM Answer Message (ISUP) ATP Access Transport parameter

42、(ISUP) CCSS Call completion Service Setup CON Connect Message (ISUP) CPG Call Progress Message (ISUP) DLE Destination Local Exchange DP Detection Point DSS 1 EDP-N EDP-R Digital Subscriber Signalling System No. 1 Event Detection Point - Notification Event Detection Point - Request 2 ITU-T 4.1601 (12

43、/1999) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesFAR FOT FRJ GVNS IAM IDR IE IN INAP IP IRS ISDN ISUP OLE PRI REL RES RLC SCP SGM ss SSP sus TMR TNS Facility Request Message (ISUP) Forward Transfer Message (ISUP) Facility Reject (

44、ISUP) Global virtual network service Initial Address Message (ISUP) Identification Request Message (ISUP) Information element Intelligent Network Intelligent Network Application Protocol Intelligent Peripheral Identification Response Message (ISUP) Integrated Services Digital Network ISDN User Part

45、Originating Local Exchange Pre-release Information message (ISUP) Release Message (ISUP) Resume Message (ISUP) Release Complete Message (ISUP) Service Control Point Segmentation Message (ISUP) Signalling System Service Switching Point Suspend Message (ISUP) Transmission Medium Requirement Transit Ne

46、twork Selection (ISUP) 5 Conventions The name of each element of the following class of terms is captilized and capital letter within that term can possibly occur: o operations. Example: Continue W ithArgument operation. The name of each element of the following class of terms is not capitalized and

47、 capital letter within that term can possibly occur: Example: CalledPartyNumber. o parameters within operations. ITU-T 4.1601 (12/1999) 3 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services6 Description 6.1 ITU-T Recommendation Q. 1224 4 p

48、rovides a distributed functional plane architecture for IN Capability Set 2 (CS-2). Interactions between the following functional entities (FES) are relevant for this ITU-T Recommendation: Establishment of Bearer related connections o Call Control Function (CCF). o Service Switching Function (SSF).

49、o Service Control Function (SCF). o Specialized Resource Function (SRF). The functional entities can be implemented in one or more network elements, called physical entities. The service control point (SCP) is the physical entity in the intelligent network, that implements the SCF. The CCF and SSF are realized in the service switching point (SSP) and the SRF is realized in the intelligent peripheral (IP). The SSF contains the capabilities beyond those that are needed for basic call control. Consequently, this ITU-T Recommendation concentrates on the actions that are perf