1、 ETSI TR 183 032 V1.1.1 (2006-05)Technical Report Telecommunications and Internet converged Services andProtocols for Advanced Networking (TISPAN);Feasibility study into mechanisms for the support ofencapsulated ISUP information in IMSETSI ETSI TR 183 032 V1.1.1 (2006-05) 2 Reference DTR/TISPAN-0305
2、9-NGN-R1 Keywords IMS, ISUP ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies o
3、f the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF)
4、. In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of
5、 this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as
6、authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand
7、the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 183 032 V1.1.1 (2006-05) 3 Contents Intellectual Property Rights5 Foreword
8、.5 1 Scope 6 2 References 6 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .8 4 Introduction and potential use cases.9 4.1 Introduction 9 4.2 Use of IMS as a transit network .9 4.3 Emulation services .9 4.4 Simulation services.11 4.5 Recursion12 5 Requirements12 6 Protocol desi
9、gn issues 14 6.1 Introduction 14 6.2 ISUP confidentiality.14 6.3 Relationship between ISUP information and SIP call control16 6.3.1 Introduction.16 6.3.2 Transport of ISUP information .17 6.3.3 Determining support for NSS message bodies .17 6.3.4 Categories of ISUP information17 6.3.5 Handling ISUP
10、information within SIP session management messages 17 6.3.5.1 Determining ISUP compatibility for the INVITE request.17 6.3.5.2 Retry on failure of ISUP compatibility for the INVITE request .18 6.3.5.3 Supporting a consistent set of ISUP procedures18 6.3.5.4 ISUP in other SIP session management proce
11、dures18 6.3.6 Handling transparent ISUP messages .18 6.3.6.1 General18 6.3.6.2 Sending transparent ISUP messages .19 6.3.6.3 Receiving transparent ISUP messages 19 6.3.6.4 Handling responses to INFO request 19 6.3.6.4.1 General 19 6.3.6.4.2 Special cases of handling responses to INFO request .20 6.4
12、 Applicability of ISUP timers to SIP with encapsulated ISUP information 20 6.5 Usage of INFO request in SIP 21 6.6 Method of ISUP information encapsulation.22 6.7 Interoperation between ISUP interworking profiles.22 6.8 ISUP precedence over SIP headers in ITU-T Recommendation Q.1912.5 23 6.9 Service
13、 analysis 24 6.9.1 General24 6.9.2 Direct Dialling In (DDI) .24 6.9.3 Calling LIne Presentation/Restriction (CLIP/CLIR) 24 6.9.4 COnnected Line Presentation/Restriction (COLP/COLR) .25 6.9.5 Malicious Call IDentification (MCID) .25 6.9.6 SUBaddressing (SUB) 26 6.9.7 Call Diversion Services - CFB/CFN
14、R/CFU/CD.26 6.9.8 Explicit Call Transfer (ECT) 27 6.9.9 Call Waiting (CW)27 6.9.10 Call HOLD (HOLD).27 6.9.11 Terminal Portability (TP)28 6.9.12 Call Completion to Busy Subscriber (CCBS).28 6.9.13 Call Completion on No Response (CCNR) 28 ETSI ETSI TR 183 032 V1.1.1 (2006-05) 4 6.9.14 CONFerence Call
15、ing (CONF) 29 6.9.15 Three-ParTY (3PTY)29 6.9.16 Closed User Group (CUG) .29 6.9.17 MultiLevel Precedence and Preemption (MLPP) .30 6.9.18 Global Virtual Network Service (GVNS).30 6.9.19 REVerse Charging (REV) 30 6.9.20 User-to-User Signalling (UUS).31 6.9.21 Anonymous Call Rejection (ACR) .31 6.10
16、Interfaces to the AGCF.32 6.11 Summary of protocol decisions 32 7 Proposed amendments to TISPAN NGN specifications 33 7.1 Introduction and key.33 7.2 Proposed amendments to TS 183 043 - application server procedures 34 7.3 Proposed amendments to TS 183 043 - MGCF procedures .37 7.4 Proposed amendmen
17、ts to TS 183 043 - IBCF procedures42 7.5 Proposed amendments to TS 183 043 - list of supplementary services43 Annex A: Messages and parameters used by the supplementary services44 History 52 ETSI ETSI TR 183 032 V1.1.1 (2006-05) 5 Intellectual Property Rights IPRs essential or potentially essential
18、to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
19、 ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be gi
20、ven as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword The present document (TR) has been produced by ETSI Technical Committee Telecommunications and Internet con
21、verged Services and Protocols for Advanced Networking (TISPAN). ETSI ETSI TR 183 032 V1.1.1 (2006-05) 6 1 Scope The present document addresses issues for the support of ISUP information between IMS entities when used in an NGN, i.e. MGCF to MGCF, MGCF to AS, AS to MGCF, AGCF to AS, and possibly AS t
22、o AS. The present document provides a home for text for incorporation into other deliverables once the documentation structure has been decided. A number of potential use cases exist for such a mechanism, e.g. PSTN to PSTN bridging using IMS, support of service information to AS from MGCF in simulat
23、ion services, support of the IMS based PSTN/ISDN emulation subsystem, but it is not in the scope of the present document to provide information relating to use of this mechanism to support such use cases. Such use of this mechanism will be dealt with by other work items. 2 References For the purpose
24、s of this Technical Report (TR), the following references apply: 1 ETSI TS 181 002: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Multimedia Telephony with PSTN/ISDN simulation services“. 2 ETSI TS 181 005: “Telecommunications and Internet conver
25、ged Services and Protocols for Advanced Networking (TISPAN); Services and Capabilities Requirements“. 3 ETSI TS 183 005: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN simulation services: Conference (CONF); Protocol specification“. 4 ET
26、SI TS 183 016 : “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN simulation services; Malicious Communication Identification (MCID); Protocol specification“. 5 ETSI TS 183 011: “Telecommunications and Internet converged Services and Protoc
27、ols for Advanced Networking (TISPAN); PSTN/ISDN simulation services: Anonymous Communication Rejection (ACR) and Communication Barring (CB); Protocol specification“. 6 ETSI TS 183 042: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN IMS Supplem
28、entary Services; Call Completion on Busy Subscriber (CCBS), Call Completion No Reply (CCNR)“. 7 ETSI ES 201 296: “Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP); Signalling aspects of charging“. 8 ETSI EN 383 001: “Telecommunications and Internet conv
29、erged Services and Protocols for Advanced Networking (TISPAN); Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control (BICC) Protocol or ISDN User Part (ISUP) ITU-T Recommendation Q.1912.5, modified“. 9 ITU-T Recommendation Q.850: “Usage of cause and location in t
30、he Digital Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN User Part“. 10 ITU-T Recommendation Q.1912.5: “Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control protocol or ISDN User Part“. 11 ITU-T Recommendation Q.1980.1: “The Narrowband
31、Signalling Syntax (NSS) - Syntax definition“. 12 ETSI TS 182 012: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation Subsystem; Functional architecture“. ETSI ETSI TR 183 032 V1.1.1 (2006-05) 7 13 ETSI TS 123 228: “Digita
32、l cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.228 )“. 14 ETSI TS 124 228: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Signalling flo
33、ws for the IP multimedia call control based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.228 Release 5)“. 15 ETSI TS 124 229: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Internet Protoc
34、ol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.229 Release 7)“. 16 ETSI TS 129 163: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Interworking
35、 between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks (3GPP TS 29.163 Release 7)“. 17 IETF RFC 2976: “The SIP INFO Method“. 18 IETF RFC 3204: “MIME media types for ISUP and QSIG Objects“. 19 ETSI ES 283 027: “Telecommunications and Internet converged Services
36、 and Protocols for Advanced Networking (TISPAN); Interworking SIP-ISUP for TISPAN-IMS“. 20 ETSI ES 283 003: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Endorsement of “IP Multimedia Call Control Protocol based on Session Initiation Protocol (SI
37、P) and Session Description Protocol (SDP) Stage 3 (Release 6)“ for NGN Release 1“. 21 ITU-T Recommendations Q.764: “Signalling System No. 7 - ISDN User Part“. 22 IETF RFC 3261: “SIP: Session Initiation Protocol“. 23 ETSI TS 183 043: “Telecommunications and Internet converged Services and Protocols f
38、or Advanced Networking (TISPAN);. IMS-based PSTN/ISDN Emulation Stage 3 specification“. 24 ETSI TS 133 210: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); 3G security; Network Domain Security (NDS); IP network layer security (3GPP TS 33.210
39、 Release 7)“. 25 IETF RFC 3966: “The tel URI for Telephone Numbers“. 26 ETSI TS 183 004: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN/ISDN simulation services: Communication DIVersion (CDIV); Protocol specification“. 3 Definitions and abbre
40、viations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: SIP endpoint: any SIP UA within the IM CN subsystem NOTE: For the purposes of handling included ISUP information, such a SIP endpoint will be a AS or an MGCF or an IBCF, and the entity that
41、contains the SIP endpoint is inclusive of ISUP functionality which will allow the processing of the encapsulated ISUP information. ETSI ETSI TR 183 032 V1.1.1 (2006-05) 8 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: 3PTY Three-ParTY ACM Address Compl
42、ete Message ACR Anonymous Call Rejection AGCF Access Gateway Control Function AS Application Server ASF Application Server Function B2BUA Back to Back User Agent BGCF Border Gateway Control Function BICC Bearer Independent Call Control CCBS Call Completion to Busy Subscriber CCNR Call Completion on
43、No Response CD Call Deflection CFB Call Forwarding on Busy CFNR Call Forwarding on No Reply CFU Call Forwarding Unconditional CLIP Calling Line Identification Presentation CLIR Calling Line Identification Restriction COLP COnnected Line identification Presentation COLR COnnected Line identification
44、Restriction CONF CONFerence Calling, Add-On CPG Call Progress Message CS Circuit Switched CSCF Call Session Control Function CUG Closed User Group CW Call Waiting DDI Direct Dialling In ECT Explicit Call Transfer GVNS Global Virtual Network Service HOLD Call HOLD IBCF Interconnection Border Control
45、Function IMS IP Multimedia core network Subsystem IMS-ALG IMS Application Layer Gateway IP Internet Protocol ISC IP multimedia Service Control ISDN Integrated Services Digital Network ISUP ISDN Signalling User Part IWF InterWorking Function LOP LOop Prevention message MCID Malicious Call IDentificat
46、ion MG Media Gateway MGCF Media Gateway Control Function MGF Media Gateway Function MIME Multipurpose Internet Mail Extensions MLPP MultiLevel Precedence and Preemption MRFC Media Resource Function Controller NGN Next Generation Network NNI Network Network Interface NSS Narrowband Signalling Syntax
47、P-CSCF Proxy-CSCF PES PSTN/ISDN Emulation Subsystem PSTN Public Switched Telecommunications Network REV REVerse Charging S-CSCF Serving-CSCF SDP Session Description Protocol SIP Session Initiation Protocol SLF Server Local Function SUB SUBaddressing ETSI ETSI TR 183 032 V1.1.1 (2006-05) 9 TCAP Trans
48、action CAPabilities TLS Transport Layer Security TP Terminal PortabilityUA User Agent UE User Equipment UNI User Network Interface UPSF User Proxy Server Function UUS User-to-User Signalling VGW Virtual GateWay 4 Introduction and potential use cases 4.1 Introduction It is the responsibility of the T
49、ISPAN stage 2 documents to define the functional architecture for the use of various capabilities defined at stage 1. This clause identifies the various functional architectures defined at stage 2 that are either required to make use of encapsulated ISUP, or could make use of the advantages of encapsulated ISUP. By bringing these use cases together in the present document, it is also hoped that a common solution can be devised that meets all the use cases. As the fundamental basis for the service layer in NGN is the IMS defin
