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ETSI TS 182 012-2008 Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) IMS-based PSTN ISDN Emulation Sub-system (PES) Functional arc_1.pdf

1、 ETSI TS 182 012 V2.1.4 (2008-03)Technical Specification Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN);IMS-based PSTN/ISDN Emulation Sub-system (PES);Functional architectureETSI ETSI TS 182 012 V2.1.4 (2008-03) 2 Reference RTS/TISPAN-02044-NGN-R2 K

2、eywords architecture, IMS, ISDN, PSTN 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 Individua

3、l copies of 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 Fo

4、rmat (PDF). 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

5、 status of 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

6、except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI reg

7、istered 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 TS 182 012 V2.1.4 (2008-03) 3 Contents Intellectual Property Rights5 Foreword.5 1 Scope 6 2 References 6 2.1 Normative references .6 2.2

8、 Informative references7 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .8 4 Overview 9 4.1 PSTN/ISDN Emulation subsystem environment9 4.2 Signalling configurations .9 4.3 Constraints on services.10 4.4 Overlap signalling 10 5 Functional architecture.11 5.1 Overview 11 5.2 Over

9、view of Functional entities of the PES .11 5.2.1 Access Gateway Control Function (AGCF) .11 5.2.2 Multimedia Resource Function Controller (MRFC).12 5.2.3 Media Gateway Control Function (MGCF)12 5.2.4 Proxy Call Session Control Function (P-CSCF).12 5.2.5 Service Call Session Control Function (S-CSCF)

10、 13 5.2.6 Interrogating Call Session Control Function (I-CSCF).13 5.2.7 Breakout Gateway Control Function (BGCF) 13 5.3 Internal Reference Points .13 5.3.1 Reference Point MGCF - CSCF (Mg Reference Point)13 5.3.2 Reference Point CSCF - MRFC (Mr Reference Point).13 5.3.3 Reference Point CSCF - CSCF a

11、nd AGCF - CSCF (Mw Reference Point) .13 5.3.4 Reference Point CSCF - BGCF (Mi reference point) .13 5.3.5 Reference Point BGCF - MGCF (Mj reference point)14 5.3.6 Reference Point BGCF - BGCF (Mk reference point)14 5.3.7 Reference Point AGCF, CSCF or BGCF - IBCF (Mx Reference Point) 14 6 Service Archi

12、tecture.14 6.1 Overview 14 6.2 Reference points.16 6.2.1 Reference Point S-CSCF - ASF (ISC Reference Point)16 6.2.2 Reference Point UPSF - SIP AS or OSA SCS (Sh Reference Point)16 6.2.3 Reference Point UPSF - IM SSF (Si Reference Point) .16 6.2.4 Reference Point ASF- SLF (Dh Reference Point) 16 6.2.

13、5 Reference Point ASF - UE and ASF-AGCF (Ut Reference Point).16 7 External interfaces17 7.1 Interfaces with entities in the transfer plane.17 7.1.1 Reference Point MGCF - T-MGF (Mn Reference Point) .17 7.1.2 Reference Point MGCF - SGF (Ie Reference Point).17 7.1.3 Reference Point AS - SGF (P3 Refere

14、nce Point)17 7.1.4 Reference Point MRFC - MRFP (Mp Reference Point) .17 7.2 Interface with the UE .17 7.3 Interfaces with the user profile .17 7.3.1 Interface with the SLF (Dx Reference Point) .18 7.3.2 Interface with the UPSF (Cx Reference Point).18 7.4 Interfaces with Charging Functions18 ETSI ETS

15、I TS 182 012 V2.1.4 (2008-03) 4 8 Interconnection with other networks18 8.1 Interfaces with the PSTN/ISDN .18 8.2 Interfaces with other external IP-based Subsystems 18 9 Interfaces with the Network Attachment Subsystem (NASS)20 10 Interface with the Resource and Admission Control Subsystem (RACS) .2

16、0 11 Mode of operation 21 11.1 General Principles 21 11.2 Service Provisioning.22 11.2.1 Provisioning in the UPSF .22 11.2.2 Provisioning in the AGCF 22 11.3 Registration 23 11.4 Service code commands .24 12 AGCF behaviour 24 12.1 AGCF components.24 12.2 Media Gateway Controller .25 12.3 Feature Man

17、ager.26 12.4 IMS Agent27 13 Physical scenarios 27 Annex A (informative): Areas of discussion and potential open items28 History 29 ETSI ETSI TS 182 012 V2.1.4 (2008-03) 5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The

18、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 ETSI in respect of ETSI standards“, which is available from

19、 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 given as to the existence of other IPRs not referenced in ETSI

20、 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 This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Advanced Networkin

21、g (TISPAN). ETSI ETSI TS 182 012 V2.1.4 (2008-03) 6 1 Scope The present document describes an IMS-based functional architecture for the PSTN/ISDN Emulation Subsystem (PES) of the ETSI TISPAN NGN overall architecture. The IMS-based PSTN/ISDN Emulation Subsystem described herein supports the emulation

22、 of PSTN services for analog terminals and ISDN services for ISDN terminals and PBXs. These may be connected directly to residential gateways or access gateways, or via V5 access networks. The present document provides a framework for an IMS-based functional architecture and is considered to be a pr

23、eliminary version. In addition, in order to fulfil the requirements of different operators and national regulatory requirements, this architecture will need to be enhanced. See annex A for a list of potential open areas. 2 References References are either specific (identified by date of publication

24、and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future chan

25、ges of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficie

26、nt to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include t

27、he method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative

28、references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI ES 282 001: “Teleco

29、mmunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture Release 1“. 2 ETSI ES 282 007: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS) Functional archite

30、cture“. 3 ETSI TS 182 006: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Stage 2 description“. 4 ETSI ES 283 003: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); I

31、P Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 3GPP TS 24.229 Release 7, modified“. ETSI ETSI TS 182 012 V2.1.4 (2008-03) 7 5 ETSI TS 183 043: “Telecommunications and Internet converged Services and Protocols for Advanced

32、Networking (TISPAN); IMS-based PSTN/ISDN Emulation; Stage 3 specification“. 6 ETSI TS 183 021: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Release 1; Endorsement of 3GPP TS 29.162 Interworking between IM CN Sub-system and IP networks“. 7 ET

33、SI ES 282 010: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Charging management Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260 Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7 and 3GPP TS 32.299 Release 7, modified“. 8 ETSI

34、 ES 201 915-1: “Open Service Access (OSA); Application Programming Interface (API); Part 1: Overview (Parlay 3)“. 9 IETF RFC 3136: “The SPIRITS architecture“. 10 ETSI ETS 300 738: “Human Factors (HF); Minimum Man-Machine Interface (MMI) to public network based supplementary services“. 11 ITU-T Recom

35、mendation H.248: “Gateway control protocol“. 12 ETSI EN 300 659 (all parts): “Access and Terminals (AT); Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services“. 13 ETSI ETR 150: “V5 interface; Public Switched

36、Telephone Network (PSTN) mappings“. 2.2 Informative references Not Applicable. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Access Gateway (AG): gateway device that interworks a significant number of analogue lin

37、es/ISDN accesses (directly or via an V5 Access Network) to a packet network and is located at the operators premises NOTE: An AG can take the form of a Media Gateway (A-MGW) or a Voice over IP Gateway (A-VGW). Media Gateway (MGW): gateway device acting at the media/transport plane, providing the fun

38、ctions of an MGF as defined in ES 282 001 1 NOTE 1: A MGW may additionally relay signalling traffic, in which case it also provides the functions of an SGF as defined in ES 282 001 1. NOTE 2: In the present document, Media Gateway refers both to Access Gateways and to Residential Gateways, to form a

39、 A-MGW, or a R-MGW, respectively. Media Gateway Controller (MGC): See ITU-T Recommendation H.248 11. Residential Gateway (RG): gateway device that interworks a small number of analogue lines/ISDN accesses NOTE: A residential gateway typically contains one or two analogue lines/ISDN accesses and is l

40、ocated at the customer premises. A RG can take the form of a Media Gateway (R-MGW) or a Voice over IP Gateway (R-VGW). ETSI ETSI TS 182 012 V2.1.4 (2008-03) 8 Voice over IP Gateway (VGW): SIP-based gateway device that connects legacy equipment to the NGN NOTE 1: A Voice over IP Gateways (VGW) plays

41、the role of an IMS UE with regards to the P-CSCF. NOTE 2: A Voice over IP Gateway can be classified as a AG or RG, to form a A-VGW, or a R-VGW, respectively. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AF Application Function AG Access Gateway AGCF

42、Access Gateway Control Function A-MGF Access Media Gateway Function A-MGW Access Media GateWay AN Access Node AS Application Server ASF Application Server Function ATA Analogue Terminal Adaptor A-VGW Access Voice over IP GateWay BCSM Basic Call State Model BGCF Breakout Gateway Control Function BGF

43、Border Gateway Function CCBS Call Completion on Busy Subscriber CSCF Call Session Control Function DDI Direct Dialling In DNS Domain Name Server DSS1 Digital Subscriber Signalling System No.1 GW GateWay HSS Home Subscriber Server IBCF Interconnection Border Control Function I-CSCF Interrogating-Call

44、 Session Control Function IM IP Multimedia IMS IP Multimedia Subsystem IM-SSF IP Multimedia-Service Switching Function ISDN Integrated Services Digital Network ISUP ISDN User Part IWF InterWorking Function MG Media GatewayMGC Media Gateway Controller MGCF Media Gateway Control Function MGF Media Gat

45、eway Function MGW Media Gateway MRFC Multimedia Resource Function Controller MRFP Multimedia Resource Function Processor NAPT Network Address Port Translation NASS Network Attachment SubSystemNGN Next Generation Network OSA Open Service Access PBX Private Branch Exchange P-CSCF Proxy-Call Session Co

46、ntrol Function PES PSTN/ISDN Emulation SubsystemPSTN Public Switched Telephone Network RACS Resource and Admission Control Subsystem RG Residential Gateway R-MGF Residential-MGF R-MGW Residential Media GateWay R-VGW Residential Voice over IP GateWay SCIM Service Capability Interaction Manager SCS Se

47、rvice Capability Server S-CSCF Serving-Call Session Control Function ETSI ETSI TS 182 012 V2.1.4 (2008-03) 9 SIGTRAN SIGnalling TRANsport SIP Session Initiation Protocol SLF Subscription Locator FunctionSS7 Signalling System n7 SSF Service Switching Function TDM Time Division Multiplexing TGW Trunki

48、ng Gateway T-MGF Trunking Media Gateway Function UE User Equipment UPSF User Profile Server Function VGW Voice over IP GateWay VoIP Voice over IP 4 Overview 4.1 PSTN/ISDN Emulation subsystem environment Figure 1 shows the PSTN/ISDN Emulation Subsystem and its relationships with other TISPAN NGN subs

49、ystem. Applications/ User Profiles Resourc e and Admission Control Subsystem Residential and Access MGW TISPAN PSTN/ISDN Emulation Subsystem Core IMS PSTN/ISDN (TD M based) Network Attachment Subsystem Charging functions Network Management Functions Other M M Subsystems Residential and Access VGW Figure 1: PSTN/ISDN Emulation Subsystem and its environment 4.2 Signalling configurations Figure 2 illustrates the signalling configurations supported by the PSTN/ISDN Emulation Subsystem (PES) described in the present document. PSTN/ISDN Emu

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