ETSI TS 103 389-2015 Railway Telecommunications (RT) Global System for Mobile communications (GSM) Usage of Session Initiation Protocol (SIP) on theNetwork Switching Subsystem (NSS.pdf

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1、 ETSI TS 103 389 V3.0.1 (2015-11) Railway Telecommunications (RT); Global System for Mobile communications (GSM); Usage of Session Initiation Protocol (SIP) on theNetwork Switching Subsystem (NSS) to Fixed Terminal Subsystem (FTS) interface for GSM Operation on Railways TECHNICAL SPECIFICATION ETSI

2、ETSI TS 103 389 V3.0.1 (2015-11)2 Reference RTS/RT-0049 Keywords GSM-R, railways 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 Grass

3、e (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified with

4、out the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of t

5、he present document should be aware that the document may be subject to revision or change of status. Information on the current 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

6、one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The cont

7、ent of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade M

8、arks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 389 V3.0.1 (2015-11)3 C

9、ontents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g3Introduction 5g31 Scope 7g32 References 7g32.1 Normative references . 7g32.2 Informative references 9g33 Definitions and abbreviations . 10g33.1 Definitions 10g33.2 Abbreviations . 11g34 Reference System Architecture 12

10、g35 Interface Functionality . 13g35.0 General Description 13g35.1 Basic Call . 14g35.1.0 Primary Function 14g35.1.1 Progress Indication . 14g35.1.2 Early Media 14g35.2 Connected Parties Identity Information 14g35.3 Call Hold 14g35.4 Multi Level Precedence and Pre-emption 14g35.5 Voice Group Call and

11、 Broadcast Call Control . 14g35.6 User-User-Information-Element Transport 15g35.7 Reason Transport 15g35.8 Call Transfer Notification 15g35.9 Conferencing 15g35.10 Call Forwarding 15g35.11 Call Waiting . 16g36 Signalling Interface 16g36.1 Network Layer Protocol . 16g36.2 Transport Layer Protocol 16g

12、36.3 Signalling Protocol . 16g36.3.0 General Provisions 16g36.3.1 SIP Entities . 16g36.3.1.0 SIP networks . 16g36.3.1.1 SIP User Agent 17g36.3.1.2 SIP Proxy 17g36.3.2 SIP Request Methods 17g36.3.3 SIP Responses . 18g36.3.4 SIP Header Fields . 18g36.3.5 SIP Bodies 20g36.3.6 SIP URI Convention . 21g36

13、.3.6.0 General provisions 21g36.3.6.1 Display Name 22g36.3.6.2 User Part 22g36.3.6.3 Host Part 22g36.3.6.4 URI Parameters . 22g36.3.6.5 Use 23g36.3.6.6 Examples . 24g36.3.7 Option Tags 24g36.3.8 Feature Parameter . 25g36.4 Interface Functionality to Signalling Interface Mapping 25g36.4.0 General 25g

14、3ETSI ETSI TS 103 389 V3.0.1 (2015-11)4 6.4.1 Basic Call 25g36.4.2 Connected Parties Identity Information 26g36.4.3 Media Session Renegotiation and Call Hold 28g36.4.4 Early Media 30g36.4.5 Multi Level Precedence and Pre-emption . 32g36.4.5.0 General Provisions 32g36.4.5.1 Resource Priority. 33g36.4

15、.5.2 Reason Indication for Precedence and Pre-emption Events 33g36.4.5.3 Signalling Procedure for Precedence Call Blocking . 33g36.4.5.4 Signalling Procedure for Pre-emption . 34g36.4.6 Group Call and Broadcast Call Control 35g36.4.7 User-to-User-Information-Element Transport 35g36.4.8 Release Cause

16、 Transport . 35g36.4.9 SIP Session Timer . 36g36.4.10 OPTIONS Processing . 37g36.4.10.0 General Provisions 37g36.4.10.1 OPTIONS Heartbeating 38g36.4.11 Signalling for Group Call and Broadcast Call Control . 38g36.4.12 Call Transfer Notification . 40g36.4.13 Conferencing. 43g36.4.14 Call Forwarding 4

17、6g36.4.15 Call Waiting 48g37 Media Interface 49g37.1 Network Layer Protocol . 49g37.2 Transport Layer Protocol 49g37.3 Real-Time Transport Protocol 49g37.3.0 Genaral Provisions 49g37.3.1 Media inactivity detection 50g37.4 Media Codecs . 50g37.4.0 General Provisions 50g37.4.1 DTMF . 50g38 Recorder In

18、terface 51g38.1 Reference Architecture . 51g38.2 Interface Functionality . 52g38.2.0 General 52g38.2.1 Recording Session 52g38.3 Signalling Interface 52g38.4 Media interface . 54g38.4.0 General 54g38.4.1 Media mxing . 55g38.4.2 Multiple streams . 55g3Annex A (normative): Locating SIP Entities . 56g3

19、Annex B (informative): Quality of Service framework . 59g3Annex C (informative): Security Framework 60g3Annex D (informative): Mapping of EIRENE to Interface Features. 61g3Annex E (informative): Group Call Control Scenarios 63g3Annex F (informative): Bibliography . 65g3History 66g3ETSI ETSI TS 103 3

20、89 V3.0.1 (2015-11)5 Intellectual Property Rights IPRs essential or potentially essential 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: “

21、Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, in

22、cluding IPR searches, has been carried out by ETSI. No guarantee can be given 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 This Technical Specification (TS)

23、 has been produced by ETSI Technical Committee Railway Telecommunications (RT). Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Draftin

24、g Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. Introduction While a number of interoperability specifications for various interfaces at various layers of GSM-R systems exist, the interface betwe

25、en the Network Switching Subsystem (NSS) and the Fixed Terminal Subsystem (FTS) has not yet been addressed by any interoperability specification activity. In most of the GSM-R system deployments available at the time of the creation of the present document, the Network Switching Subsystem and the Fi

26、xed Terminal Subsystem are interconnected using TDM based interfaces such as DSS1 i.2. ETSI TS 102 610 9 specifies the usage and format of UUIE for call-related end-to-end functionality in GSM-R systems but no other interworking topics. The present document addresses the interoperability specificati

27、on gap between the Network Switching Subsystem and the Fixed Terminal Subsystem with an interface based on the Internet Protocol (IP) 2, the Session Initiation Protocol (SIP) 3, the Session Description Protocol (SDP) 6 and the Real-Time Transport Protocol (RTP) 7. In addition to the table of content

28、s, the following explanation will help you navigate through and understand the contents of the present document: Clauses 1 to 3 are predefined by ETSI. Clause 4 shows and explains the reference system architecture and identifies the interface(s) for the present document. Clause 5 holds the functiona

29、l requirements for the interface subject to the present document. Clause 6 specifies in detail the signalling interface for all supported functions and services. Clause 7 specifies in detail the media interface. Clause 8 specifies the additions and changes for a voice recorder interface. Annex A exp

30、lains the mechanism to locate SIP entities at the present interface. ETSI ETSI TS 103 389 V3.0.1 (2015-11)6 Annex B contains recommendations on the use and implementation of standardized Quality of Service mechanisms at the present interface. Annex C contains recommendations about the security mecha

31、nisms. Annex D contains a mapping table of EIRENE 1 to interface features. Annex E contains a description of group call control scenarios. ETSI ETSI TS 103 389 V3.0.1 (2015-11)7 1 Scope The present document defines the signalling and media interface between the Network Switching Subsystem and the Fi

32、xed Terminal Subsystem in order to provide a clear set of services needed for GSM-R operations. This includes voice call service and available call-related supplementary services. In addition, requirements for specific implementation of the signalling and media interface within either the Network Sw

33、itching Subsystem or the Fixed Terminal Subsystem are stated where applicable. The present document addresses the Internet Layer and upwards of the Internet Protocol Suite IETF RFC 1122 i.18 on the signalling and media interface. Any service other than voice call service and call-related supplementa

34、ry services (such as data services, Short Message Service, etc.) is out of scope of the present document; additional features may be addressed in future releases. The present document does not specify any other interface between the Network Switching Subsystem and the Fixed Terminal Subsystem nor do

35、es it cover any internal interfaces of either NSS or FTS. Such interfaces may be addressed in a future release of the present document. The present document does not address any specific 3GPP Release or Architecture. 2 References 2.1 Normative references References are either specific (identified by

36、 date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicl

37、y available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of th

38、e present document. 1 UIC P001D010 (Version 15.1): “UIC Project EIRENE System Requirements Specification“. NOTE: Available at http:/www.uic.org/IMG/pdf/eirene_srs_15.1.pdf. 2 IETF RFC 791 (1981): “Internet Protocol“. 3 IETF RFC 3261 (2002): “SIP: Session Initiation Protocol“. 4 IETF RFC 3264 (2002):

39、 “An Offer/Answer Model Session Description Protocol (SDP)“. 5 IETF RFC 4733 (2006): “RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals“. 6 IETF RFC 4566 (2006): “SDP: Session Description Protocol“. 7 IETF RFC 3550 (2003): “RTP: A Transport Protocol for Real-Time Applications“. 8 I

40、ETF RFC 3326 (2002): “The Reason Header Field for the Session Initiation Protocol (SIP)“. 9 ETSI TS 102 610 (V1.1.0): “Railways Telecommunications (RT); Global System for Mobile communications (GSM); Usage of the User-to-User Information Element for GSM Operation on Railways“. 10 IETF RFC 5234 (2008

41、): “Augmented BNF for Syntax Specifications: ABNF“. 11 IETF RFC 3262 (2002): “Reliability of Provisional Responses in Session Initiation Protocol (SIP)“. ETSI ETSI TS 103 389 V3.0.1 (2015-11)8 12 IETF RFC 4412 (2006): “Communications Resource Priority for the Session Initiation Protocol (SIP)“. 13 I

42、ETF RFC 3325 (2002): “Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks“. 14 IETF RFC 5876 (2010): “Updates to Asserted Identity in the Session Initiation Protocol (SIP)“. 15 IETF RFC 3323 (2002): “A Privacy Mechanism for the Session Initiation

43、 Protocol (SIP)“. 16 IETF RFC 4028 (2005): “Session Timers in the Session Initiation Protocol (SIP)“. 17 IETF RFC 3311 (2002): “The Session Initiation Protocol (SIP) UPDATE Method“. 18 Void. 19 Void. 20 Void. 21 Void. 22 Recommendation ITU-T Q.850 (1998): “Usage of cause and location in the Digital

44、Subscriber Signalling System No. 1 and the Signalling System No. 7 ISDN user part“. 23 Recommendation ITU-T E.164 (2010): “The international public telecommunication numbering plan“. 24 Recommendation ITU-T Q.955.3 (1993): “Stage 3 description for community of interest supplementary services using D

45、SS 1: Multi-level precedence and pre-emption (MLPP)“. 25 IETF RFC 3986 (2005): “Uniform Resource Identifier (URI): Generic Syntax“. 26 IETF RFC 768 (1980): “User Datagram Protocol“. 27 Recommendation ITU-T G.711 (1988): “Pulse code modulation (PCM) of voice frequencies“. 28 IETF RFC 2833 (2000): “RT

46、P Payload for DTMF Digits, Telephony Tones and Telephony Signals“. 29 Void. 30 IETF RFC 3840 (2004): “Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)“. 31 IETF RFC 4574 (2006): “The Session Description Protocol (SDP) Label Attribute“. 32 Recommendation ITU-T I.255.3 (1990

47、): “Multi-Level Precedence and Pre-emption service“. 33 IETF RFC 4579 (2006): “Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents“. 34 IETF RFC 3891 (2004): “The Session Initiation Protocol (SIP) “Replaces“ Header“. 35 IETF RFC 7462 (2015): “URNs for the Alert-Info Header

48、Field of the Session Initiation Protocol (SIP)“. 36 IETF RFC 4244 (2005): “An Extension to the Session Initiation Protocol (SIP) for Request History Information“. 37 IETF RFC 4458 (2006): “Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR)“

49、. 38 ETSI TS 129 163: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks (3GPP TS 29.163 Release 12)“. ETSI ETSI TS 103 389 V3.0.1 (2015-11)9 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For sp

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