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Ts 103 389 V2.0.0 (2014-08) ETSI TS 103 389 V2.0.0 (2014-08) TECHNICAL SPECIFICATION Railway Telecommunications (RT); Global System for Mobile communications (GSM); Usage of Session Initiation Protocol (SIP) on the Network Switching Subsystem (NSS) to Fixed Terminal Subsystem (FTS) interface for GSM Operation on Railways 2 ETSI TS 103 389 V2.0.0 (2014-08) Reference RTS/RT-00014 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 à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org 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 without 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 the 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 one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp 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 content 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 2014. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks 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 3 ETSI TS 103 389 V2.0.0 (2014-08) Contents Intellectual Property Rights ................................................................................................................................ 5 Foreword ............................................................................................................................................................. 5 Modal verbs terminology .................................................................................................................................... 5 Introduction ........................................................................................................................................................ 5 1 Scope ........................................................................................................................................................ 7 2 References ................................................................................................................................................ 7 2.1 Normative references ......................................................................................................................................... 7 2.2 Informative references ........................................................................................................................................ 8 3 Definitions and abbreviations ................................................................................................................... 9 3.1 Definitions .......................................................................................................................................................... 9 3.2 Abbreviations ................................................................................................................................................... 10 4 Reference System Architecture .............................................................................................................. 12 5 Interface Functionality ........................................................................................................................... 13 5.1 Basic Call ......................................................................................................................................................... 13 5.1.1 Progress Indication ..................................................................................................................................... 13 5.1.2 Early Media ................................................................................................................................................ 13 5.2 Connected Parties Identity Information ............................................................................................................ 13 5.3 Call Hold .......................................................................................................................................................... 13 5.4 Multi Level Precedence and Pre-emption ........................................................................................................ 14 5.5 Voice Group Call and Broadcast Call Control ................................................................................................. 14 5.6 User-User-Information-Element Transport ...................................................................................................... 14 5.7 Reason Transport .............................................................................................................................................. 14 6 Signalling Interface ................................................................................................................................ 14 6.1 Network Layer Protocol ................................................................................................................................... 14 6.2 Transport Layer Protocol .................................................................................................................................. 15 6.3 Signalling Protocol ........................................................................................................................................... 15 6.3.1 SIP Entities ................................................................................................................................................. 15 6.3.1.1 SIP User Agent ...................................................................................................................................... 15 6.3.1.2 SIP Proxy .............................................................................................................................................. 15 6.3.2 SIP Request Methods .................................................................................................................................. 16 6.3.3 SIP Responses ............................................................................................................................................. 16 6.3.4 SIP Header Fields ....................................................................................................................................... 17 6.3.5 SIP Bodies .................................................................................................................................................. 19 6.3.6 SIP URI Convention ................................................................................................................................... 20 6.3.6.1 Display Name ........................................................................................................................................ 21 6.3.6.2 User Part ................................................................................................................................................ 21 6.3.6.3 Host Part ................................................................................................................................................ 21 6.3.6.4 URI Parameters ..................................................................................................................................... 21 6.3.6.5 Use ........................................................................................................................................................ 21 6.3.6.6 Examples ............................................................................................................................................... 22 6.3.7 Option Tags ................................................................................................................................................ 23 6.4 Interface Functionality to Signalling Interface Mapping .................................................................................. 24 6.4.1 Basic Call .................................................................................................................................................... 24 6.4.2 Connected Parties Identity Information ...................................................................................................... 25 6.4.3 Media Session Renegotiation and Call Hold .............................................................................................
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