DOCSLIB.ORG

S3-040460 S4-040309 LS on DRM For

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
S3-040460 S4-040309 LS on DRM For 3GPP TSG SA WG3 Security — S3#34 S3-040460 July 6 - 9, 2004 Acapulco, Mexico 3GPP TSG-SA4 Meeting #31 Tdoc S4-040309 Montreal, Canada, 17 - 21 May 2004 Title: Liaison statement on DRM protection for PSS Source: 3GPP TSG SA4 To: 3GPP TSG SA3 Cc: OMA-BAC DL+DRM, ISMA Contact Person: Name: Per Fröjdh Tel. Number: +46 8 404 8188 E-mail Address: [email protected] Attachments: Working Draft 3GPP TS 26.234 V0.5.0: “PSS; Protocols and codecs” (S4-040308) 3GPP TS 26.244 V6.0.0: "PSS; 3GPP file format (3GP)" 1. Overall Description: SA4 would like to inform SA3 that it has made recent progress on DRM protection for the transparent end-to- end Packet-switched Streaming Service (PSS). The attached working draft of TS 26.234 (V0.5.0) includes our working assumption implementing DRM confidentiality protection of streamed media and an optional mechanism for integrity protection using SRTP. The attached TS 26.244 (V6.0.0) includes support for SRTP in 3GP files. Key management is handled by using OMA DRM 2.0. The current status of our specifications, implementing the working assumption, is as follows: • TS 26.234 V0.5.0 o This is the Release-6 working draft of the PSS protocols and codecs specification. SA4 will finalize the draft in August 2004 and send it to SA for approval at SA#25 in September 2004. (Other Release-6 functionality of TS 26.234 has been sent to SA for approval at SA#24 in June 2004.) o It contains the necessary extensions for DRM protection of PSS. It includes all details on signaling encrypted media as well as the transport format (RTP payload wrapper payload format). It also includes the mechanism for integrity protection and key handling based on SRTP. • TS 26.244 V6.0.0 o This is the 3GP file format specification approved for Release 6. o It includes support for carrying encrypted and protected media, as well as support for streaming servers to apply integrity protection using SRTP. 2. Actions for SA3: SA4 kindly asks SA3 to review the working assumption for DRM protection of PSS and would appreciate any comments before it is finalized at SA4#32. 3. Dates of next 3GPP SA4 meetings: 16 – 20 Aug 2004 TSG-SA4#32 Location: TBD. 22 – 26 Nov 2004 TSG-SA4#33 Location: Helsinki, Finland. 4. Dates of next 3GPP SA meetings: 7 – 10 June 2004 TSG-SA#24 Location: Seoul, Korea. 13 – 16 Sep 2004 TSG-SA#25 Location: Palms Springs, US. 3GPP TS 26.234 V0.54.01 (2004-05-2112) Technical Specification 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs (Release 6) TSG-SA4 PSM SWG internal working draft The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP. The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented. This Specification is provided for future development work within 3GPP only. The Organisational Partners accept no liability for any use of this Specification. Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners' Publications Offices. Release 6 3 3GPP TS 26.234 V0.54.01 (2004-05-2112) Keywords UMTS, IP, packet mode, protocol, codec 3GPP Postal address 3GPP support office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Internet http://www.3gpp.org Copyright Notification No part may be reproduced except as authorised by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © 2003, 3GPP Organisational Partners (ARIB, CCSA, ETSI, T1, TTA, TTC). All rights reserved. 3GPP Release 6 4 3GPP TS 26.234 V0.54.01 (2004-05-2112) Contents Foreword.............................................................................................................................................................8 Introduction ........................................................................................................................................................8 1 Scope ........................................................................................................................................................9 2 References ................................................................................................................................................9 3 Definitions and abbreviations.................................................................................................................12 3.1 Definitions..............................................................................................................................................................12 3.2 Abbreviations.........................................................................................................................................................13 4 System description .................................................................................................................................14 5 Protocols.................................................................................................................................................15 5.1 Session establishment ............................................................................................................................................15 5.2 Capability exchange...............................................................................................................................................16 5.2.1 General .............................................................................................................................................................16 5.2.2 The device capability profile structure .............................................................................................................16 5.2.3 Vocabularies for PSS........................................................................................................................................16 5.2.3.1 General .............................................................................................................................................................16 5.2.3.2 PSS base vocabulary ........................................................................................................................................16 5.2.3.2.1 PssCommon component .............................................................................................................................17 5.2.3.2.2 Streaming component .................................................................................................................................19 5.2.3.2.3 3gpFileFormat component..........................................................................................................................22 5.2.3.2.4 PssSmil component.....................................................................................................................................24 5.2.3.3 Attributes from UAProf....................................................................................................................................25 5.2.4 Extensions to the PSS schema/vocabulary .......................................................................................................27 5.2.4.1 Vocabulary definitions .....................................................................................................................................27 5.2.4.2 Backward compatibility ...................................................................................................................................27 5.2.5 Signalling of profile information between client and server ............................................................................27 5.2.6 Merging device capability profiles...................................................................................................................28 5.2.7 Profile transfer between the PSS server and the device profile server .............................................................29 5.3 Session set-up and control......................................................................................................................................29 5.3.1 General .............................................................................................................................................................29 5.3.2 RTSP ................................................................................................................................................................29 5.3.2.1 The 3GPP-Link-Char header............................................................................................................................29 5.3.2.2 The 3GPP-Adaptation header...........................................................................................................................30 5.3.2.3 The Quality of Experience headers ..................................................................................................................31 5.3.2.3.1 Protocol initiation and termination .............................................................................................................31 5.3.2.3.2 Metrics feedback.........................................................................................................................................32 5.3.3 SDP ..................................................................................................................................................................33
Load more

Recommended publications
  • Packetcable™ 2.0 Codec and Media Specification PKT-SP-CODEC
    PacketCable™ 2.0 Codec and Media Specification PKT-SP-CODEC-MEDIA-I10-120412 ISSUED Notice This PacketCable specification is the result of a cooperative effort undertaken at the direction of Cable Television Laboratories, Inc. for the benefit of the cable industry and its customers. This document may contain references to other documents not owned or controlled by CableLabs. Use and understanding of this document may require access to such other documents. Designing, manufacturing, distributing, using, selling, or servicing products, or providing services, based on this document may require intellectual property licenses from third parties for technology referenced in this document. Neither CableLabs nor any member company is responsible to any party for any liability of any nature whatsoever resulting from or arising out of use or reliance upon this document, or any document referenced herein. This document is furnished on an "AS IS" basis and neither CableLabs nor its members provides any representation or warranty, express or implied, regarding the accuracy, completeness, noninfringement, or fitness for a particular purpose of this document, or any document referenced herein. 2006-2012 Cable Television Laboratories, Inc. All rights reserved. PKT-SP-CODEC-MEDIA-I10-120412 PacketCable™ 2.0 Document Status Sheet Document Control Number: PKT-SP-CODEC-MEDIA-I10-120412 Document Title: Codec and Media Specification Revision History: I01 - Released 04/05/06 I02 - Released 10/13/06 I03 - Released 09/25/07 I04 - Released 04/25/08 I05 - Released 07/10/08 I06 - Released 05/28/09 I07 - Released 07/02/09 I08 - Released 01/20/10 I09 - Released 05/27/10 I10 – Released 04/12/12 Date: April 12, 2012 Status: Work in Draft Issued Closed Progress Distribution Restrictions: Authors CL/Member CL/ Member/ Public Only Vendor Key to Document Status Codes: Work in Progress An incomplete document, designed to guide discussion and generate feedback, that may include several alternative requirements for consideration.
    [Show full text]
  • Audio/Video Transport Working Group
    Audio/Video Transport Working Group 60th IETF – San Diego 1 - 6 August 2004 Colin Perkins <[email protected]> Magnus Westerlund <[email protected]> Mailing list: <[email protected]> Agenda - Tuesday Introduction and Status Update 15 RTCP XR MIB 15 RTP Payload/Generic FEC-Encoded Time-Sensitive Media 15 RTP Payload Formats for H.261 and H.263 15 RTP Payload Format for JPEG 2000 15 RTP Payload Format for VMR-WB 15 RTP Payload Format for AMR-WB+ 15 RTP Payload Format for 3GPP Timed Text 15 RTP Payload Format for Text Conversation 5 RTP and MIME types 25 Agenda - Wednesday Introduction 5 Framing RTP on Connection-Oriented Transport 10 RTCP Extensions for SSM 15 RTP Profile for RTCP-based Feedback 15 RTP Profile for TFRC 15 Req. for Transport of Video Control Commands 15 Header Compression over MPLS 15 A Multiplexing Mechanism for RTP 15 MRTP: Multi-Flow Real-time Transport Protocol 15 Intellectual Property When starting a presentation you MUST say if: • There is IPR associated with your draft • The restrictions listed in section 5 of RFC 3667 apply to your draft When asking questions or commenting on a draft: • You MUST disclose any IPR you know of relating to the technology under discussion Reference: RFC 3667/3668 and the “Note Well” text Document Status Standards Published: • STD 64: RTP: A Transport Protocol for Real-Time Application, RFC 3550 • STD 65: RTP Profile for Audio and Video Conferences with Minimal Control, RFC 3551 References MUST include STD number, example: H. Schulzrinne, et. al., "RTP: A Transport Protocol for Real-Time Applications", STD 64, RFC 3550, Internet Engineering Task Force, July 2003.
    [Show full text]
  • RFC 8872: Guidelines for Using the Multiplexing Features of RTP To
    Stream: Internet Engineering Task Force (IETF) RFC: 8872 Category: Informational Published: January 2021 ISSN: 2070-1721 Authors: M. Westerlund B. Burman C. Perkins H. Alvestrand R. Even Ericsson Ericsson University of Glasgow Google RFC 8872 Guidelines for Using the Multiplexing Features of RTP to Support Multiple Media Streams Abstract The Real-time Transport Protocol (RTP) is a flexible protocol that can be used in a wide range of applications, networks, and system topologies. That flexibility makes for wide applicability but can complicate the application design process. One particular design question that has received much attention is how to support multiple media streams in RTP. This memo discusses the available options and design trade-offs, and provides guidelines on how to use the multiplexing features of RTP to support multiple media streams. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are candidates for any level of Internet Standard; see Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc8872. Copyright Notice Copyright (c) 2021 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document.
    [Show full text]
  • RFC 3016 RTP Payload Format for MPEG-4 Audio/Visual November 2000
    Network Working Group Y. Kikuchi Request for Comments: 3016 Toshiba Category: Standards Track T. Nomura NEC S. Fukunaga Oki Y. Matsui Matsushita H. Kimata NTT November 2000 RTP Payload Format for MPEG-4 Audio/Visual Streams Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2000). All Rights Reserved. Abstract This document describes Real-Time Transport Protocol (RTP) payload formats for carrying each of MPEG-4 Audio and MPEG-4 Visual bitstreams without using MPEG-4 Systems. For the purpose of directly mapping MPEG-4 Audio/Visual bitstreams onto RTP packets, it provides specifications for the use of RTP header fields and also specifies fragmentation rules. It also provides specifications for Multipurpose Internet Mail Extensions (MIME) type registrations and the use of Session Description Protocol (SDP). 1. Introduction The RTP payload formats described in this document specify how MPEG-4 Audio [3][5] and MPEG-4 Visual streams [2][4] are to be fragmented and mapped directly onto RTP packets. These RTP payload formats enable transport of MPEG-4 Audio/Visual streams without using the synchronization and stream management functionality of MPEG-4 Systems [6]. Such RTP payload formats will be used in systems that have intrinsic stream management Kikuchi, et al. Standards Track [Page 1] RFC 3016 RTP Payload Format for MPEG-4 Audio/Visual November 2000 functionality and thus require no such functionality from MPEG-4 Systems.
    [Show full text]
  • Dialogic® Bordernet™ Product Description
    Dialogic® BorderNet™ Virtualized Session Border Controller Product Description Release 3.3.1 Dialogic® BorderNet™ Virtualized Session Border Controller Product Description Copyright and Legal Notice Copyright © 2013-2016 Dialogic Corporation. All Rights Reserved. You may not reproduce this document in whole or in part without permission in writing from Dialogic Corporation at the address provided below. All contents of this document are furnished for informational use only and are subject to change without notice and do not represent a commitment on the part of Dialogic Corporation and its affiliates or subsidiaries (“Dialogic”). Reasonable effort is made to ensure the accuracy of the information contained in the document. However, Dialogic does not warrant the accuracy of this information and cannot accept responsibility for errors, inaccuracies or omissions that may be contained in this document. INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH DIALOGIC® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN A SIGNED AGREEMENT BETWEEN YOU AND DIALOGIC, DIALOGIC ASSUMES NO LIABILITY WHATSOEVER, AND DIALOGIC DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF DIALOGIC PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT OF A THIRD PARTY. Dialogic products are not intended for use in certain safety-affecting situations. Please see http://www.dialogic.com/company/terms-of- use.aspx for more details. Due to differing national regulations and approval requirements, certain Dialogic products may be suitable for use only in specific countries, and thus may not function properly in other countries.
    [Show full text]
  • Preview - Click Here to Buy the Full Publication
    This is a preview - click here to buy the full publication IEC 62481-2 ® Edition 2.0 2013-09 INTERNATIONAL STANDARD colour inside Digital living network alliance (DLNA) home networked device interoperability guidelines – Part 2: DLNA media formats INTERNATIONAL ELECTROTECHNICAL COMMISSION PRICE CODE XH ICS 35.100.05; 35.110; 33.160 ISBN 978-2-8322-0937-0 Warning! Make sure that you obtained this publication from an authorized distributor. ® Registered trademark of the International Electrotechnical Commission This is a preview - click here to buy the full publication – 2 – 62481-2 © IEC:2013(E) CONTENTS FOREWORD ......................................................................................................................... 20 INTRODUCTION ................................................................................................................... 22 1 Scope ............................................................................................................................. 23 2 Normative references ..................................................................................................... 23 3 Terms, definitions and abbreviated terms ....................................................................... 30 3.1 Terms and definitions ............................................................................................ 30 3.2 Abbreviated terms ................................................................................................. 34 3.4 Conventions .........................................................................................................
    [Show full text]
  • TANDBERG and H.323
    SIP D50444 revision 1.1 May 2008 TANDBERG and SIP TABLE OF CONTENTS INTRODUCTION ........................................................................................................................................5 WHAT IS SIP?............................................................................................................................................6 Components ...............................................................................................................................................6 User Agent........................................................................................................................................6 Proxy Server.....................................................................................................................................6 Registrar...........................................................................................................................................7 Redirect Server ................................................................................................................................7 Requests for Comments.............................................................................................................................7 SIP Messages.............................................................................................................................................9 SIP Requests ...................................................................................................................................9
    [Show full text]
  • Dialogic® Bordernet™ Virtualized Session Border Controller (SBC) Product Description Document
    Dialogic® BorderNet™ Virtualized Session Border Controller (SBC) Product Description Document July 2013 www.dialogic.com Copyright and Legal Notice Copyright © 2011-2013 Dialogic Inc. All Rights Reserved. You may not reproduce this document in whole or in part without permission in writing from Dialogic Inc. at the address provided below. All contents of this document are furnished for informational use only and are subject to change without notice and do not represent a commitment on the part of Dialogic Inc. and its affiliates or subsidiaries (“Dialogic”). Reasonable effort is made to ensure the accuracy of the information contained in the document. However, Dialogic does not warrant the accuracy of this information and cannot accept responsibility for errors, inaccuracies or omissions that may be contained in this document. INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH DIALOGIC® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN A SIGNED AGREEMENT BETWEEN YOU AND DIALOGIC, DIALOGIC ASSUMES NO LIABILITY WHATSOEVER, AND DIALOGIC DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF DIALOGIC PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT OF A THIRD PARTY. Dialogic products are not intended for use in certain safety-affecting situations. Please see http://www.dialogic.com/company/terms-of-use.aspx for more details. Due to differing national regulations and approval requirements, certain Dialogic products may be suitable for use only in specific countries, and thus may not function properly in other countries.
    [Show full text]
  • Network Working Group S. Casner Request for Comments: 3555 Packet Design Category: Standards Track P
    Network Working Group S. Casner Request for Comments: 3555 Packet Design Category: Standards Track P. Hoschka W3C/INRIA/MIT July 2003 MIME Type Registration of RTP Payload Formats Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2003). All Rights Reserved. Abstract This document defines the procedure to register RTP Payload Formats as audio, video or other MIME subtype names. This is useful in a text-based format or control protocol to identify the type of an RTP transmission. This document also registers all the RTP payload formats defined in the RTP Profile for Audio and Video Conferences as MIME subtypes. Some of these may also be used for transfer modes other than RTP. Table of Contents 1. Introduction .................................................. 2 1.1. IANA Considerations ...................................... 2 1.2. Terminology .............................................. 3 2. Procedure For Registering MIME Types for RTP Payload Types .... 3 3. Mapping to SDP Parameters ..................................... 5 4. Registrations for "Audio/Video Profile" ....................... 6 4.1. Audio Type Registrations ................................. 6 4.2. Video Type Registrations
    [Show full text]
  • Preview - Click Here to Buy the Full Publication
    This is a preview - click here to buy the full publication IEC 62481-2 ® Edition 3.0 2017-07 INTERNATIONAL STANDARD Digital living network alliance (DLNA) home networked device interoperability guidelines – Part 2: Media format profiles INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.160; 35.100.05; 35.110 ISBN 978-2-8322-4672-6 Warning! Make sure that you obtained this publication from an authorized distributor. ® Registered trademark of the International Electrotechnical Commission This is a preview - click here to buy the full publication – 2 – IEC 62481-2:2017 © IEC 2017 CONTENTS FOREWORD ......................................................................................................................... 13 INTRODUCTION ................................................................................................................... 15 1 Scope ............................................................................................................................ 16 2 Normative references .................................................................................................... 16 3 Terms, definitions, abbreviated terms and conventions .................................................. 22 3.1 Terms and definitions............................................................................................ 22 3.2 Abbreviated terms ................................................................................................. 31 3.3 Conventions .........................................................................................................
    [Show full text]
  • Dialogic® Bordernet™ Product Description
    Dialogic® BorderNet™ Virtualized Session Border Controller Product Description Release 3.4 Dialogic® BorderNet™ Virtualized Session Border Controller Product Description Copyright and Legal Notice Copyright © 2012-2016 Dialogic Corporation. All Rights Reserved. You may not reproduce this document in whole or in part without permission in writing from Dialogic Corporation at the address provided below. All contents of this document are furnished for informational use only and are subject to change without notice and do not represent a commitment on the part of Dialogic Corporation and its affiliates or subsidiaries (“Dialogic”). Reasonable effort is made to ensure the accuracy of the information contained in the document. However, Dialogic does not warrant the accuracy of this information and cannot accept responsibility for errors, inaccuracies or omissions that may be contained in this document. INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH DIALOGIC® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN A SIGNED AGREEMENT BETWEEN YOU AND DIALOGIC, DIALOGIC ASSUMES NO LIABILITY WHATSOEVER, AND DIALOGIC DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF DIALOGIC PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT OF A THIRD PARTY. Dialogic products are not intended for use in certain safety-affecting situations. Please see http://www.dialogic.com/company/terms-of-use.aspx for more details. Due to differing national regulations and approval requirements, certain Dialogic products may be suitable for use only in specific countries, and thus may not function properly in other countries.
    [Show full text]
  • TS 102 005 V1.2.1 (2006-04) Technical Specification
    ETSI TS 102 005 V1.2.1 (2006-04) Technical Specification Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in DVB services delivered directly over IP protocols European Broadcasting Union Union Européenne de Radio-Télévision EBU·UER 2 ETSI TS 102 005 V1.2.1 (2006-04) Reference RTS/JTC-DVB-171 Keywords 3GPP, audio, broadcasting, digital, DVB, MPEG, TV, video 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 Individual 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 Format (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 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 except as authorized by written permission.
    [Show full text]