Federal Network Agency Federal Network Agency for Electricity, Gas, Telecommunications, Post and Railways Technical Guideline for the implementation of legal measures for the surveillance of telecommunications and the disclosure of information (TR TKÜV) * - Version of the EU Commission - For the purpose of understanding the Technical Guideline has been translated automatically. While encoding the element and parameter names of the national based solutions (e.g. XML- Codecs in Annex 'E' and 'F') the corresponding German terms must be used. Furthermore in cases of wrong or misleading translations the German Technical Guideline supersedes this translation. Edition 7.0 (EU notification) As at: 14 June 2017 Editor and publisher: Federal Network Agency for Electricity, Gas, Telecommunications, Post and Railways P.O. Box 80 01 55003 Mainz * Notifiziert gemäß der Richtlinie (EU) 2015/1535 des Europäischen Parlaments und des Rates vom 9. September 2015 über ein Informationsverfahren auf dem Gebiet der technischen Vorschriften und der Vorschriften für die Dienste der Informationsgesellschaft (ABl. L 241 vom 17.9.2015, S. 1). TR TKÜV, edition 7.0 Page 2 Table of contents Table of contents ........................................................................................................................................... 2 1 Scope of regulation ............................................................................................................................... 5 2 Content of the present edition of the Technical Guideline ............................................................... 6 3 Definitions .............................................................................................................................................. 7 4 Referenced standards ........................................................................................................................... 8 5 Abbreviations ...................................................................................................................................... 10 Part A Technical implementation of legal measures for the surveillance of telecommunications ... 12 1 Fundamentals ............................................................................................................................ 13 2 Structure ................................................................................................................................... 13 2.1 Overview of system- or service-specific appendices and the informational part ..................... 13 3 Fundamental requirements ....................................................................................................... 14 3.1 Transmission of the surveillance copy ..................................................................................... 14 3.1.1 General requirements for circuit-switched networks (PSTN and GSM) .................................. 15 3.1.2 General requirements for the GPRS mobile telephony service and for UMTS ........................ 16 3.1.3 General requirements for storage systems for voice, fax and data (voice-mail systems, Unified Messaging System(s), ...) ............................................................................................ 16 3.1.4 General requirements for the e-mail service ............................................................................. 16 3.1.5 General requirements for Internet gateways ............................................................................. 16 3.1.6 General requirements for VoIP and other multimedia services ................................................ 16 3.2 Standard values ......................................................................................................................... 17 3.3 Actions to provide the complete surveillance copy at the IP-based transmission point ........... 18 3.3.1 Buffer ....................................................................................................................................... 19 3.3.2 Agreement of the MTU size ..................................................................................................... 19 3.3.3 "Alive" test of the availability of the transmission line ............................................................ 19 3.3.4 Standardised error messages (HI1 messages) ........................................................................... 20 4 Other requirements ................................................................................................................... 21 4.1 Provisions on identifiers for implementation of surveillance actions ....................................... 21 4.2 Transmission procedure for notification and confirmation of functional tests for recording and analysis devices used by AAs ............................................................................ 22 Appendix A Fundamental stipulations concerning data transmission .................................... 23 Appendix A.1 Stipulations concerning FTAM and FTP .................................................................................. 23 Appendix A.1.1 File name .................................................................................................................................. 23 Appendix A.1.2 Parameters ................................................................................................................................ 25 Appendix A.2 Stipulations regarding participation in a VPN .......................................................................... 28 Appendix A.3 Transmission of HI1 and additional events .............................................................................. 30 Appendix A.3.1 Transmission options ................................................................................................................ 30 Appendix A.3.2 The national ASN.1 module 'Natparas' ..................................................................................... 31 Appendix A.3.2.1 Transmission using the ASN.1 module 'HI1NotificationOperations' .................................. 34 Appendix A.3.2.2 Implementation in the ASN.1 module 'HI2Operations' ....................................................... 35 Appendix A.3.2.3 Implementation in the ASN.1 module 'Umts-HI3-PS' ........................................................ 35 Appendix A.3.2.4 Transmission using the ASN.1 parameter 'National-Parameters' ........................................ 36 Appendix A.4 Difficulties in transmission of the surveillance copy to the AA's lines .................................... 38 Appendix B Transmission point for circuit-switched networks (national) .............................. 39 Appendix B.1 General requirements ................................................................................................................ 39 Appendix B.1.1 Reference number and allocation number ................................................................................ 39 Appendix B.1.2 Transmission of the copy of the informational content ............................................................ 40 Appendix B.1.3 Transmission of event data ....................................................................................................... 40 Appendix B.1.4 No transmission of information to the STS .............................................................................. 41 Appendix B.2 The data set ............................................................................................................................... 42 Appendix B.2.1 Structure of data sets ................................................................................................................ 43 Appendix B.2.2 Parameters for event data sets .................................................................................................. 44 Appendix B.3 Use of subaddresses .................................................................................................................. 51 Appendix B.4 Services and service attributes .................................................................................................. 54 TR TKÜV, edition 7.0 Page 3 Appendix C Provisions for PSTN and ISDN (ETSI ES 201 671 or TS 101 671) ......................... 60 Appendix C.1 Selection of options and stipulation of additional technical requirements ............................... 61 Appendix C.2 Explanations of the ASN.1 descriptions ................................................................................... 64 Appendix D Stipulations regarding GSM, GPRS, UMTS and LTE networks (3GPP TS 33.108) ....................................................................................................... 65 Appendix D.1 Selection of options and stipulation of additional technical requirements ............................... 66 Appendix D.2 Explanations of the ASN.1 descriptions ................................................................................... 73 Appendix E Transmission point for storage systems for voice, facsimile and data (voice-mail systems, Unified Messaging Systems, etc.) ....................................... 74 Appendix E.1 Definitions ................................................................................................................................ 74 Appendix E.2 General explanations ................................................................................................................ 74 Appendix E.3 Basic forwarding methods and determination