Communications Network Traffic Data : Technical and Legal Aspects
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Communications network traffic data : technical and legal aspects Citation for published version (APA): Fischer, J. C. (2010). Communications network traffic data : technical and legal aspects. Technische Universiteit Eindhoven. https://doi.org/10.6100/IR689860 DOI: 10.6100/IR689860 Document status and date: Published: 01/01/2010 Document Version: Publisher’s PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. 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N.A.N.M. van Eijk A catalogue record is available from the Eindhoven University of Technology Library ISBN: 978-90-386-2339-9 Printed by PrintService TU/e Cover design by Paul Verspaget Table of contents Preface 1 INTRODUCTION...................................................................................................................1 1.1 Digital data cloud............................................................................................................1 1.2 Traffic data and fundamental rights.................................................................................5 1.2.1 Traffic data and the right to privacy.........................................................................5 1.2.2 Traffic data and the right to freedom of expression.................................................7 1.2.3 Conclusions.............................................................................................................8 1.3 Previous studies...............................................................................................................9 1.3.1 Asscher and Ekker (eds.) 2003: Traffic data............................................................9 1.3.2 Smits 2006: Criminal investigations of telecommunications................................11 1.4 Research design.............................................................................................................11 2 A TECHNICALLY NEUTRAL FRAMEWORK..................................................................15 2.1 Current definitions of traffic data..................................................................................15 2.1.1 Definitions in EU Directives.................................................................................15 2.1.2 Definition in the Netherlands Telecommunications Act........................................18 2.1.3 Problem cases arising from current definitions.....................................................18 2.2 Raising the definition’s abstraction level – widening the scope....................................20 2.2.1 Data Protection Directive 1995 on the processing of personal data......................20 Intrinsic motives for data processing..........................................................................22 2.2.2 Essential functions of the provider........................................................................23 Activities of direct marketing among the essential functions?...................................23 2.2.3 Intermediary service providers...............................................................................27 Safe harbor provisions – liability exemptions in Directive on electronic commerce. 27 2.2.4 3x3 Test for traffic data..........................................................................................30 2.3 Typification of traffic data.............................................................................................32 2.3.1 Type I and II traffic data.........................................................................................35 2.4 Conclusions...................................................................................................................36 3 TELEPHONY TRAFFIC DATA...........................................................................................37 3.1 PSTN / ISDN fixed telephony services.........................................................................38 3.1.1 Technical backgrounds...........................................................................................38 Telephony services in the Netherlands........................................................................38 Technical characteristics of PSTN / ISDN..................................................................40 Market for fixed telephony..........................................................................................41 Technical standardization............................................................................................43 3.1.2 Technical explorations of the telephone network..................................................45 Main blocks of the telephone network........................................................................45 ISDN...........................................................................................................................49 Signaling.....................................................................................................................50 Intelligent Network.....................................................................................................50 3.1.3 Technical outline of PSTN / ISDN traffic data......................................................51 Traffic data to perform the service agreement............................................................51 Traffic data for billing and verification of the service................................................51 Traffic data for traffic management and network maintenance..................................52 3.1.4 Technical typification of PSTN / ISDN traffic data...............................................52 3.2 GSM mobile telecommunications.................................................................................52 3.2.1 Technical background............................................................................................52 Technical characteristics of GSM...............................................................................54 Mobile telecommunications market............................................................................54 Technical standardization............................................................................................55 3.2.2 Technical explorations of GSM.............................................................................55 Cellular structure.........................................................................................................56 GSM sub-systems.......................................................................................................56 Registers and numbers................................................................................................59 Administrative procedures in GSM............................................................................61 Billing and accounting................................................................................................66 SMS and MMS...........................................................................................................68 Location data and location-based services..................................................................68 E112 and eCall............................................................................................................70 Post-GSM developments............................................................................................71 3.2.3 Technical outline of GSM