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Informationen zum Autor Dr. Karl Heinz Wolf, NIC.AT, Austria Karl Heinz Wolf studied Electrical Engineering and Computer Science at the Technical University of Vienna. Since his thesis work, he has focused on VoIP-related technologies, and now works for NIC.AT, which he joined in June 2007. In addition, Karl has contributed to a number of projects related to VoIP-based emergency calls. Furthermore, he has developed several prototypes of emergency calling technologies and is active in emergency-relevant working groups in the IETF. Richard Barnes, BBN Technologies, USA Richard Barnes is a leader in standards related to security and real-time applications on the Internet. He currently chairs the IETF GEOPRIV working group, and serves on the program committee for the Emergency Services Workshop. In addition, as a scientist at BBN Technologies, he leads efforts to prototype geolocation and emergency services technologies. Klappentext This book provides a comprehensive view of the emerging standards for VoIP emergency calling from an International perspective In this book, the authors provide a treatment of the VoIP emergency calling process that is both comprehensive, looking at all aspects of emergency calling, and practical, providing technical details on how such functions can be implemented. In addition, the authors describe the standardization efforts of the Internet Engineering Task Force who are currently working to improve the situation for VoIP emergency calls. The book provides an overview of emergency calling with a particular focus on the ECRIT emergency calling architecture, and discusses considerations related to implementation, deployment, and regulation of next-generation emergency calling. It also takes a look at practical aspects of emergency calling, with a set of exercises to help the reader get familiar with the technologies involved. Key Features: Discusses emerging standards for VoIP emergency calling from an international perspective Provides practical guides for implementing the core of the emergency calling architecture Contains architectural, practical, and regulatory perspectives Written by experts working on the development of emergency calling architectures and its implementation Includes an accompanying website with open-source software packages (http://www.voip-sos.net/) This book will be an invaluable resource for product managers and developers, equipment vendors, network operators, emergency service providers, and telecommunications regulators. Industry professionals interested in standards compliance will also find this book of interest. * Inhaltsverzeichnis Foreword ix Useful Links xi List of Abbreviations xiii 1 Introduction 1 1.1 Calling over the Internet 2 1.2 VoIP Emergency Calling Problem Statement 2 1.3 Emergency Communication 5 1.4 Overview of this Book 6 References 7 2 Emergency Calling 9 2.1 Overview 9 2.2 Infrastructure Requirements 10 2.3 The Role of Location Information 12 References 16 3 The ECRIT Emergency Calling Architecture 19 3.1 Overview 20 3.2 Location Information 22 3.2.1 PIDF-LO 23 3.2.2 Location by Value and Location by Reference 30 3.2.3 Location Conveyance 33 3.3 Service URNs 39 3.4 Determining the Appropriate PSAP - the LoST Protocol 40 3.4.1 The Mapping Process - findService 41 3.4.2 Retrieving the Service List - listServicesByLocation 44 3.4.3 Address Validation 46 3.4.4 Areas of Responsibility - serviceBoundary 47 3.4.5 LoST Server Discovery 49 3.4.6 LoST Architecture 50 3.4.7 Private and Public LoST Trees 53 3.4.8 LoST Synchronization 54 3.5 The Emergency Call Itself 57 3.5.1 Initiating Emergency Calls 58 3.5.2 R...
