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Informationen zum Autor Mohamed Boucadair completed his degree at the Ecole Nationale Supérieure d'Ingénieur de Caen (Institut des Sciences de la Matière et des Rayonnements.) He currently works for France Telecom R&D and is part of the team working on VoIP services. He has previously been involved in IST research projects (TEQUILA, MESCAL, AGAVE), working on dynamic provisioning and inter-domain traffic engineering. Boucadair has also worked as an R&D engineer in charge of dynamic provisioning, QoS, multicast and intra/inter-domain traffic engineering. He has published many journal articles and written extensively on these subject areas. Klappentext Find out how IAX can complement SIP to overcome complications encountered in current SIP-based communicationsWritten by an expert in the field of telecommunications, this book describes the Inter-Asterisk Exchange protocol (IAX) and its operations, discussing the main characteristics of the protocol including NAT traversal, security, IPv6 support, interworking between IPv4 and IPv6, interworking with SIP and many others. The author presents the ways in which IAX can be activated so as to avoid complications such as NAT and the presence of intermediary boxes in operational architectures. This book analytically demonstrates the added values of IAX protocol compared to existing ones, while proposing viable deployment scenarios that assess the behavior of the protocol in operational networks.Key Features:* Promotes a viable alternative protocol to ease deployment of multimedia services* Analyses the capabilities of the IAX protocol and its ability to meet VoIP service provider requirements, and provides scenarios of introducing IAX within operational architectures* Addresses the advantages and disadvantages of SIP, and Details the features of IAX that can help, in junction with SIP, to overcome various disadvantages of SIP* Explores the added values of IAX protocol compared to existing protocols* Discusses the compatibility of new adopted architectures and associated protocolsThis book will be a valuable reference for service providers, protocol designers, vendors and service implementers. Lecturers and advanced students computer science, electrical engineering and telecoms courses will also find this book of interest. Zusammenfassung IAX analyses the capabilities of the IAX protocol and its ability to meet VoIP Service Provider requirements. Some scenarios of introducing IAX within operational architectures are also discussed. Inhaltsverzeichnis Foreword. Terminology and Definitions. Acronyms and Abbreviations. Acknowledgement. 1 Introduction. 1.1 General Introduction. 1.2 On Voice over IP and Telephony over IP. 1.3 Context. 1.4 Enhancement Strategies to Solve SIP Issues. 1.5 IAX: Towards Lightweight Telephony Architectures. 1.6 IAX and Standardisation. 1.7 Rationale. 1.8 What This Book is Not. 1.9 Structure of the Book. 2 The IAX Protocol at a Glance. 2.1 What Does IAX Stand For? 2.2 Is IAX Specific to the Asterisk Platform? 2.3 What is the Difference between IAX2 and IAX? 2.4 Why another New VoIP Protocol? 2.5 How Does IAX Solve VoIP Pains? 2.6 How is Calls Multiplexing Achieved? 2.7 And What About Demultiplexing? 2.8 What Port Number Does IAX Use? 2.9 What Transport Protocol Does IAX Use? 2.10 Is IAX a Reliable Protocol? 2.11 How Does IAX Ensure Reliability? 2.12 Is there an IAX Registration Procedure? 2.13 Does IAX Registration Differ from SIP Registration? 2.14 How Are Media Streams Transported in IAX? 2.15 Is CODEC Negotiation Supported by IAX? 2.16 Is On-Fly CODEC Change Possible During a Call? 2.17 IAX: a Path-Coupled or Decoupled Protocol? 2.18 Can IAX be Aware of the Status of the Network Load...
