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Olivier Hersent IP Telephony


IP (internet protocol) Telephony, enabled by softswitches, is going to usher in a new era in telecommunications. By putting voice and data over one IP network, operators can enjoy lower costs and create new, revenue-generating «multimedia» services. This valuable reference offers a comprehensive overview of the technology behind IP telephony and offers essential information to network engineers, designers and managers who need to understand the protocols and explore the issues involved in migrating the existing telephony infrastructure to an IP-based real time communication service. Drawing on extensive research and practical development experience in VoIP from its earliest stages, the authors give access to all the relevant standards and cutting-edge techniques in a single resource. IP Telephony: Deploying Voice-over-IP Protocols: Assumes a working knowledge of IP and networking and addresses the technical aspects of real-time communication over IP. Presents a high level overview of packet media transport technologies, covering all the major VoIP protocols – SIP, H323 and MGCP Details specific strategies to design services for public networks where endpoints cannot be trusted and can be behind firewalls. Explores the problems that may arise from incomplete protocol implementations, or architectures optimized for private networks which fail in a public environment. This amply illustrated, state-of-the art reference tool will be an invaluable resource for all those involved in the practical deployment of VoIP technology.

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Olivier Hersent IP Telephony. Deploying VoIP Protocols and IMS Infrastructure


All you need to know about deploying VoIP protocols in one comprehensive and highly practical reference – Now updated with coverage on SIP and the IMS infrastructure This book provides a comprehensive and practical overview of the technology behind Internet Telephony (IP), providing essential information to Network Engineers, Designers, and Managers who need to understand the protocols. Furthermore, the author explores the issues involved in the migration of existing telephony infrastructure to an IP – based real time communication service. Assuming a working knowledge of IP and networking, it addresses the technical aspects of real-time applications over IP. Drawing on his extensive research and practical development experience in VoIP from its earliest stages, the author provides an accessible reference to all the relevant standards and cutting-edge techniques in a single resource. Key Features: Updated with a chapter on SIP and the IMS infrastructure Covers ALL the major VoIP protocols – SIP, H323 and MGCP Includes a large section on practical deployment issues gleaned from the authors’ own experience Chapter on the rationale for IP telephony and description of the technical and business drivers for transitioning to all IP networks This book will be a valuable guide for professional network engineers, designers and managers, decision makers and project managers overseeing VoIP implementations, market analysts, and consultants. Advanced undergraduate and graduate students undertaking data/voice/multimedia communications courses will also find this book of interest. Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility, provider of IMS based M2M and smartgrid infrastructure and applications.

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Olivier Hersent Beyond VoIP Protocols


In 1999-2000, VoIP (Voice-over-IP) telephony was one of the most successful buzzwords of the telecom bubble era. However, in 2001-2003, VoIP faced a very tough reality check. Now, manufacturers and service providers are drawing on what they have learnt from past experience in order to prepare to participate in the next major challenge faced by the telecommunications industry. This book offers a comprehensive overview of the issues to solve in order to deploy global revenue-generating effective «multimedia» services. Drawing on extensive research and practical deployment experience in VoIP, the authors provide essential advice for those seeking to design and implement a post-bubble VoIP network. Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony Introduces the basics of speech coding and voice quality Demonstrates how quality of service may be built into the network and deals with dimensioning aspects, e.g. multipoint communications and how to model call seizures. Explores the potential of multicast to turn an IP backbone into an optimized broadcast medium Includes amply illustrated, state-of-the-art practical advice for formulating a complete deployment strategy A companion volume to «IP Telephony: Deploying VoIP Protocols», this book takes the reader a stage deeper into how to prepare the network and exploit VoIP technology to its full potential.

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IP Telephony (eBook, PDF) von Olivier Hersent - Portofrei ...

Olivier Hersent founded NetCentrex, a leading provider of VoIPinfrastructure for service providers, then became CTO of Comverseafter the acquisition of NetCentrex. He now manages Actility,provider of IMS based M2M and smartgrid infrastructure andapplications.

IP Telephony: Deploying VoIP Protocols and IMS ...

Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility, provider of IMS based M2M and smartgrid infrastructure and applications.

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IP Telephony Packet-Based Multimedia Communications Systems by Olivier Hersent ISBN 13: 9780201619102 ISBN 10: 0201619105 Hardcover; "we Accept Eus Via Paypal": Addison-Wesley Professional, December 17, 1999; ISBN-13: 978-0201619102

IP Telephony (2nd ed.) by Hersent, Olivier (ebook)

IP Telephony: Deploying VoIP Protocols and IMS Infrastructure (2nd ed.) by Olivier Hersent. All you need to know about deploying VoIP protocols in one comprehensive and highly practical reference - Now updated with coverage on SIP and the IMS infrastructure This book provides a comprehensive and practical overview of the technology behind Internet Telephony (IP), providing essential ...

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IP Telephony - ISBN: 9780470973264 - (ebook) - von Olivier Hersent, Verlag: Wiley ... graduate students undertaking data/voice/multimedia communications courses will also find this book of interest.</p> <p>Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility ...

Olivier Hersent - CEO and founder - Actility | LinkedIn

I first met Olivier while working at Cisco in the early days of voice over IP (VoIP) on H.323. I then worked with Olivier at Necentrex. From personal experience, I can tell you that Olivier has an exceptional ability to understand, analyze, and break down the most complicated tasks in a way that is easily understood by others. Aside from his technical expertise, Olivier is also a respected ...

IP telephony : Olivier Hersent : Free Download, Borrow ...

IP telephony by Olivier Hersent. Publication date 2000 Topics Internet telephony., TCP/IP (Computer network protocol) Publisher Addison-Wesley Collection inlibrary; printdisabled; internetarchivebooks; china Digitizing sponsor Kahle/Austin Foundation Contributor Internet Archive Language English. Access-restricted-item true Addeddate 2012-11-09 20:52:54 Bookplateleaf 0004 Boxid IA1153612 Boxid ...

IP Telephony by Olivier Hersent - goodreads.com

IP Telephony book. Read reviews from world’s largest community for readers. I recommend this book to all VoIP engineers, analysts, and IT managers who re...

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IP Telephony: Deploying Voice-over-IP Protocols: * Assumes a working knowledge of IP and networking and addressesthe technical aspects of real-time communication over IP. * Presents a high level overview of packet media transporttechnologies, covering all the major VoIP protocols - SIP,H323 and MGCP * Details specific strategies to design services for publicnetworks where endpoints cannot be ...

IP Telephony (eBook, ePUB) von Olivier Hersent - Portofrei ...

All you need to know about deploying VoIP protocols in one comprehensive and highly practical reference - Now updated with coverage on SIP and the IMS infrastructure This book provides a comprehensive and practical overview of the technology behind Internet Telephony (IP), providing essential information to Network Engineers, Designers, and Managers who need to understand the protocols.

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Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility, provider of IMS based M2M and smartgrid infrastructure and applications. Inhaltsverzeichnis zu „IP Telephony “

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IP Telephony: Deploying VoIP Protocols and IMS Infrastructure (English Edition) eBook: Hersent, Olivier: Amazon.de: Kindle-Shop Wählen Sie Ihre Cookie-Einstellungen Wir verwenden Cookies und ähnliche Tools, um Ihr Einkaufserlebnis zu verbessern, um unsere Dienste anzubieten, um zu verstehen, wie die Kunden unsere Dienste nutzen, damit wir Verbesserungen vornehmen können, und um Werbung ...

IP Telephony By Olivier Hersent | Used | 9780470023594 ...

Buy IP Telephony: Deploying Voice-over-IP Protocols By Olivier Hersent. Available in used condition with free delivery in the US. ISBN: 9780470023594. ISBN-10: 0470023597

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Beyond VoIP Protocols: Understanding Voice Technology and ...

Olivier Hersent is Chairman and CTO of NetCentrex, France (Market Leader in VoIP deployments in Europe). Jean-Pierre Petit is Head of Voice Technology at France Telecom. David Gurle is Vice...

‎IP Telephony on Apple Books

Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility, provider of IMS based M2M and smartgrid infrastructure and applications.

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Beyond VoIP Protocols (eBook, PDF) von Olivier Hersent ...

In 1999-2000, VoIP (Voice-over-IP) telephony was one of the mostsuccessful buzzwords of the telecom bubble era. However, in2001-2003, VoIP faced a very tough reality check.

IP Telephony: Hersent, Olivier: 9780201619102: Books ...

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IP Telephony | Wiley Online Books

Olivier Hersent, Consultant, France Olivier Hersent was the founder of NetCentrex and former CTO of Comverse Inc., and previously worked as an R&D Engineer at Orange/France Telecom. He studied finance, quantum physics and psychology at the Ecole Polytechnique from 1991-1994. Hersent is now an independent consultant.

The Internet of Things: Key Applications and Protocols ...

Olivier Hersent, Consultant, France Olivier Hersent was the founder of NetCentrex and former CTO of Comverse Inc., and previously worked as an R&D Engineer at Orange/France Telecom. He studied finance, quantum physics and psychology at the Ecole Polytechnique from 1991-1994. Hersent is now an independent consultant.

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Olivier Hersent | M2M Forum

Olivier Hersent CEO Actility. Olivier is a French entrepreneur who created NetCentrex, a supplier of advanced VoIP solutions for network operators, in the nineties. His business leadership, technical innovation and market vision allowed him to set up and guide the company through global expansion, becoming a main leader in next generation telecommunication solutions. Oliver sold the company in ...

IP Telephony: Hersent, Olivier: 9780201619102: Amazon.com ...

IP Telephony is organized into three clearly structured sections, focusing on protocols, voice technology and networks with a step-by-step approach. The protocols section sets IP telephony in context and then covers H.323, SIP and MGCP in detail, examining in turn their pros and cons, and using examples of particular cases and scenarios. The voice technology section describes voice quality ...

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The Internet of Things (eBook, ePUB) von Olivier Hersent ...

An all-in-one reference to the major Home Area Networking, Building Automation and AMI protocols, including 802.15.4 over radio or PLC, 6LowPAN/RPL, ZigBee 1.

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Shyam Chakraborty IMS Multimedia Telephony over Cellular Systems


IMS Multimedia Telephony service has been standardized in 3GPP as the replacement of the circuit switched telephony service in cellular networks. The multimedia telephony service consists of several service components such as voice, video and text. ‘IMS Multimedia Telephony over Cellular Systems’ provides a comprehensive overview of the service that will enable enriched telephony for mobile users. Enriched telephony fulfils the user’s desire to communicate in new ways, for example by sharing pictures and video clips. In addition to an overview of the Multimedia Telephony service, the book focuses on the modern media processing methods, which allows the quality of the packet switched voice and video telephony not only to match but also possibly exceed the quality of circuit switched telephony. Such key components as adaptive jitter buffering and adaptation of conversational media are explained in detail. Key features: Detailed description of how Multimedia Telephony sessions are set-up and controlled Analysis showing the capacity and quality of VoIP and Multimedia Telephony in cellular networks Coverage of other IMS services such as PoC specified by 3GPP and OMA Description of suitable QoS and radio bearers for Multimedia Telephony Explanation of the modern radio interface, especially High Speed Packet Access, which is based on concepts such as link adaptation and fast hybrid ARQ The possibilities for the current and future standards covered in this book make it an indispensable resource for engineers, designers and researchers in VoIP, telecommunication companies and universities teaching and conducting research in telecommunications. It will also be of interest to managers needing an in-depth knowledge of the engineering and key issues of this complex technology, and students aspiring to develop a career in this area.

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