Ip Telephony: Packet-Based Multimedia Communications Systems

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9780201619102: Ip Telephony: Packet-Based Multimedia Communications Systems
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This book provides a comprehensive practical overview of the technology behind Internet Telephony, giving essential information to IT professionals who need to understand the background and explore the issues involved in migrating the existing telephony infrastructure to an IP based real time communication service. Assuming a working knowledge of IP and ISDN networking, it addresses the technical aspects of real-time applications over IP, with an in-depth coverage of voice and video applications and protocols. Drawing on their extensive research and practical development experience in VoIP from its earliest stages, the authors give you access to all the relevant standards and cutting-edge techniques in a single resource.

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L'autore:

The author is an experienced professional working for CNET/FranceTelecom, where he has been one of the pioneers of the technology, and has been involved with one of the first commercial implementations of an IP Telephony. He also sits on the Voice over IP standards bodies.

Dalla quarta di copertina:

I recommend this book to all VoIP engineers, analysts, and IT managers who really want to know what they are talking about on the net, enjoy!"
-Jeff Pulver, founder of the VON (Voice On the Net) coalition, and the founder and president of pulver.com

Internet Telephony is now one of the most important and fastest growing technologies on the Internet, providing a viable technical and economical alternative to current telecommunication networks. Network providers and major companies are thus investigating how this emerging technology can be implemented, and at what cost and savings, in their organizations.

This book provides a comprehensive practical overview of the technology behind Internet Telephony, giving essential information to IT professionals who need to understand the background and explore the issues involved in migrating the existing telephony infrastructure to an IP based real time communication service. Assuming a working knowledge of IP and ISDN networking, it addresses the technical aspects of real-time applications over IP, with an in-depth coverage of voice and video applications and protocols. Drawing on their extensive research and practical development experience in VoIP from its earliest stages, the authors give you access to all the relevant standards and cutting-edge techniques in a single resource.

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, including the ETSI TIPHON approach, and voice coding, with summary comments on the applicability to VoIP telephone gateways. The final section on networks addresses Quality of Service (QoS) issues, explores dimensioning a VoIP network, and introduces Multicast routing, including a perspective on security and MBONE applications.

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Hersent, Olivier; Gurle, David; Petit, Jean-Pierre
ISBN 10: 0201619105 ISBN 13: 9780201619102
Nuovo Quantità: 1
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BennettBooksLtd
(San Diego, CA, U.S.A.)
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Descrizione libro Condizione: New. New. Codice articolo M-0201619105

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