Angebote zu "Techniques" (12 Treffer)

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Voice over IP Security
49,00 € *
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Voice over IP telephony is gaining popularity quickly, and is often replacing traditional PSTN connectivity due to its low cost and easy implementation. In moving from a legacy PSTN system to a newer technology such as VoIP, security is often overlooked by vendors and users. This can present a significant problem in the corporate environment, where security in terms of both privacy and service is a key requirement. For residential users, credential theft can result in a significant annoyance, such as toll fraud or identity theft. This book focuses on attacks that compromise privacy, and details methods of detecting and mitigating these attacks. IPSec is used to ensure that signalling and media traffic are unable to be intercepted. These techniques should help administrators of networks carrying voice traffic to implement necessary measures to ensure that security and privacy remain intact. They should be particularly useful in corporate environments, where sensitive information needs to remain inaccessible to anyone other than its intended recipients.

Anbieter: Dodax
Stand: 23.01.2020
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Seven Deadliest Unified Communications Attacks
22,67 € *
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Seven Deadliest Unified Communications Attacks provides a comprehensive coverage of the seven most dangerous hacks and exploits specific to Unified Communications (UC) and lays out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable.The book describes the intersection of the various communication technologies that make up UC, including Voice over IP (VoIP), instant message (IM), and other collaboration technologies. There are seven chapters that focus on the following: attacks against the UC ecosystem and UC endpoints, eavesdropping and modification attacks, control channel attacks, attacks on Session Initiation Protocol (SIP) trunks and public switched telephone network (PSTN) interconnection, attacks on identity, and attacks against distributed systems. Each chapter begins with an introduction to the threat along with some examples of the problem. This is followed by discussions of the anatomy, dangers, and future outlook of the threat as well as specific strategies on how to defend systems against the threat. The discussions of each threat are also organized around the themes of confidentiality, integrity, and availability.This book will be of interest to information security professionals of all levels as well as recreational hackers.Knowledge is power, find out about the most dominant attacks currently waging war on computers and networks globallyDiscover the best ways to defend against these vicious attacks, step-by-step instruction shows you howInstitute countermeasures, don't be caught defenseless again, and learn techniques to make your computer and network impenetrable

Anbieter: Dodax
Stand: 23.01.2020
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Seven Deadliest Unified Communications Attacks
22,46 € *
ggf. zzgl. Versand

Seven Deadliest Unified Communications Attacks provides a comprehensive coverage of the seven most dangerous hacks and exploits specific to Unified Communications (UC) and lays out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable.The book describes the intersection of the various communication technologies that make up UC, including Voice over IP (VoIP), instant message (IM), and other collaboration technologies. There are seven chapters that focus on the following: attacks against the UC ecosystem and UC endpoints, eavesdropping and modification attacks, control channel attacks, attacks on Session Initiation Protocol (SIP) trunks and public switched telephone network (PSTN) interconnection, attacks on identity, and attacks against distributed systems. Each chapter begins with an introduction to the threat along with some examples of the problem. This is followed by discussions of the anatomy, dangers, and future outlook of the threat as well as specific strategies on how to defend systems against the threat. The discussions of each threat are also organized around the themes of confidentiality, integrity, and availability.This book will be of interest to information security professionals of all levels as well as recreational hackers.Knowledge is power, find out about the most dominant attacks currently waging war on computers and networks globallyDiscover the best ways to defend against these vicious attacks, step-by-step instruction shows you howInstitute countermeasures, don't be caught defenseless again, and learn techniques to make your computer and network impenetrable

Anbieter: Dodax AT
Stand: 23.01.2020
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The Cable and Telecommunications Professionals'...
76,49 € *
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The Cable and Telecommunications Professionals' Reference ab 76.49 € als epub eBook: PSTN IP and Cellular Networks and Mathematical Techniques. 3. Auflage. Aus dem Bereich: eBooks, Belletristik, Erzählungen,

Anbieter: hugendubel
Stand: 23.01.2020
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The Cable and Telecommunications Professionals'...
76,49 € *
ggf. zzgl. Versand

The Cable and Telecommunications Professionals' Reference ab 76.49 EURO PSTN IP and Cellular Networks and Mathematical Techniques. 3. Auflage

Anbieter: ebook.de
Stand: 23.01.2020
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VoIP Voice and Fax Signal Processing
239,00 CHF *
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A complete and systematic treatment of signal processing for VoIP voice and fax This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers: * Voice compression * Packet loss concealment techniques * DTMF detection, generation, and rejection * Wideband voice modules operation * VoIP Voice-Network bit rate calculations * VoIP voice testing * Fax over IP and modem over IP * Country deviations of PSTN mapped to VoIP * VoIP on different processors and architectures * Generic VAD-CNG for waveform codecs * Echo cancellation * Caller ID features in VoIP * Packetization--RTP, RTCP, and jitter buffer * Clock sources for VoIP applications * Fax operation on PSTN, modulations, and fax messages * Fax over IP payload formats and bit rate calculations * Voice packets jitter with large data packets * VoIP voice quality Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.

Anbieter: Orell Fuessli CH
Stand: 23.01.2020
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Radio System Design for Telecommunication
339,00 CHF *
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Step-by-step tutorial to master current design techniques for wireless communication systems The Third Edition of Radio System Design for Telecommunications brings this highly acclaimed book fully up to date with the latest technological advances and new applications. At the same time, the hallmarks of the previous editions, including the text's popular tutorial presentation, have been retained. Readers therefore get all the tools and guidance they need to master an essential set of current design techniques for radio systems that operate at frequencies of 3 MHz to 100 GHz. Using simple mathematics, the author illustrates design concepts and applications. The book's logical organization, beginning with a discussion of radio propagation problems, enables readers to progressively develop the skills and knowledge needed to advance in the text. Topics that are new to the Third Edition include: * Chapter devoted to wireless LANs (WLANs) as detailed in IEEE 802.11 * Subsections covering IEEE 802.15, 802.16, 802.20, and the wireless metropolitan area network (WMAN) * WiFi, WiMax, and UWB applications that have recently experienced explosive growth * Broadband radio in telecommunications * The use of very small aperture satellite terminal (VSAT) systems as an economical alternative to public switched telecommunication networks (PSTN) Review questions and problems at the end of each chapter engage readers' newfound skills and knowledge and help them assess whether they are ready to progress to the next chapter. References are provided for readers who want to investigate particular topics in greater depth. Students in wireless telecommunications will find the book's tutorial style ideal for learning all the ins and outs of radio system design, whereas professionals in the industry will want to refer to the Third Edition for its clear explanations of the latest technology and applications.

Anbieter: Orell Fuessli CH
Stand: 23.01.2020
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VoIP Voice and Fax Signal Processing
130,00 CHF *
ggf. zzgl. Versand

A complete and systematic treatment of signal processing for VoIPvoice and fax This book presents a consolidated view and basic approach tosignal processing for VoIP voice and fax solutions. It providesreaders with complete coverage of the topic, from how things workin voice and fax modules, to signal processing aspects,implementation, and testing. Beginning with an overview of VoIPinfrastructure, interfaces, and signals, the book systematicallycovers: * Voice compression * Packet loss concealment techniques * DTMF detection, generation, and rejection * Wideband voice modules operation * VoIP Voice-Network bit rate calculations * VoIP voice testing * Fax over IP and modem over IP * Country deviations of PSTN mapped to VoIP * VoIP on different processors and architectures * Generic VAD-CNG for waveform codecs * Echo cancellation * Caller ID features in VoIP * Packetization--RTP, RTCP, and jitter buffer * Clock sources for VoIP applications * Fax operation on PSTN, modulations, and fax messages * Fax over IP payload formats and bit rate calculations * Voice packets jitter with large data packets * VoIP voice quality Over 100 questions and answers on voice and more than seventyquestions and answers on fax are provided at the back of the bookto reinforce the topics covered throughout the text. Additionally,several clarification, interpretation, and discussion sections areincluded in selected chapters to aide in readers'comprehension. VoIP Voice and Fax Signal Processing is an indispensableresource for professional electrical engineers, voice and faxsolution developers, product and deployment support teams, qualityassurance and test engineers, and computer engineers. It alsoserves as a valuable textbook for graduate-level students inelectrical engineering and computer engineering courses.

Anbieter: Orell Fuessli CH
Stand: 23.01.2020
Zum Angebot
VoIP Voice and Fax Signal Processing
187,99 € *
ggf. zzgl. Versand

A complete and systematic treatment of signal processing for VoIP voice and fax This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers: * Voice compression * Packet loss concealment techniques * DTMF detection, generation, and rejection * Wideband voice modules operation * VoIP Voice-Network bit rate calculations * VoIP voice testing * Fax over IP and modem over IP * Country deviations of PSTN mapped to VoIP * VoIP on different processors and architectures * Generic VAD-CNG for waveform codecs * Echo cancellation * Caller ID features in VoIP * Packetization--RTP, RTCP, and jitter buffer * Clock sources for VoIP applications * Fax operation on PSTN, modulations, and fax messages * Fax over IP payload formats and bit rate calculations * Voice packets jitter with large data packets * VoIP voice quality Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.

Anbieter: Thalia AT
Stand: 23.01.2020
Zum Angebot