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Understanding New Media

Author: Kim H. Veltman
Publisher: University of Calgary Press
ISBN: 1552381544
Size: 28.77 MB
Format: PDF, Kindle
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This book outlines the development currently underway in the technology of new media and looks further to examine the unforeseen effects of this phenomenon on our culture, our philosophies, and our spiritual outlook. The digital revolution is something fundamentally different from simply the introduction of yet another medium to our culture: it marks a paradigm shift in our relation to all media, to all our senses, all our expressions. The new media are transforming our definitions of culture and knowledge and transcending barriers in ways that will have lasting implications for generations to come.

Voip Service Quality

Author: William C. Hardy
Publisher: McGraw Hill Professional
ISBN: 0071429158
Size: 70.99 MB
Format: PDF, ePub
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VoIP (Voice over Internet Protocol), the next big advance in telecom, has proven difficult to implement. This resource gives service and enterprise telecom managers all the data they need on measurements, tools, and utilities to build a Voice over IP service that works as well as the telephone. * Offers specific techniques for evaluating every factor that affects quality of service * Written in an easy-to-understand "plain English" style * Explains how to translate problems of quality into measurable cause and effect


Author: Frank Ohrtman
Publisher: McGraw Hill Professional
ISBN: 0071501169
Size: 45.16 MB
Format: PDF, Mobi
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Bypassing the old circuit-switched hardware, softswitches streamline message traffic and provide a much more efficient service development environment. Along with SIP, this technology leverages Internet technologies to replace plain-old-telephone service. Developers who are freed up by softswitch technology to build cost-effective 3G serives will learn how it works and what applications it can support. Network managers making hard decisions about whether to deploy VoIP will learn pros and cons, costs and benefits, and most importantly how to separate myth from reality.

Broadband Wireless And Wimax

Author: International Engineering Consortium
Publisher: Intl. Engineering Consortiu
ISBN: 9781931695305
Size: 66.17 MB
Format: PDF, ePub, Mobi
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To remain competitive, service providers must develop a wireless strategy that coordinates offerings and networks between their wireline and wireless broadband infrastructures. Advances in fixed wireless broadband standards have enabled service providers to extend the reach and speed of their high-speed services. In addition, the deployment of mobile broadband solutions such as 3G is inaugurating a new era in communications. This report presents today's most viable broadband business models and market strategies, highlighting ways to retain customers while increasing profitability. Authored by professionals currently at work in the industry, this report offers a knowledgeable and in-depth examination of 802.16x (WiMAX) and 802.20; 802.11x (Wi-Fi) networks and WLANs; mobility, portability, and fixed services integration; and integrated wireless/wireline service offerings.

Packet Guide To Voice Over Ip

Author: Bruce Hartpence
Publisher: "O'Reilly Media, Inc."
ISBN: 1449339670
Size: 59.85 MB
Format: PDF, Mobi
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Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you’ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown. With packet captures available on the companion website, this book is ideal whether you’re an instructor, student, or professional looking to boost your skill set. Each chapter includes a set of review questions, as well as practical, hands-on lab exercises. Learn the requirements for deploying packetized voice and video Understand traditional telephony concepts, including local loop, tip and ring, and T carriers Explore the Session Initiation Protocol (SIP), VoIP’s primary signaling protocol Learn the operations and fields for VoIP’s standardized RTP and RTCP transport protocols Delve into voice and video codecs for converting analog data to digital format for transmission Get familiar with Communications Systems H.323, SIP’s widely used predecessor Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world

Carrier Ip Telephony 2000

Author: International Engineering Consortium
Publisher: Intl. Engineering Consortiu
ISBN: 9780933217751
Size: 16.82 MB
Format: PDF, Mobi
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Extensively examining IP telephony from the service provider's perspective, this book addresses the problems and possibilities associated with the future of telecom transport. Answering the crucial question How can established and emerging carriers leverage IP-telephony service?, this report presents a valuable compilation of the latest research and most provocative insight from a broad range of industry professionals. Here, service providers will find in-depth analysis of the issues that must be resolved before IP telephony can achieve carrier-class status.

Cryptography Demystified

Author: John Hershey
Publisher: McGraw Hill Professional
ISBN: 0071543155
Size: 21.52 MB
Format: PDF
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AN UNCONVENTIONAL, FUN WAY TO MASTER THE BASICS OF CRYPTOGRAPHY Cryptography is not just for specialists. Now every wireless message, wireless phone call, online transaction, and email is encrypted at one end and decrypted at the other. “Crypto” is part of the job description for network designers, network engineers, and telecom developers. If you need cryptography basics—but dread the thick tomes that are your only other option—help is at hand. Cryptography Demystified puts the fundamentals into a 35-module, learn-by-doing package that’s actually fun to use. You must read this book if— * You prefer your simplifications from an expert who understands the complexities * 6 years of success as a short course for students and professionals works for you * you enjoy hearing the phrase “nothing to memorize” * ecommerce, email, network security, or wireless communications is part of your bailiwick * cracking cryptography means a jump up the career ladder * the words “public-key cryptography,” “channel-based cryptography,” and “prime numbers” pique your interest * best-practices cryptography is the only secure way for you—and your company—to go One of the most complex subjects in Information Technology, cryptography gets its due in this down-to-earth, self-teaching tutorial—the first to make the basics of the science truly accessible.

Cwsp Certified Wireless Security Professional Official Study Guide Second Edition

Author: Certitrek Publishing
Publisher: Certitrek Publishing
ISBN: 099716073X
Size: 65.10 MB
Format: PDF, Docs
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CWSP® Certified Wireless Security Professional Official Study Guide- Second Edition: The Certified Wireless Security Professional (CWSP®) exam (CWSP-205) proves your knowledge of 802.11 wireless LAN security solutions. This study guide provides you with the knowledge you need to prepare for the exam and grasp security concepts required to implement, manage, and troubleshoot secure wireless networks. You will learn about wireless security basics, security issues with 802.11 networks, details of authentication and encryption, and more. The CWSP Study Guide includes: Full coverage of exam CWSP-205 objectives so that you can feel and be prepared on exam day. Sidebars covering important topics Beyond the Exam. In-the-field case studies revealing how security works in the real world. Hands-on exercises you can perform on your own to master security concepts. Several white papers from CWNP included in the appendix related to security.

Sip Understanding The Session Initiation Protocol Fourth Edition

Author: Alan B. Johnston
Publisher: Artech House
ISBN: 1608078647
Size: 55.26 MB
Format: PDF, ePub
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Now in its fourth edition, the ground-breaking Artech House bestseller SIP: Understanding the Session Initiation Protocol offers you the most comprehensive and current understanding of this revolutionary protocol for call signaling and IP Telephony. The fourth edition incorporates changes in SIP from the last five years with new chapters on internet threats and attacks, WebRTC and SIP, and substantial updates throughout. This cutting-edge book shows how SIP provides a highly-scalable and cost-effective way to offer new and exciting telecommunication feature sets, helping practitioners design “next generation” network and develop new applications and software stacks. Other key discussions include SIP as a key component in the Internet multimedia conferencing architecture, request and response messages, devices in a typical network, types of servers, SIP headers, comparisons with existing signaling protocols including H.323, related protocols SDP (Session Description Protocol) and RTP (Real-time Transport Protocol), and the future direction of SIP.