Internet Telephony

Internet Telephony PDF Author: Lee W. McKnight
Publisher: MIT Press
ISBN: 9780262133852
Category : Business & Economics
Languages : en
Pages : 428

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Book Description
This book explores issues posed by convergent voice and data networks, and considers future scenarios as Internet telephony continues to alter the communications landscape.

Internet Telephony

Internet Telephony PDF Author: Lee W. McKnight
Publisher: MIT Press
ISBN: 9780262133852
Category : Business & Economics
Languages : en
Pages : 428

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Book Description
This book explores issues posed by convergent voice and data networks, and considers future scenarios as Internet telephony continues to alter the communications landscape.

Telephony, the Internet, and the Media

Telephony, the Internet, and the Media PDF Author: Jeffrey K. MacKie-Mason
Publisher: Routledge
ISBN: 1136684263
Category : Language Arts & Disciplines
Languages : en
Pages : 324

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Book Description
Commemorating the 25th anniversary of the Telecommunications Policy Research Conference (TPRC), this volume begins with a historical survey of a quarter-century of TPRC meetings as one measure of change in and research about the telecommunications industry. Additional papers reflecting the ongoing pace of change in technological, economic, and policy issues are organized around four topics: * economic analysis of local and international telephone policy; * media industry studies including video competition, guidelines for children's educational television, and the setting of AM stereo standards; * applications and policy regarding the Internet; and * comparative studies in telephone and satellite policy. Collectively, the contents of this volume assess key issues for scholars, policymakers, and practitioners. Research reported in this volume illustrates the continually expanding scope of scholarly concerns about the telecommunications and information industry and contributes to further policy research and analysis.

Digital Telephony

Digital Telephony PDF Author: John Bellamy
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 554

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Book Description
An introduction to the new digital techniques of telephone communication networks, with emphasis on voice applications: voice digitization, digital transmission, digital switching, network synchronization, network control, and network analysis. Presents basic theory and stresses the application and operational aspects of communication systems design. Relates system level design considerations to telephone networks around the world, particularly in North America.

Media,Technology and Society

Media,Technology and Society PDF Author: Brian Winston
Publisher: Routledge
ISBN: 1134766335
Category : Social Science
Languages : en
Pages : 392

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Book Description
Challenging the popular myth of a present-day 'information revolution', Media Technology and Society is essential reading for anyone interested in the social impact of technological change. Winston argues that the development of new media forms, from the telegraph and the telephone to computers, satellite and virtual reality, is the product of a constant play-off between social necessity and suppression: the unwritten law by which new technologies are introduced into society only insofar as their disruptive potential is limited.

Mobile Technologies

Mobile Technologies PDF Author: Gerard Goggin
Publisher: Taylor & Francis
ISBN: 0415878438
Category : Cell phones
Languages : en
Pages : 313

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Book Description
Mobile Technologies charts the social, cultural, creative, and design aspects of mobiles as they are being incorporated into and changing the nature of media. It provides rigorous and timely analysis of the new area of mobile media and will be of interest to scholars, policy makers, industry, and general readers.

Conversation and Technology

Conversation and Technology PDF Author: Ian Hutchby
Publisher: John Wiley & Sons
ISBN: 0745667317
Category : Social Science
Languages : en
Pages : 227

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Book Description
We live in a world where social interaction is increasingly mediated by technological devices. In this book, Ian Hutchby explores the impact these technologies have on our attempts to communicate. Focusing on four examples - telephones, computerized expert systems at work, speech-based systems dealing with enquiries from the public, and multi-user spaces on the Internet - Hutchby asks: are we increasingly technologized conversationalists, or is technology increasingly conversationalized? Conversation and Technology draws on recent theory and empirical research in conversation analysis, ethnomethodology and the social construction of technology. In novel contributions to each of these areas, Hutchby argues that the ways in which we interact can be profoundly shaped by technological media, while at the same time we ourselves are shapers of both the cultural and interactional properties of these technologies. The book begins by examining a variety of theoretical perspectives on this issue. Hutchby offers a critical appraisal of recent sociological thinking, which has tended to over-estimate society's influence on technological development. Instead he calls for a new appreciation of the relationship between human communication and technology. Using a range of case studies to illustrate his argument, Hutchby explores the multiplicity of ways in which technology affects our ordinary conversational practices. Readers in areas as diverse as sociology, communication studies, psychology, computer science and management studies will find much of interest in this account of the human and communicative properties of various forms of modern communication technology.

VoIP and Unified Communications

VoIP and Unified Communications PDF Author: William A. Flanagan
Publisher: John Wiley & Sons
ISBN: 1118166035
Category : Technology & Engineering
Languages : en
Pages : 322

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Book Description
Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jargon-free explanations, the author enables all readers to better understand and assess the growing number of voice over Internet protocol (VoIP) and unified communications (UC) products and services that are available for businesses. VoIP and Unified Communications is based on the author's careful review and synthesis of more than 7,000 pages of published standards as well as a broad range of datasheets, websites, white papers, and webinars. It begins with an introduction to IP technology and then covers such topics as: Packet transmission and switching VoIP signaling and call processing How VoIP and UC are defining the future Interconnections with global services Network management for VoIP and UC This book features a complete chapter dedicated to cost analyses and payback calculations, enabling readers to accurately determine the short- and long-term financial impact of migrating to various VoIP and UC products and services. There's also a chapter detailing major IP systems hardware and software. Throughout the book, diagrams illustrate how various VoIP and UC components and systems work. In addition, the author highlights potential problems and threats to UC services, steering readers away from common pitfalls. Concise and to the point, this text enables readers—from novices to experienced engineers and technical managers—to understand how VoIP and UC really work so that everyone can confidently deal with network engineers, data center gurus, and top management.

Internet Communications Using SIP

Internet Communications Using SIP PDF Author: Henry Sinnreich
Publisher: John Wiley & Sons
ISBN: 111842915X
Category : Computers
Languages : en
Pages : 354

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Book Description
"This book is like a good tour guide.It doesn't just describe the major attractions; you share in the history, spirit, language, and culture of the place." --Henning Schulzrinne, Professor, Columbia University Since its birth in 1996, Session Initiation Protocol (SIP) has grown up. As a richer, much more robust technology, SIP today is fully capable of supporting the communication systems that power our twenty-first century work and life. This second edition handbook has been revamped to cover the newest standards, services, and products. You'll find the latest on SIP usage beyond VoIP, including Presence, instant messaging (IM), mobility, and emergency services, as well as peer-to-peer SIP applications, quality-of-service, and security issues--everything you need to build and deploy today's SIP services. This book will help you * Work with SIP in Presence and event-based communications * Handle SIP-based application-level mobility issues * Develop applications to facilitate communications access for users with disabilities * Set up Internet-based emergency services * Explore how peer-to-peer SIP systems may change VoIP * Understand the critical importance of Internet transparency * Identify relevant standards and specifications * Handle potential quality-of-service and security problems

Switching to VoIP

Switching to VoIP PDF Author: Theodore Wallingford
Publisher: "O'Reilly Media, Inc."
ISBN: 0596517297
Category : Computers
Languages : en
Pages : 504

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Book Description
More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of telecommunications by slashing costs and empowering users. The technology of families driving this convergence is called VoIP, or Voice over IP. VoIP has advanced Internet-based telephony to a viable solution, piquing the interest of companies small and large. The primary reason for migrating to VoIP is cost, as it equalizes the costs of long distance calls, local calls, and e-mails to fractions of a penny per use. But the real enterprise turn-on is how VoIP empowersbusinesses to mold and customize telecom and datacom solutions using a single, cohesive networking platform. These business drivers are so compelling that legacy telephony is going the way of the dinosaur, yielding to Voice over IP as the dominant enterprise communications paradigm. Developed from real-world experience by a senior developer, O'Reilly's Switching to VoIP provides solutions for the most common VoIP migration challenges. So if you're a network professional who is migrating from a traditional telephony system to a modern, feature-rich network, this book is a must-have. You'lldiscover the strengths and weaknesses of circuit-switched and packet-switched networks, how VoIP systems impact network infrastructure, as well as solutions for common challenges involved with IP voice migrations. Among the challenges discussed and projects presented: building a softPBX configuring IP phones ensuring quality of service scalability standards-compliance topological considerations coordinating a complete system ?switchover? migrating applications like voicemail and directoryservices retro-interfacing to traditional telephony supporting mobile users security and survivability dealing with the challenges of NAT To help you grasp the core principles at work, Switching to VoIP uses a combination of strategy and hands-on "how-to" that introduce VoIP routers and media gateways, various makes of IP telephone equipment, legacy analog phones, IPTables and Linux firewalls, and the Asterisk open source PBX software by Digium.You'll learn how to build an IP-based or legacy-compatible phone system and voicemail system complete with e-mail integration while becoming familiar with VoIP protocols and devices. Switching to VoIP remains vendor-neutral and advocates standards, not brands. Some of the standards explored include: SIP H.323, SCCP, and IAX Voice codecs 802.3af Type of Service, IP precedence, DiffServ, and RSVP 802.1a/b/g WLAN If VoIP has your attention, like so many others, then Switching to VoIP will help you build your own system, install it, and begin making calls. It's the only thing left between you and a modern telecom network.

Telecommunications Law in the Internet Age

Telecommunications Law in the Internet Age PDF Author: Sharon K. Black
Publisher: Elsevier
ISBN: 9780080518688
Category : Computers
Languages : en
Pages : 516

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Book Description
For companies in and around the telecommunications field, the past few years have been a time of extraordinary change-technologically and legally. The enacting of the Telecommunications Act of 1996 and the development of international trade agreements have fundamentally changed the environment in which your business operates, creating risks, responsibilities, and opportunities that were not there before. Until now, you'd have had a hard time finding a serious business book that offered any more than a cursory glance at this transformed world. But at last there's a resource you can depend on for in-depth analysis and sound advice. Written in easy-to-understand language, Telecommunications Law in the Internet Age systematically examines the complex interrelationships of new laws, new technologies, and new business practices, and equips you with the practical understanding you need to run your enterprise optimally within today's legal boundaries. * Offers authoritative coverage from a lawyer and telecommunications authority who has been working in the field for over three decades. * Examines telecommunications law in the U.S., at both the federal and state level. * Presents an unparalleled source of information on international trade regulations and their effects on the industry. * Covers the modern telecommunications issues with which most companies are grappling: wireless communication, e-commerce, satellite systems, privacy and encryption, Internet taxation, export controls, intellectual property, spamming, pornography, Internet telephony, extranets, and more. * Provides guidelines for preventing inadvertent violations of telecommunications law. * Offers guidance on fending off legal and illegal attacks by hackers, competitors, and foreign governments. * Helps you do more than understand and obey the law: helps you thrive within it.