This book de-mystifies the technology behind video conferencing and provides single users and small enterprises with the information they need to deploy video conferencing efficiently and cost effectively. For many years, the promise of high quality, low cost video conferencing has been an attractive solution for businesses interested in cutting travel costs while maintaining the benefits of face-to-face contact. Unfortunately, most solutions never lived up to the promise, due primarily to lack of internet bandwidth and poorly developed protocols. That's no all changed. The capacity has been created, the hardware works, and businesses are more eager than ever to cut down on travel costs. * Budget conscious methods for deploying Video over IP in small to medium enterprises * Coverage of Cisco, Microsoft, Skype, AOL, Google, VidiTel and many other products * How to identify and resolve nagging quality of service issues such as transmission delays and out of synch video-to-voice feeds
Science has been a major contributor to the health and wealth we enjoy today, but not everyone is happy about it. Science can get in the way of social and environmental activists, politicians, lawyers, and government regulators who have a political agenda they wish to impose. This book is a tongue-in-cheek "how-to" manual for concerned citizens who are annoyed by "pesky" science. The authors describe more than 20 efforts of individuals and organizations to stop science in its tracks using techniques ranging from defunding scientific research to quashing scientific debate. Their witty descriptions illuminate the mischief that has followed successful and all-too-real efforts to substitute "junk" science for the real thing.
The Perfect Reference for the Multitasked SysAdmin This is the perfect guide if VoIP engineering is not your specialty. It is the perfect introduction to VoIP security, covering exploit tools and how they can be used against VoIP (Voice over IP) systems. It gives the basics of attack methodologies used against the SIP and H.323 protocols as well as VoIP network infrastructure. * VoIP Isn’t Just Another Data Protocol IP telephony uses the Internet architecture, similar to any other data application. However, from a security administrator’s point of view, VoIP is different. Understand why. * What Functionality Is Gained, Degraded, or Enhanced on a VoIP Network? Find out the issues associated with quality of service, emergency 911 service, and the major benefits of VoIP. * The Security Considerations of Voice Messaging Learn about the types of security attacks you need to protect against within your voice messaging system. * Understand the VoIP Communication Architectures Understand what PSTN is and what it does as well as the H.323 protocol specification, and SIP Functions and features. * The Support Protocols of VoIP Environments Learn the services, features, and security implications of DNS, TFTP, HTTP, SNMP, DHCP, RSVP, SDP, and SKINNY. * Securing the Whole VoIP Infrastructure Learn about Denial-of-Service attacks, VoIP service disruption, call hijacking and interception, H.323-specific attacks, and SIP-specific attacks. * Authorized Access Begins with Authentication Learn the methods of verifying both the user identity and the device identity in order to secure a VoIP network. * Understand Skype Security Skype does not log a history like other VoIP solutions; understand the implications of conducting business over a Skype connection. * Get the Basics of a VoIP Security Policy Use a sample VoIP Security Policy to understand the components of a complete policy. Provides system administrators with hundreds of tips, tricks, and scripts to complete administration tasks more quickly and efficiently Short on theory, history, and technical data that ultimately is not helpful in performing their jobs Avoid the time drains associated with securing VoIP
Provides information on the technology behind Internet videoconferencing, covering such topics as broadband Internet connections, video telephone options, and video call software.
Three years after American raceplanes failed dismally in the most important air race of 1920, a French magazine lamented that American "pilots have broken the records which we, here in France, considered as our own for so long." The Pulitzer Trophy Air Races (1920 through 1925), endowed by the sons of publisher Joseph Pulitzer in his memory, brought about this remarkable turnaround. Pulitzer winning speeds increased from 157 to 249 mph, and Pulitzer racers, mounted on floats, twice won the most prestigious international air race--the Schneider Trophy Race for seaplanes. Airplanes, engines, propellers, and other equipment developed for the Pulitzers were sold domestically and internationally. More than a million spectators saw the Pulitzers; millions more read about them and watched them in newsreels. This, the first book about the Pulitzers, tells the story of businessmen, generals and admirals who saw racing as a way to drive aviation progress, designers and manufacturers who produced record-breaking racers, and dashing pilots who gave the races their public face. It emphasizes the roles played by the communities that hosted the races--Garden City (Long Island), Omaha, Detroit and Mt. Clemens, Michigan, St. Louis, and Dayton. The book concludes with an analysis of the Pulitzers' importance and why they have languished in obscurity for so long.
Developed for use as a reference work in graduate and undergraduate courses as well as for researchers, policymakers, and interested laypersons, the book is a unique collection of authoritative yet accessible journal articles about risk. Drawn from a variety of disciplines including the physical and social sciences, engineering, and law, the articles deal with a wide range of public policy, regulatory, management, energy, and environmental issues. The selections are accompanied by introductory notes, questions for thought and discussion, and suggestions for further reading.
This book is divided into four parts. Part I begins with several chapters on the basics of Skype. Here the reader learns how to install and configure Skype on several platforms including Windows, Max OSX, Linux, and PocketPC. The reader will also learn how to begin making voice over IP calls immediately. Part II deals with the more advanced features of Skype. Here the reader learns how to use Skype on new “Skype Ready cell phones, use Skype for more advanced, business-oriented tasks such as scheduling and file transfers, as well as using SkypeOut. Part III discusses how to integrate Skype with third party networking, communication, and security devices such as routers, firewalls, and mail servers, as well as using the brand new Skype for Business. Part IV covers the Skype Application Programming Interface, Plug-ins, Add-ons, and third party tools. Here the reader learns to develop and customize their own applications using the new, powerful, Skype API. * Skype has over 70,000,0000 users worldwide, and 13 forums with over 25,000 members * Skype's Application Programming Interface (API) allows users to develop their own applications and customize Skype with the information found in this book * Makrus Daehne is one of the most recognized and respected authorities on Skype and he is the forum moderator on the Skype Web site
In this book leading scientists share their experiences and observations of developing and testing hypotheses, offering insights on the dangers of manipulating science for political gain. It describes how politicization--whether by misapplication, overextension, or outright manipulation of the scientific record to advance particular policy agendas--imposes expenditures of money, missed opportunities, and burdens on the economy.
`Introducing Social Geographies' is a major new text offering a comprehensive and up-to-date introduction to this important area of human geography. It presents a broad overview of social geography, clearly outlining the key theoretical and political positions, and making extensive use of examples to show how these frameworks can be used to analyse real social issues. The book is ideal for undergraduates first encountering social geography and includes topic overviews, summaries of key points, critiques, boxed case studies and suggestions for further reading.
On the night of its premiere, Smallville broke the record for the most-watched pilot ever on the WB network. Now, in the Smallville book series, fans can go beyond the TV show to join young, legendary Clark Kent, Lana Lang, and Lex Luthor as they set out on original adventures.
This book de-mystifies the technology behind video conferencing and provides single users and small enterprises with the information they need to deploy video conferencing efficiently and cost effectively. For many years, the promise of high quality, low cost video conferencing has been an attractive solution for businesses interested in cutting travel costs while maintaining the benefits of face-to-face contact. Unfortunately, most solutions never lived up to the promise, due primarily to lack of internet bandwidth and poorly developed protocols. That's no all changed. The capacity has been created, the hardware works, and businesses are more eager than ever to cut down on travel costs. * Budget conscious methods for deploying Video over IP in small to medium enterprises * Coverage of Cisco, Microsoft, Skype, AOL, Google, VidiTel and many other products * How to identify and resolve nagging quality of service issues such as transmission delays and out of synch video-to-voice feeds
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