Feeling hamstrung by your new Samsung? Figure out how to navigate your new phone in no time Your Samsung Galaxy comes packed with features you'll use every day, and Samsung Galaxy S21 For Dummies is your guide to exploring them. What do you want to do first? Send a text or email? Take photos and videos? Make a basic call? Play games? Shop? This handy guide can help you do all that and so much more. Get an overview of the buttons, screens, and apps that are essential to operating your new phone Manage your contacts so you can stay connected with calls, emails, or texts Surf the web and find new games and apps in the Google Play Store Customize your phone with ringtones, wallpaper, and awesome accessories Watch videos and movies, shoot your own videos, and take photos Boost your productivity with calendar, GPS, and productivity apps Secure your Samsung Galaxy with your face ID, thumbprint, and Screen Lock Not only does Samsung Galaxy S21 For Dummies describe features and walk you through steps to use your new phone, it also shows you what the screens look like and where to tap to make things happen. It's like having a Samsung expert at your elbow. So pick up your copy today to make the most of your Samsung smartphone.

This brief surveys existing techniques to address the problem of long delays and high power consumption for web browsing on smartphones, which can be due to the local computational limitation at the smartphone (e.g., running java scripts or flash objects) level. To address this issue, an architecture called Virtual-Machine based Proxy (VMP) is introduced, shifting the computing from smartphones to the VMP which may reside in the cloud. Mobile Web Browsing Using the Cloud illustrates the feasibility of deploying the proposed VMP system in 3G networks through a prototype using Xen virtual machines (in cloud) and Android Phones with ATT UMTS network. Techniques to address scalability issues, resource management techniques to optimize the performance of the VMs on the proxy side, compression techniques to further reduce the bandwidth consumption, and adaptation techniques to address poor network conditions on the smartphone are also included.

An all-encompassing coverage on UMTS Networks including an in-depth discussion of current work on UMTS evolution and 4G .

"UMTS Networks and Beyond" offers a comprehensive introduction to the networking aspects of UMTS and the networks coming after UMTS. The book is unique in that it systematically compares how a particular problem, e.g. obtaining connectivity, is solved in UMTS and how the same problem is solved in a Computer Network such as the Internet. It also highlights why the respective solutions are so different.

The first part of the book provides a detailed technical discussion of UMTS, including original vision, architecture, protocol stacks and overall functionality. It places UMTS in the context of its evolution of from GSM and its convergence with Computer Networks. The second part of the book discusses today's vision of 4G, and introduces upcoming networking technologies. Emphasis is on LTE / SAE as successor of UMTS; UMB, WiMAX and NGN are also discussed. The book gives an overview of what these technologies are likely to offer, of their architectures, protocols and functionality. It also discusses their differences and similarities, and whether they will qualify as 4G.

Key Features: Provides readers, particularly those with a background in IP-based networks, with a technical understanding of what UMTS does, how it works and how it is likely to evolveExplains the differences in design between UMTS Networks and Computer Networks and discusses how these design divergences can be reconciled in the futureShows how economic considerations shape the design of UMTSMotivates why particular design choices are made in UMTSGives an in-depth introduction to LTE / SAEProvides a detailed picture of the state of the art in 4GIllustrates the theory with numerous tables and figures

This comprehensive textbook is essential reading for advanced students and lecturers in communications systems and networking. It is also of interest to engineers and researchers in the field of UMTS and communications systems.

The iPhone represents an important moment in both the short history of mobile media and the long history of cultural technologies. Like the Walkman of the 1980s, it marks a juncture in which notions about identity, individualism, lifestyle and sociality require rearticulation. this book explores not only the iPhone's particular characteristics, uses and "affects," but also how the "iPhone moment" functions as a barometer for broader patterns of change. In the iPhone moment, this study considers the convergent trajectories in the evolution of digital and mobile culture, and their implications for future scholarship. Through the lens of the iPhone-as a symbol, culture and a set of material practices around contemporary convergent mobile media-the essays collected here explore the most productive theoretical and methodological approaches for grasping media practice, consumer culture and networked communication in the twenty-first century.

Design and development of a cost-effective mobile broadband wireless access network is a key challenge for many mobile network operators. Overdimensioning or underdimensioning of the access network results in additional costs and a reduction of the customer satisfaction, respectively. Thushara Weerawardane introduces new transport technologies and features for High Speed Packet Access (HSPA) and Long-Term Evolution (LTE) networks. He proposes novel adaptive flow control and enhanced congestion control algorithms and develops corresponding analytical models. These models are based on Markov chains and can be performed for faster analysis evaluation compared to long lasting detailed simulations. Both simulation and analytical models provide optimum network performance and reliable guaranteed quality of standard for the end users during congestion in the transport network. Further, the author investigates and analyzes the LTE transport network performance by introducing novel traffic differentiation models and buffer management techniques during intra-LTE handovers.

Ready to create your own iPhone app? This book walks you through the entire iPhone app development process, from start to finish. You'll learn how to download the tools, build the app, get it through Apple's approval process, and then market and maintain the finished product. All you need to get started is a familiarity with object-oriented programming. With "iPhone App Development: The Missing Manual", you'll get lots of illustrations, step-by-step tutorials, and real-world examples. Author and Mac guru Craig Hockenberry is your ideal guide because he's been there, having created the wildly popular Twitterific iPhone app that lets you manage your tweets and Twitter account right on your iPhone screen. Craig's goal is to make you a successful iPhone App developer, whether you're a student or an experienced programmer. He pursues this goal with clarity and a terrific sense of humor.

Mobile phones are no longer what they used to be. Not only can users connect to the Internet anywhere and anytime, they can also use their devices to map their precise geographic coordinates and access location-specific information like restaurant reviews, historical information, and locations of other people nearby. The proliferation of location-aware mobile technologies calls for a new understanding of how we define public spaces, how we deal with locational privacy, and how networks of power are developed today.

In Mobile Interfaces in Public Spaces, Adriana de Souza E. Silva and Jordan Frith examine these social and spatial changes by framing the development of location-aware technology within the context of other mobile and portable technologies such as the book, the Walkman, the iPod, and the mobile phone. These technologies work as interfaces to public spaces that is, as symbolic systems that not only filter information but also reshape communication relationships and the environment in which social interaction takes place. Yet rather than detaching people from their surroundings, the authors suggest that location-aware technologies may ultimately strengthen our connections to locations.

This international, interdisciplinary collection explores a range of possible theoretical and empirical approaches to cultural technologies and mobile communication by treating the iPhone as a case study. As the mobile phone graduates into a fully web-capable and multi-media device, the contributors to this volume critically examine the nature and implications of this shift, considering the iPhone as a significant moment in media history.

With the emergence of networked, convergent mobile media devices like the iPhone, new media and communication practices are emerging. Increasingly, the mobile phone is becoming a platform for gaming, online social networking and emergent lifestyle applications. The iPhone is symbolic of this phenomenon, but it also has its own distinctive features (in terms of branding and use), and so provides media and communication theorists with a unique opportunity to explore these practices. Indeed, the iPhone--as part of broader shifts toward ubiquitous, convergent mobile devices and "smartphones"--can be usefully deployed as a case study enabling new insights into mobile media culture.

This innovative book sets forth two promising wireless approaches that support high-quality, high-speed data and multimedia service-multiple antenna technologies and cross layer transmitter adaptation designs-while highlighting the relationships and interactions between them. The latest advanced technologies of channel adaptation techniques for wireless communication systems with multiple antennas are thoroughly investigated.
The book is divided into three parts, first giving readers a good foundation in underlying theory, then exploring applications as well as advanced topics:
* Part 1 examines theoretical aspects of channel adaptation in wireless communications for point-to-point and multi-user systems with multiple antennas
* Part 2 focuses on the applications of the channel-adaptive technologies in practical systems such as UMTS
* Part 3 delves into topics such as multi-user scheduling for wideband systems, combined queuing theory and information theory, and ad hoc routing
Using a hands-on, practical approach, Channel Adaptive Technologies and Cross Layer Designs for Wireless Systems with Multiple Antennas thoroughly covers detailed design considerations that help readers understand how to apply theory to real-world systems. Emphasis throughout the book is on joint optimization across different layers of a communications system based on an integrated approach. Examples of popular wireless systems, such as TDMA, wideband CDMA (UMTS), and HSDPA, are used throughout as practical illustrations. Each chapter ends with a summary that reviews key points and a set of problems that lets readers test their knowledge and continue to develop their skills as they progress to new topics. Figures and tables are also used extensively to help readers visualize complex theory and systems.
Combining theory, design, and application into one integrated approach, this is a superior reference for advanced communications theory courses.

AAA (Authentication, Authorization, Accounting) describes a framework for intelligently controlling access to network resources, enforcing policies, and providing the information necessary to bill for services.

"AAA and Network Security for Mobile Access" is an invaluable guide to the AAA concepts and framework, including its protocols Diameter and Radius. The authors give an overview of established and emerging standards for the provision of secure network access for mobile users while providing the basic design concepts and motivations.

"AAA and Network Security for Mobile Access: " Covers trust, i.e., authentication and security key management for fixed and mobile users, and various approaches to trust establishment. Discusses public key infrastructures and provides practical tips on certificates management. Introduces Diameter, a state-of-the-art AAA protocol designed to meet today's reliability, security and robustness requirements, and examines Diameter-Mobile IP interactions. Explains RADIUS (Remote Authentication Dial-In User Services) and its latest extensions. Details EAP (Extensible Authentication Protocol) in-depth, giving a protocol overview, and covering EAP-XXX authentication methods as well as use of EAP in 802 networks. Describes IP mobility protocols including IP level mobility management, its security and optimizations, and latest IETF seamless mobility protocols. Includes a chapter describing the details of Mobile IP and AAA interaction, illustrating Diameter Mobile IP applications and the process used in CDMA2000. Contains a section on security and AAA issues to support roaming, discussing a variety of options for operator co-existence, including an overviewof Liberty Alliance.

This text will provide researchers in academia and industry, network security engineers, managers, developers and planners, as well as graduate students, with an accessible explanation of the standards fundamental to secure mobile access.

The iPhone is the hottest gadget of our generation, and much of its success has been fueled by the App Store, Apple's online marketplace for iPhone applications. Over 1 billion apps have been downloaded in the 9 months the App Store has been open, ranging from the simplest games to the most complex business apps. Everyone has an idea for the next best-selling iPhone apppresumably that's why you're reading this now. And with the release of the iPad, this demand will just continue to grow.

So how do you build an application for the iPhone and iPad? Don't you need to spend years learning complicated programming languages? What about Objective-C, Cocoa Touch, and the software development kit (SDK)? The answer is that you don't need to know any of those things. Anybody can start building simple applications for the iPhone and iPad, and this book will show you how.

This book takes you to getting your first applications up and running using plain English and practical examples. It cuts through the fog of jargon and misinformation that surrounds iPhone and iPad application development, and gives you simple, step-by-step instructions to get you started.Teaches iPhone and iPad application development in language anyone can understand Provides simple, step-by-step examples that make learning easy Offers videos that enable you to follow along with the authorit's like your own private classroom What you'll learn Get both yourself and your computer set up for iPhone and iPad application development. Start by making small changes to existing applications to build your knowledge and experience before creating your own applications. Follow steps in plain English to build simple apps and get them working immediately. Style your application so that it looks good and users can easily navigate through it. Make use of the iPhone's touch screen and accelerometer. Use shortcuts and cheat sheets to create apps the easy way. Who this book is for

If you have a great idea for an iPhone or iPad app, but have never programmed before, then this book is for you. You don't need to have any previous computer programming skills--as long as you have a desire to learn, and you know which end of the mouse is which, you'll be fine. Table of Contents Before We Get Started Blast-Off What's Next? An Introduction to the Code Buttons & Labels with Multiple Graphics Switch View with Multiple Graphics Dragging, Rotating, and Scaling Table Views, Navigation, and Arrays MapKit

The upcoming 5G specifications from 3GPP, to be available in 2018, will include LTE-Advanced Pro as well as a new 5G radio-access technology. This practical and very successful book, written by engineers working closely with 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in LTE, LTE-Advanced, and LTE-Advanced Pro, as well as providing a detailed description of the path to 5G and the associated underlying technologies. This edition has been thoroughly revised and updated to reflect the large extensions to LTE as introduced in 3GPP Releases 12 and 13 and the role of LTE in the upcoming 5G era. New to this edition includes updated content on: 4G and 5G Radio Access Spectrum for 4G and 5G Machine-Type Communication Device-to-Device Communication License-assisted Access Full-dimension MIMO Small-cell enhancements, eIMTA, FDD+TDD aggregation, dual connectivity Requirements on and general structure of 5G wireless access, addressing the existing and new usage scenarios for 5G Technical solutions for the new 5G radio-access technology The authors of this book all work at Ericsson Research and have been deeply involved in 3G and 4G development and standardization. They are leading experts in the field and are today actively contributing to the standardization of 4G and 5G within 3GPP.

The widespread availability of mobile devices along with recent advancements in networking capabilities make opportunistic mobile social networks (MSNs) one of the most promising technologies for next-generation mobile applications. Opportunistic Mobile Social Networks supplies a new perspective of these networks that can help you enhance spontaneous interaction and communication among users that opportunistically encounter each other, without additional infrastructure support. The book explores recent developments in the theoretical, algorithmic, and application-based aspects of opportunistic MSNs. It presents the motivation behind opportunistic MSNs, describes their underpinning and key concepts, and also explores ongoing research. Supplies a systematic study of the constrained information flow problem Reviews the recent literature on social influence in complex social networks Presents a complete overview of the fundamental characteristics of link-level connectivity in opportunistic networks Explains how mobility and dynamic network structure impact the processing capacity of opportunistic MSNs for cloud applications Provides a comprehensive overview of the routing schemes proposed in opportunistic MSNs Taking an in-depth look at multicast protocols, the book explains how to provide pervasive data access to mobile users without the support of cellular or Internet infrastructures. Considering privacy and security issues, it surveys a collection of cutting-edge approaches for minimizing privacy leakage during opportunistic user profile exchange. The book concludes by introducing a framework for mobile peer rating using a multi-dimensional metric scheme based on encounter and location testing. It also explains how to develop a network emulation test bed for validating the efficient operation of opportunistic network applications and protocols in scenarios that

From the reviews of the Second Edition … "The book stresses how systems operate and the rationale behind their design, rather than presenting rigorous analytical formulations … [It provides] the practicality and breadth essential to mastering the concepts of modern communications systems." —Telecommunication Journal In this expanded new edition of his bestselling book, telephony expert John Bellamy continues to provide telecommunications engineers with practical, comprehensive coverage of all aspects of digital telephone systems, while addressing the rapid changes the field has seen in recent years. Bellamy discusses the near-complete conversion to digital technology in telephone networks worldwide, examines both existing and emerging technologies, and explores the intricacies of carrying voice over data networks as well as the use of telephone networks for carrying data for Internet access. He emphasizes system design, implementation, and application, but also correlates the practice to communications theory. With 30 percent new material, Digital Telephony, Third Edition features:

• Clear explanations on how to overcome problems associated with the replacement of old analog technology with new digital technology
• A new chapter on digital mobile telephone technology
• New material on how, data networks support voice communication
• A new chapter on digital subscriber access technologies
• More than 300 graphs illustrating concepts
• Examples from the U.S. network as well as ITU public telephone networks

On March 7, 1876, the U.S. Patent Office issued to a young inventor named Alexander Graham Bell what is arguably the most valuable patent ever: entitled "improvements in telegraphy," in truth it secured for Bell the basic principles involved in a telephone. On the same day that Bell filed his patent application, a caveat (a preliminary patent document) was filed by Elisha Gray. This coincidence sparked the first of many debates over whether Bell was the true inventor of the telephone. In the early 1860s Johann Phillipp Reis developed a version of the instrument, but his claims against Bell were hampered by the bungling of his lawyers in demonstrating his instrument in court. This work is a first look at the many men who developed the telephone and an examination of their claims against Bell's patent. A lay description of the phone is also provided, as well as a history of the development of the telephone system.

"This is an IEEE classic reissue of the book published by John Wiley & Sons in 1974. This definitive text and reference covers all aspects of microwave mobile systems design. Encompassing ten years of advanced research in the field, it reviews basic microwave theory, explains how cellular systems work and presents useful techniques for effective systems development. Key features include: complete coverage of microwave propagation techniques to design successful cellular systems, extensive chapters covering the broad fundamentals of microwave usage in mobile radio propagation and the functions of mobile radio antennas, comprehensive treatment of modulation methods, interference, noise, layout and control of high-capacity systems, and more! The return of this classic volume should be welcomed by all those seeking an authoritative and complete source of information on this emerging technology."

Globalization of Mobile and Wireless Communications is a collection of cutting-edge research in mobile and wireless communications with impact on developments as far forward as 2020 and beyond. The book draws upon the insights and performed research work of leading experts in the field. Topics of discussion are related but not limited to spectrum-efficient radio interface technologies, enabling technologies for reconfigurability, wireless sensor networks, cognitive networks, coherent wireless transmission, algorithmic design, middleware for novel services and applications. The material has been edited to provide a vision for the future of mobile and wireless, towards a dynamic communication system that breaks down the barriers between communications means; and evolves and integrates business models and culture to match the technological evolution. In addition, strategies on how to overcome the technological challenges for achieving that vision are also outlined.

With forewords by Jan Bosch, Nokia and Antero Taivalsaari, Sun Microsystems.

Learn how to programme the mobile devices of the future!

The importance of mobile systems programming has emerged over the recent years as a new domain in software development. The design of software that runs in a mobile device requires that developers combine the rules applicable in embedded environment; memory-awareness, limited performance, security, and limited resources with features that are needed in workstation environment; modifiability, run-time extensions, and rapid application development.

"Programming Mobile Devices" is a comprehensive, practical introduction to programming mobile systems. The book is a platform independent approach to programming mobile devices: it does not focus on specific technologies, and devices, instead it evaluates the component areas and issues that are common to all mobile software platforms. This text will enable the designer to programme mobile devices by mastering both hardware-aware and application-level software, as well as the main principles that guide their design.

"Programming Mobile Devices: " Provides a complete and authoritative overview of programming mobile systems. Discusses the major issues surrounding mobile systems programming; such as understanding of embedded systems and workstation programming. Covers memory management, the concepts of applications, dynamically linked libraries, concurrency, handling local resources, networking and mobile devices as well as security features. Uses generic examples from JavaTM and Symbian OS to illustrate the principles of mobile device programming.

"Programming Mobile Devices" is essential readingfor graduate and advanced undergraduate students, academic and industrial researchers in the field as well as software developers, and programmers.

The iPhone 11, 11 Pro, 11R, and 11Max are faster than ever and have more powerful cameras. With the latest edition of this bestselling guide, you get a funny, gorgeously illustrated guide to the tips, shortcuts, and workarounds that will turn you into an iPhone master. Written by David Pogue-Missing Manual series creator, New York Times columnist, and Emmy-winning tech correspondent for CNBC, CBS, and NPR-this update shows you everything you need to know about new iPhone features and the iOS 13 user interface. Pick up this beautiful full-color book and learn how to get the most out of your iPhone.

We think we know everything about our smartphones. We use them constantly. We depend on them for every conceivable purpose. We are familiar with every inch of their compact frames. But there is more to the smartphone than meets the eye.
How have smartphones shaped the way we socialize and interact? Who tracks our actions, our preferences, our movements as recorded by our smartphones? These are just some of the questions that journalist Elizabeth Woyke answers in this muckraking expose of the $241 billion industry that produces more than 700 million devices each year.
In the tradition of "The Coffee Book," "The Sneaker Book," "Oil," and "Cigarettes," "The Smartphone" offers not only a step-by-step guide to how smartphones are designed and manufactured but also a bold exploration of the darker side of this massive industry, including the exploitation of labor, the disposal of electronic waste, and the underground networks that hack and smuggle smartphones.
Featuring interviews with key figures in the development of the smartphone and expert assessments of the industry's main players--Apple, Google, Microsoft, and Samsung--"The Smartphone" is the perfect introduction to this most personal of gadgets. Your smartphone will never look the same again.

Mobile computing technology has come a long way in recent years-providing anytime, anywhere communication and access to information. Bringing students up to date on important technological and industry developments, Principles of Mobile Computing and Communications examines mobile networks and relevant standards, highlighting issues unique to the mobile computing environment and exploring the differences between conventional and mobile applications.

Going beyond discussions on wireless network infrastructure and how to develop enterprise mobile applications, this textbook considers pervasive computing and smart environments, the complexity of designing and developing such applications, and how issues are dependent on the context of the applications.

Following an overview of what mobile computing has to offer and how its applications affect both our professional and personal lives, it focuses on the technologies and the infrastructure of all mobile and wireless networks, cellular networks, WLANs, WPANs, and sensor and mobile ad hoc networks. The textbook then discusses the Mobile IP, adaptive behavior, power management, resource constraints, interface design, seamless mobility support, and locating sensing techniques and systems. It also discusses important security issues that concern all users regardless of applications employed.

Smartphone adoption has surpassed 50% of the population in more than 15 countries, and there are now more than one million mobile applications people can download to their phones. Many of these applications take advantage of smartphones as locative media, which is what allows smartphones to be located in physical space. Applications that take advantage of people s location are called location-based services, and they are the focus of this book. Smartphones as locative media raise important questions about how we understand the complicated relationship between the Internet and physical space. This book addresses these questions through an interdisciplinary theoretical framework and a detailed analysis of how various popular mobile applications including Google Maps, Facebook, Instagram, Yelp, and Foursquare use people s location to provide information about their surrounding space. The topics explored in this book are essential reading for anyone interested in how smartphones and location-based services have begun to impact the ways we navigate and engage with the physical world.

This completely revised and updated edition of the highly successful "UMTS Signaling" provides a deep insight into all aspects of UMTS signalling. The chapter structure has been reworked for improved "usability" for readers, as well as including many new features and updates.

The successful trial, deployment, operation and troubleshooting of 3G or UMTS infrastructures and applications is the biggest challenge facing today's mobile communications. Network element instability, network element and multi-vendor interoperability, configuration and network planning faults are just a few of the challenges affecting performance and profitability that need to be addressed. This book is an invaluable guide to resolving such problems.

Highlights of the Second Edition: Includes new information and scenarios on HSPA / HSDPA / HSUPA, and IMS Covers not only WCDMA, but also TD-SCDMA issues Contains up-to-date information on releases 5 and 6, and includes a new chapter on the future releases 7 and 8 Provides crucial information for network operators and equipment suppliers keen to understand how to handle and analyse UMTS signaling procedures in order to get the network into operation, detect errors and troubleshoot faults Uses first hand, real world information to explain issues which are unclear in the standards Includes comprehensive descriptions and documentation of UMTS reference scenarios for different UMTS procedures

The unified comprehensive approach taken by the authors makes this book essential reading for engineers in network operators, integrators or system suppliers who need to be at the cutting edge of this technology. It will also be an invaluable resource for postgraduateson telecommunications courses, especially those with a focus on signal analysis.

An extensive introduction to the engineering and manufacture of current and next-generation flat panel displays This book provides a broad overview of the manufacturing of flat panel displays, with a particular emphasis on the display systems at the forefront of the current mobile device revolution. It is structured to cover a broad spectrum of topics within the unifying theme of display systems manufacturing. An important theme of this book is treating displays as systems, which expands the scope beyond the technologies and manufacturing of traditional display panels (LCD and OLED) to also include key components for mobile device applications, such as flexible OLED, thin LCD backlights, as well as the manufacturing of display module assemblies. Flat Panel Display Manufacturing fills an important gap in the current book literature describing the state of the art in display manufacturing for today's displays, and looks to create a reference the development of next generation displays. The editorial team brings a broad and deep perspective on flat panel display manufacturing, with a global view spanning decades of experience at leading institutions in Japan, Korea, Taiwan, and the USA, and including direct pioneering contributions to the development of displays. The book includes a total of 24 chapters contributed by experts at leading manufacturing institutions from the global FPD industry in Korea, Japan, Taiwan, Germany, Israel, and USA. Provides an overview of the evolution of display technologies and manufacturing Treats display products as systems with manifold applications, expanding the scope beyond traditional display panel manufacturing to key components for mobile devices and TV applications Provides a detailed overview of LCD manufacturing, including panel architectures, process flows, and module manufacturing Provides a detailed overview of OLED manufacturing for both mobile and TV applications, including a chapter dedicated to the young field of flexible OLED manufacturing Provides a detailed overview of the key unit processes and corresponding manufacturing equipment, including manufacturing test & repair of TFT array panels as well as display module inspection & repair Introduces key topics in display manufacturing science and engineering, including productivity & quality, factory architectures, and green manufacturing Flat Panel Display Manufacturing will appeal to professionals and engineers in R&D departments for display-related technology development, as well as to graduates and Ph.D. students specializing in LCD/OLED/other flat panel displays.

Voice over Internet Protocol (VoIP) is gaining a lot of attention these days, as more companies and individuals switch from standard telephone service to phone service via the Internet. The reason is simple: A single network to carry voice and data is easier to scale, maintain, and administer. As an added bonus, it's also cheaper, because VoIP is free of the endless government regulations and tariffs imposed upon phone companies. VoIP is simply overflowing with hack potential, and VoIP Hacks is the practical guide from O'Reilly that presents these possibilities to you. It provides dozens of hands-on projects for building a VoIP network, showing you how to tweak and customize a multitude of exciting things to get the job done. Along the way, you'll also learn which standards and practices work best for your particular environment. Among the quick and clever solutions showcased in the book are those for: * gauging VoIP readiness on an enterprise network * using SIP, H.3 23, and other signaling specifications * providing low-layer security in a VoIP environment * employing IP hardphones, analog telephone adapters, and softPBX servers * dealing with and avoiding the most common VoIP deployment mistakes In reality, VoIP Hacks contains only a small subset of VoIP knowledge-enough to serve as an introduction to the world of VoIP and teach you how to use it to save money, be more productive, or just impress your friends. If you love to tinker and optimize, this is the one technology, and the one book, you must investigate.