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BOOK
VoIP Deployment For Dummies
Stephen P. Olejniczak
$15.10

About this product:
So you’re in charge of implementing a VoIP phone system for your organization? VoIP Deployment For Dummies is a crash course in Voice over Internet Protocol implementation!

Here’s how to analyze your network and implement a VoIP phone system, manage and maintain it, keep it secure, and troubleshoot problems. You’ll learn how to plan the rollout, work with Session Initiation Protocol (SIP), handle fax issues, and keep your users happy.

  • Understand how VoIP works, common misconceptions about it, and the pros and cons for your organization
  • Compare and comprehend hardware and software choices
  • Discover the options for touch tones and faxing via VoIP systems
  • Analyze network devices, IP addresses, connections to remote sites, and other aspects that will affect VoIP implementation
  • Draw up a test plan, check out both voice and fax transmission, get a report, and schedule the installation
  • Investigate SIP call generation, identify the elements, understand cancelled calls, and re-INVITE calls
  • Troubleshoot your system, identify call variables, trace the source of a problem, manage trouble tickets, and resolve failures
  • Manage latency, jitter, and flap, and take advantage of Wireshark
  • Find out what to expect when your system goes live

Written by an expert with extensive real-world experience in VoIP implementation and management, VoIP Deployment For Dummies provides the know-how you need. You’ll be able to implement your system and manage any issues proactively, which is sure to look good to your boss!

BOOK
Switching to VoIP
Theodore Wallingford
$16.00

About this product:

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 empowers businesses 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'll discover 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 directory services
  • 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.

BOOK
VoIP For Dummies (For Dummies (Computer/Tech))
Timothy V. Kelly
$13.50

About this product:
Put your phone system on your computer network and see the savings

See how to get started with VoIP, how it works, and why it saves you money

VoIP is techspeak for "voice over Internet protocol," but it could spell "saving big bucks" for your business! Here's where to get the scoop in plain English. Find out how VoIP can save you money, how voice communication travels online, and how to choose the best way to integrate your phone system with your network at home or at the office.

Discover how to:

  • Use VoIP for your business or home phone service
  • Choose the best network type
  • Set up VoIP on a wireless network
  • Understand transports and services
  • Demonstrate VoIP's advantages to management
BOOK
Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions
Mark Collier
$25.98

About this product:

Sidestep VoIP Catastrophe the Foolproof Hacking Exposed Way

"This book illuminates how remote users can probe, sniff, and modify your phones, phone switches, and networks that offer VoIP services. Most importantly, the authors offer solutions to mitigate the risk of deploying VoIP technologies." --Ron Gula, CTO of Tenable Network Security

Block debilitating VoIP attacks by learning how to look at your network and devices through the eyes of the malicious intruder. Hacking Exposed VoIP shows you, step-by-step, how online criminals perform reconnaissance, gain access, steal data, and penetrate vulnerable systems. All hardware-specific and network-centered security issues are covered alongside detailed countermeasures, in-depth examples, and hands-on implementation techniques. Inside, you'll learn how to defend against the latest DoS, man-in-the-middle, call flooding, eavesdropping, VoIP fuzzing, signaling and audio manipulation, Voice SPAM/SPIT, and voice phishing attacks.

  • Find out how hackers footprint, scan, enumerate, and pilfer VoIP networks and hardware
  • Fortify Cisco, Avaya, and Asterisk systems
  • Prevent DNS poisoning, DHCP exhaustion, and ARP table manipulation
  • Thwart number harvesting, call pattern tracking, and conversation eavesdropping
  • Measure and maintain VoIP network quality of service and VoIP conversation quality
  • Stop DoS and packet flood-based attacks from disrupting SIP proxies and phones
  • Counter REGISTER hijacking, INVITE flooding, and BYE call teardown attacks
  • Avoid insertion/mixing of malicious audio
  • Learn about voice SPAM/SPIT and how to prevent it
  • Defend against voice phishing and identity theft scams
BOOK
VoIP: Internet Linking for Radio Amateurs
Jonathan Taylor
$14.93

About this product:
Where Radio Meets the Internet! This second edition of VoIP: Internet Linking for Radio Amateurs is your complete guide to several of the most widely-used VoIP systems used by hams, with particular attention to EchoLink and the Internet Radio Linking Project, or IRLP. The book is designed for beginners who need information on how to get started, set-up, and use these systems. For the more advanced, it provides plenty of technical meat for those who want to dig deeper into VoIP applications and discover how they actually work.

BOOK
Hacking VoIP: Protocols, Attacks, and Countermeasures
Himanshu Dwivedi
$26.65

About this product:

Voice Over Internet Protocol (VoIP) networks, the technology used to place phone calls through the Internet, suffer from the same security holes as standard IP networks, as well as new threats specific to telephony. In addition to attacks on network availability and authentication, administrators must contend with eavesdropping, audio injection, Caller ID spoofing, VoIP phishing, and other unique exploits. All of these security holes can result in the leakage of information and in unreliable phone calls. Hacking VoIP reviews the many possible VoIP attacks, and discusses the best defenses against them for both enterprise and home VoIP solutions. Author Himanshu Dwivedi introduces popular security assessment tools, describes the inherent vulnerabilities of common hardware and software packages, and provides the first ever VoIP security audit program. The book covers common enterprise VoIP protocols such as SIP and RTP as well as unique protocols like H.323 and IAX.

BOOK
VoIP Hacks: Tips & Tools for Internet Telephony
Theodore Wallingford
$18.21

About this product:

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.323, 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.

BOOK
Internet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation Protocol (Networking Council)
Alan B. Johnston
$52.07

About this product:
"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

BOOK
Introduction to IP Telephony: Why and How Companies are Upgrading Private Telephone Systems to use VoIP Services, Second Edition
Lawrence Harte
$12.44

About this product:
This book explains why people and companies are converting some or all of their existing (legacy) telephone systems from dedicated telephone systems (such as proprietary PBX) to more standard IP telephony systems. These conversions allow for telephone bill cost reduction, increased ability to control telephone services, and the addition of new telephone information services. Through the use of IP telephony service, companies can immediately reduce their telecommunication costs 40% to 70%. This book provides an overview of the different types of IP Telephony systems including IP PBX, IP Centrex and Internet Telephone systems. You will learn the key functional parts of voice over IP systems and how voice over Internet protocol (VoIP) systems work. Explained are the processes used to setup and control IP telephony service. The common IP Telephony protocols including session initiation protocol (SIP), Media Gateway Control Protocol (MGCP) and H.323 are described as well. You will learn how to connect telephones through data networks using adapters or by using telephones that plug directly into data networks (IP telephones). Discover what equipment and service choices you have and how they can affect your costs and service quality. Find out how packet losses and packet delays creates distortion and operational challenges and ways to reduce or eliminate these effects. Advanced telephone features that are only possible through IP Telephony are described along with how customers can setup and configure their equipment through the use of self provisioning web portals. Learn about the different types of services, their typical costs and some of the hidden costs of IP Telephony and ways to reduce or avoid them. Some of the most important topics featured are: • The different types of IP Telephony systems • Functional parts of VoIP systems • The processes used to setup and control IP telephony service • How to connect standard telephones through data networks • What choices you have and how they can effect your service quality • Advanced telephone features that are only possible through IP Telephony • The different types of services and their typical costs • Some of the hidden costs of IP Telephony

BOOK
Taking Charge of Your VoIP Project
Jeffrey T. Hicks
$10.00

About this product:

Strategies and solutions for successful VoIP deployments

Network Business Series
Justify your network investment

  • The step-by-step approach to VoIP deployment and management enables you to plan early and properly for successful VoIP integration with your existing systems, networks, and applications.

  • The detailed introduction offers a common grounding for members of both the telephony and data networking communities.

  • IT managers and project leaders are armed with details on building a business case for VoIP, including details of return-on-investment (ROI) analysis and justification.
  • A VoIP deployment is presented as a major IT project, enabling you to understand the steps involved and the required resources.
  • The comprehensive look at quality of service and tuning describes when and where to use them in a VoIP deployment. These are often the most complex topics in VoIP; you'll get smart recommendations on which techniques to use in various circumstances.
  • You learn how to plan for VoIP security, including prevention, detection, and reaction.

Voice over IP (VoIP) is the telephone system of the future. Problem is, VoIP is not yet widely deployed, so there are few skilled practitioners today. As you make your move to VoIP, how will you know how to make VoIP work and keep it working well? What changes will you need to make without disrupting your business? How can you show your return on this investment?

Many books contain technical details about VoIP, but few explain in plain language how to make it run successfully in an enterprise. Taking Charge of Your VoIP Project provides the detailed plans you need to be successful in your organization's deployment of VoIP. Through their years of work in the field, authors John Q. Walker and Jeffrey T. Hicks bring a project-oriented approach to VoIP, with much-needed clarity on getting VoIP to work well.

Taking Charge of Your VoIP Project starts with simple concepts, each chapter building on the knowledge from the last. Although not a technical manual, you learn about the standards, such as H.323, G.711, and Real-Time Transport Protocol (RTP), and the implications they have on your VoIP system. Most importantly, you'll gain expert advice and a systematic guide on how to make VoIP work for your organization.

This volume is in the Network Business Series offered by Cisco Press. Books in this series provide IT executives, decision makers, and networking professionals with pertinent information on today's most important technologies and business strategies.

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