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Internet Telephony Books
Internet Telephony for Dummies
by Daniel D. Briere , Patrick J. Hurley , Rebecca Wetzel
Authors Briere, Hurley, and Wetzel bring some order to the chaos. They begin with an overview of what makes up Internet telephony and how to put it to use. Then Internet Telephony for Dummies simply discusses the underlying history and technology of the subject--mercifully skipping over the basic "what is the Internet" material you've read in other books. From there, the authors--in the light-hearted Dummies manner--tell you how to ensure that your Internet service provider (ISP) supports telephony, what protocol to use, how to select and use equipment, what the leading software is, and more. The authors even discuss the gateway services that enable you to use the Net with a regular telephone or fax machine. The book offers a variety of troubleshooting tips for when things go wrong as well as a look at upcoming options. Internet Telephony for Dummies comes with a CD-ROM that includes telephony software--some demo software and some fully functional--for both Macs and PCs.
IP Telephony Demystified
by Ken Camp
IS INTERNET TELEPHONY FOR YOU? IF SO, HOW? ANSWERS HERE.
With a potential 90 percent reduction in phone costs, voice over data networks could offer your business substantial benefits. But how do you know if telephone over IP (Internet Protocol) suits your needs and setup? And if it does, what will it take to make it work? If you want straightforward answers to these questions, you've come to the right place. Lighting the way to IP telephony is Ken Camp's specialty, and in IP Telephony Demystified he offers the best set of tools out there for making basic get-going decisions.
You must read this book if-
* you're on IT staff or in management of a small business and investigating voice over data lines
* escaping from the telephone companies' clutches sounds appealing
* the economies of voice and data on the same network are obvious
* the no-go or go decision on IP telephony is your assignment
* what's-in-it-for-my-company questions are uppermost in your mind
* direct, measurable benefits is an important item in your agenda
* choosing the right protocol might be a job-saver
* before wrestling SIP, H.323, or Megaco/H.248, you want to know if the match is worth the prize
* practical how-to's on integrating voice into your LAN could reduce your workload
* you'd rather have quality-of-service (QoS) answers--on IntServ, Diff Serv, and MPLS--than quality-of-service concerns
* a 3D view of cost and service implications is what you seek
IP telephony is simply voice sent over an IP network like the Internet. It can mean enormous savings--but not for every business. This is the book that will clarify whether it's right for your company, and if so, how to make it work.
Voice Over IP Technologies: Building the Converged Network
by Mark A. Miller
Voice over IP Technologies provides solid technical information on how to successfully design and implement a converged network, combining voice, data, fax and video transmissions into a cohesive networking infrastructure centered on the Internet Protocol.
Converged networks, which combine voice, data, fax and video transmissions into a cohesive networking infrastructure -- all centered on the Internet Protocol, or IP -- promise a number of advantages over existing, separate networking environments. But to successfully design and implement a converged network requires expertise on both the voice and data networking sides of the house. Unfortunately, few individuals have these credentials -- either you are a voice networking expert, and familiar with circuit switching and connections between PBXs, or you are a data networking expert, familiar with packet switching and connections between routers and servers.
The objective of this text is to bridge the gap between the voice and data networking sides, and provide the reader with the opportunity to fill in their areas of weakness with solid technical information. In addition, this text presents a number of case studies, from architectural, financial and technical perspectives that illustrate real-world applications for these technologies.
Voice over IP Fundamentals
by Jonathan Davidson , James Peters , Brian Gracely
A systematic approach to understanding the basics of Voice over IP
Understand the basics of PSTN services and IP signaling protocols, including SS7.
Learn how VoIP can run the same applications as the existing telephony system, but in a more cost-efficient and scalable manner.
Delve into such VoIP topics as jitter, latency, packet loss, codecs, quality of service tools, and mean opinion scores.
Learn about the functional components involved in using Cisco gateways to deploy VoIP networks.
Voice over IP (VoIP), which integrates voice and data transmission, is quickly becoming an important factor in network communications. It promises lower operational costs, greater flexibility, and a variety of enhanced applications. Voice over IP Fundamentals provides a thorough introduction to this new technology to help experts in both the data and telephone industries plan for the new networks.
You will learn how the telephony infrastructure was built and how it works today, the major concepts concerning voice and data networking, transmission of voice over data, and IP signaling protocols used to interwork with current telephony systems. The authors cover various benefits and applications of VoIP and how to ensure good voice quality in your network.
This book is part of the Networking Technology Series from Cisco Press, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.