IP Telephony Demystified
暫譯: IP 電話技術揭秘

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

* whats-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-tos on integrating voice into your LAN could reduce your workload

* youd 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 its right for your company, and if so, how to make it work.

Contents           

    Chapter 1: History and Overview of Telecommunications

    Chapter 2: The Internet and IP Networking

    Chapter 3: Fundamentals of Packetized Voice

    Chapter 4: IP Telephony Protocols

    Chapter 5: The Lure of IP Telephony: Can It Work For Me?

    Chapter 6: Performance, Quality of Service, and Traffic Engineering

    Chapter 7: Gateways Between Networks

    Chapter 8: Premise-Based Telephony

    Chapter 9: Network-Based IP Telephony Services

    Chapter 10: The Future of IP Telephony

    Glossary

    Resource List
     Solution Vendors
     Standards Organizations
     Newsletters and Information Sites
     General Interest URLs

   Index