Book Image

The 3CX IP PBX Tutorial

By : Robert Lloyd, Matthew M. Landis, Matthew M Landis
Book Image

The 3CX IP PBX Tutorial

By: Robert Lloyd, Matthew M. Landis, Matthew M Landis

Overview of this book

Traditional PBX systems have often been expensive and proprietary. With 3CX, you can now create an easy-to-use, complete, and cost-effective phone system on Microsoft Windows. This practical guide offers the insight that a reader needs to exploit the potential that 3CX has to offer.This practical hands-on book covers everything you need to know about designing, installing and customizing 3CX to create an all-inclusive phone system. It takes a real-world approach that walks you through all aspects of 3CX and its features. From installing the software, to backing things up, to understanding what hardware you need – this book covers it all.The 3CX IP PBX Tutorial will take you from knowing very little about VoIP to almost expert level with detailed how-tos on every aspect of 3CX. Starting with the basics, and covering the free version of 3CX as well as the more advanced features of the Enterprise version, you will learn it all.In other words, this book covers numerous topics such as installation and configuration of 3CX, choosing a VoIP Provider, integration of a trunk into 3CX, the commonly used 3CX hardware, and backing up your phone system.
Table of Contents (15 chapters)
The 3CX IP PBX Tutorial
About the Authors
About the Reviewer


Codecs are used to convert analog signals (human voice) to digital signals that can be transmitted over some network medium, such as CAT5, fiber, wireless, and so on.

Each codec uses a certain amount of network bandwidth. The amount of bandwidth you have available will determine how many calls you can have at one time before your calls start having problems. Let's say you have the standard $30/month DSL at your house. This can typically be 5MBps of download speed but only 700Kbps of upload speed. Sure, you can download files quickly, but you can't send them. This is an important concept with VoIP. Each codec will use a certain amount of bandwidth to pass the digital data along. The standard is ITU G.711, also called A-law or U-law. This has only a little bit of compression on the line and is used most often because of the call quality. Another popular codec is ITU G.729. This codec is one of the better ones with regard to call quality and bandwidth use. The biggest problem is that...