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

Devices that can connect to 3CX as extensions

Earlier we noted that traditional phone systems depended on the manufacturer of the PBX phone system to make the extensions that connected to it. With the introduction of the SIP protocol standards, any VoIP phone system that adheres to SIP standards can connect to any SIP-based extension that adheres to SIP standards. This is a powerful openness that the 3CX Phone System leverages to allow many phone handsets and softphones to be used as extensions with 3CX.


This wonderful ability for all SIP devices to interoperate is theoretical. Sometimes the SIP standard has multiple ways of doing something and different manufacturers use different methods making things break down. Thankfully, 3CX has done a lot of interoperability testing which is available at

Let's take a look at some different categories of extensions that can connect to 3CX.


We've already covered the 3CX Phone. One...