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

Remote site to 3CX site VPN tunnel

A site-to-site VPN will allow you to set up phones just like they are on your main 3CX server site. We won't go into the details of setting up a site-to-site VPN, as that is a standard networking skill you can find elsewhere, but you can see the overall setup in the following figure. I will note that using a VPN will have the added benefit of securing your VoIP conversations which is becoming increasingly important. A VPN will also require slightly more bandwidth overhead. With the site-to-site VPN method of connecting remote phones, it is much simpler to add more phones and avoid NAT issues entirely.

VPN-capable SIP phone to 3CX site VPN tunnel

Snom made the Snom 370, which includes a built-in OpenVPN client. As of this writing, this is the only VPN-capable 3CX supported phone that I know of. The remote phone connection method is beneficial because you don't need to "unsettle" the existing firewall infrastructure that may be in place at your organization...