Book Image

TrixBox Made Easy

By : Kerry Garrison, Barrie Dempster, Kerry Garrison (Project)
Book Image

TrixBox Made Easy

By: Kerry Garrison, Barrie Dempster, Kerry Garrison (Project)

Overview of this book

TrixBox is a telephone system based on the popular open source Asterisk PBX (Private Branch eXchange) Software. TrixBox allows an individual or organization to setup a telephone system with traditional telephone networks as well as Internet based telephony or VoIP (Voice over Internet Protocol). SugarCRM can be integrated with Asterisk, and is bundled with Trixbox offering real power and flexibility. The book begins by introducing telephony concepts before detailing how to plan a telephone system and moving on to the installation, configuration, and management of a feature packed PBX. This book is rich with practical examples and tools. It provides examples of well laid out telephone systems with accompanying spreadsheets to aid the reader in building stable telephony infrastructure.
Table of Contents (16 chapters)
TrixBox Made Easy
About the Authors
About the Reviewers
Free Chapter
Introduction to VoIP
TrixBox Configuration
Commonly Used VoIP Terms

Chapter 8. Advanced TrixBox Settings

In this chapter, we will have a look at some of the other features and considerations for our TrixBox deployment. We will cover conferencing, some advanced management options, and how to add tools. We will also cover adding other line types to our TrixBox system. By this point, we have enough to have a system up and running and to manage all our basic requirements. This chapter looks at extending those features to give us some extra features.

Firewall Settings

If we are going to use any remote extensions or ITSPs, sooner or later we will need to deal with firewall issues. Unfortunately, the SIP protocol is not very friendly with firewalls and Network Address Translation (NAT).

SIP as a protocol design makes sense, if every computer on the Internet has a unique IP address. However, in many cases, the computers sit behind a firewall that performs NAT of some kind and is the only device with a publicly accessible IP address. This makes it quite difficult...