Book Image

FreeSWITCH 1.0.6

Book Image

FreeSWITCH 1.0.6

Overview of this book

FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice and chat-driven products scaling from a soft-phone to a PBX and even up to an enterprise-class soft-switch. It is always exciting to design and build your own telephony system to suit your needs, but the task is time consuming and involves a lot of technical skills.This book comes to your rescue, helping you to set up a telephony system fast and easily using FreeSWITCH. It will take you from being a novice to creating a fully-functional telephony system of your own. It is rich with practical examples and will give you all of the information and skills needed to implement your own PBX system.The book begins by introducing the architecture and working of FreeSWITCH before detailing how to plan a telephone system and moving on to the installation, configuration, and management of a feature-packed PBX. You will learn about maintaining a user directory, XML dial plan and advanced dial plan concepts, call routing, and the extremely powerful Event Socket. You will finally learn about the online community and history of FreeSWITCH.
Table of Contents (18 chapters)
FreeSWITCH 1.0.6
Credits
About the Authors
About the Reviewer
Preface
The History Of FreeSWITCH
Index

Event-based modules


There are three different modules for handling events. They are as follows:

  1. mod_event_socket

  2. mod_event_multicast

  3. mod_erlang_event

mod_event_socket is by far the most used of the event handler modules, so we will be discussing it in detail. The other two modules are designed for more specific use cases and we will discuss them briefly.

mod_event_socket

mod_event_socket is the most common module in FreeSWITCH for sending and receiving events via third-party programs. This module provides a TCP socket which you can connect to from external software programs. Once authenticated, you can send and receive plain-text event information that is easy to understand and parse. It allows for bi-directional communication for both consuming events from and sending events to FreeSWITCH.

Utilizing event sockets is generally easy. First, you connect from an external program to a preconfigured socket which is configured for mod_event_socket. You authenticate to the system, then you begin...