Book Image

Mastering FreeSWITCH

By : Russell Treleaven, Seven Du, Darren Schreiber, Ken Rice, Mike Jerris, Kalyani Kulkarni, Florent Krieg, Charles Bujold
4 (1)
Book Image

Mastering FreeSWITCH

4 (1)
By: Russell Treleaven, Seven Du, Darren Schreiber, Ken Rice, Mike Jerris, Kalyani Kulkarni, Florent Krieg, Charles Bujold

Overview of this book

FreeSWITCH is one of the best tools around if you’re looking for a modern method of managing communication protocols through a range of different media. From real-time browser communication with the WebRTC API to implementing VoIP (voice over internet protocol), with FreeSWITCH you’re in full control of your projects. This book shows you how to unlock its full potential – more than just a tutorial, it’s packed with plenty of tips and tricks to make it work for you. Written by members of the team who actually helped build FreeSWITCH, it will guide you through some of the newest features of version 1.6 including video transcoding and conferencing. Find out how FreeSWITCH interacts with other tools and APIs, learn how to tackle common (and not so common) challenges ranging from high availability to IVR development and programming advanced PBXs. Great communication functionality begins with FreeSWITCH – find out how and get your project up and running today.
Table of Contents (21 chapters)
Mastering FreeSWITCH
About the Authors
About the Reviewers
WebRTC and Mod_Verto

Configuration using XML

FreeSWITCH uses XML to represent its configuration, because XML lends itself perfectly (and directly) to a tree representation in which you can add and delete branches and leaves and easily locate sections, parameters, and values. Optimized XML routines are able to parse, create an in-memory representation, and manipulate that representation.

So, you'd better stop whining and learn to love XML.

There are many advanced facilities to help parse FreeSWITCH's configuration files; check syntax; associate settings, parameters, names, descriptions, allowed values' ranges; and many more.

In our implementation we keep it simple to the max (we love kisses), and only use the most basic XML related functions.

We create our XML pointers, then we raze the globals data structure we'll use to store state and configuration (you'd better do this razing, or you'll end up with stale values if you unload then reload the module).

switch_xml_open_cfg() will read our XML configuration file and...