Mastering FreeSWITCH

Chapter 11. Write Your FreeSWITCH Module in C

Modules are where you add functionalities to FreeSWITCH.

Is not very easy to write or modify a module, but neither is rocket science (by the way, as in real life, it always depends on what kind of rocket you want to build). And you can always find professional help by contacting the core FreeSWITCH developers.

This chapter will lay down all of the basic techniques needed to develop a new module:

• Reading XML configuration
• Adding a dialplan application
• Adding an API command
• Adding an event hook
• Adding a channel state change hook
• Firing an event

What is a FreeSWITCH module?

FreeSWITCH proper, the core FreeSWITCH, is a switching and mixing fabric with some message queues and a lot of very abstract APIs that define ...