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Mastering FreeSWITCH

You're reading from  Mastering FreeSWITCH

Product type Book
Published in Jul 2016
Publisher Packt
ISBN-13 9781784398880
Pages 300 pages
Edition 1st Edition
Languages
Concepts
Authors (8):
Russell Treleaven Russell Treleaven
Profile icon Russell Treleaven
Seven Du Seven Du
Profile icon Seven Du
Darren Schreiber Darren Schreiber
Profile icon Darren Schreiber
Ken Rice Ken Rice
Profile icon Ken Rice
Mike Jerris Mike Jerris
Profile icon Mike Jerris
Kalyani Kulkarni Kalyani Kulkarni
Profile icon Kalyani Kulkarni
Florent Krieg Florent Krieg
Profile icon Florent Krieg
Charles Bujold Charles Bujold
Profile icon Charles Bujold
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Toc

Table of Contents (21) Chapters close

Mastering FreeSWITCH
Credits
About the Authors
About the Reviewers
Contributors
www.PacktPub.com
Preface
1. Typical Voice Uses for FreeSWITCH 2. Deploying FreeSWITCH 3. ITSP and Voice Codecs Optimization 4. VoIP Security 5. Audio File and Streaming Formats, Music on Hold, Recording Calls 6. PSTN and TDM 7. WebRTC and Mod_Verto 8. Audio and Video Conferencing 9. Faxing and T38 10. Advanced IVR with Lua 11. Write Your FreeSWITCH Module in C 12. Tracing and Debugging VoIP 13. Homer, Monitoring and Troubleshooting Your Communication Platform Index

Mandatory functions


Each FreeSWITCH module must at least declare three functions, LOAD, RUNTIME, and SHUTDOWN:

The LOAD and SHUTDOWN functions must be implemented, and are called at startup and when unloading the module. In LOAD you create and initialize the module's data structures, get values from the configuration file, and get your module ready for work. In SHUTDOWN you do any housekeeping needed to happily forget about your module, and in particular you release any resources you may have locked or allocated during module initialization and lifespan.

RUNTIME function implementation is not mandatory. For example, you must declare it, but you can avoid implementing it. If you implement it, the RUNTIME function will be executed in its own thread after the LOAD function has finished execution, for example, when the module has been successfully loaded by FreeSWITCH.

RUNTIME is often (not always) implemented as a looping function that will continue to run until module unloads.

Load function

Let...

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