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FreeSWITCH 1.2

You're reading from   FreeSWITCH 1.2 Whether you're an IT pro or an enthusiast, setting up your own fully-featured telephony system is an exciting challenge, made all the more realistic for beginners by this brilliant book on FreeSWITCH. A 100% practical tutorial.

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Product type Paperback
Published in May 2013
Publisher Packt
ISBN-13 9781782161004
Length 428 pages
Edition 2nd Edition
Concepts
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Toc

Table of Contents (24) Chapters Close

FreeSWITCH 1.2
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Architecture of FreeSWITCH 2. Building and Installation FREE CHAPTER 3. Test Driving the Example Configuration 4. SIP and the User Directory 5. Understanding the XML Dialplan 6. Using XML IVRs and Phrase Macros 7. Dialplan Scripting with Lua 8. Advanced Dialplan Concepts 9. Moving Beyond the Static XML Configuration 10. Controlling FreeSWITCH Externally 11. Web-based Call Control with mod_httapi 12. Handling NAT 13. VoIP Security 14. Advanced Features and Further Reading The FreeSWITCH Online Community Migrating from Asterisk to FreeSWITCH The History of FreeSWITCH Index

General overview


The event system is the nerve center of FreeSWITCH, allowing both internal and external software to subscribe to a stream of activity happening inside the switching system. In FreeSWITCH, almost everything that happens generates (or "fires") an event. Receiving a new phone call results in an event. Ending a call results in an event. Committing a log entry to disk results in an event. Even speaking or going silent can generate an event. Each event becomes part of an event stream, which is tagged with an event type, event category , and various other details about the event. Other pieces of software can then listen for these events and act on them in any way they wish, such as streaming them to you via a TCP socket connection in plain text.

Events provide yet another way to extend functionality within FreeSWITCH. Events are different from hooks or modules (which can affect the actual processing and handling of calls in real time). Events provide an asynchronous (or non-blocking...

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