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FreeSWITCH Cookbook

You're reading from   FreeSWITCH Cookbook Written by members of the FreeSWITCH team, this is the ultimate guide to getting the most out of the platform. Stuffed with over 40 recipes, just about every angle is covered, from call routing to enabling text-to-speech conversion.

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Product type Paperback
Published in Feb 2012
Publisher Packt
ISBN-13 9781849515405
Length 150 pages
Edition 1st Edition
Languages
Concepts
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Toc

Table of Contents (12) Chapters Close

FreeSWITCH Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Routing Calls FREE CHAPTER 2. Connecting Telephones and Service Providers 3. Processing Call Detail Records 4. External Control 5. PBX Functionality Index

Establishing an outbound event socket connection


An "outbound" event socket connection lets you control a call leg from a program that sits and waits for a TCP connection on a specific port. The dialplan socket application sends control of the call to the process listening on the specified TCP port. This recipe will guide you through the steps necessary to get a simple call control script up and running. You may find it easier to understand the information presented here if you are at least somewhat familiar with the concept of TCP sockets.

Getting ready

You will need a text editor and a telephone connected to FreeSWITCH as well as access to the fs_cli for your system. You will also need to have the ESL compiled and working for your scripting language of choice (see Setting up the event socket Library (ESL) earlier in this chapter). The language used in this is example is Perl, however the principles apply to all ESL-enabled languages. When we are through we will have a simple script that...

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