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  • Book Overview & Buying Freeswitch 1.6 Cookbook
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Freeswitch 1.6 Cookbook

Freeswitch 1.6 Cookbook

By : Anthony Minessale II, Giovanni Maruzzelli
5 (3)
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Freeswitch 1.6 Cookbook

Freeswitch 1.6 Cookbook

5 (3)
By: Anthony Minessale II, Giovanni Maruzzelli
Buy this Book

Overview of this book

FreeSWITCH 1.6 Cookbook is written for anyone who wants to learn more about using FreeSWITCH in production. The information is presented in such a way that you can get up and running quickly. The cookbook approach eschews much of the foundational concepts, and instead focuses on discrete examples that illustrate specific features. If you need to implement a particular feature as quickly as possible, then this book is for you.
Table of Contents (9 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Routing Calls
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1. Routing Calls
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Introduction
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Internal calls
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Incoming DID (also known as DDI) calls
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Outgoing calls
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Ringing multiple endpoints simultaneously
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Ringing multiple endpoints sequentially (simple failover)
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Advanced multiple endpoint calling with enterprise originate
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Time-of-day routing
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Manipulating SIP To: headers on registered endpoints to reflect DID numbers
2
2. Connecting Telephones and Service Providers
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2. Connecting Telephones and Service Providers
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Introduction
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Configuring an SIP phone to register with FreeSWITCH
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Connecting to Skype
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Configuring an SIP gateway
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Codec configuration
3
3. Processing Call Detail Records
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3. Processing Call Detail Records
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Introduction
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Using CSV CDRs
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Using XML CDRs
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Inserting CDRs into a backend database
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Using a web server to handle XML CDRs
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Using the event socket to handle CDRs
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Directly inputting CDRs into various databases in real time
4
4. External Control
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4. External Control
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Introduction
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Getting familiar with the fs_cli interface
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Setting up the event socket library
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Establishing an inbound event socket connection
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Establishing an outbound event socket connection
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Using fs_ivrd to manage outbound connections
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Filtering events
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Launching a call with an inbound event socket connection
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Using the ESL connection object for call control
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Using the built-in web interface
5
5. PBX Functionality
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5. PBX Functionality
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Introduction
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Creating users
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Accessing voicemail
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The company directory
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Using phrase macros to build sound prompts
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Creating XML IVR menus
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Music on hold
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Creating conferences
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Sending faxes
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Receiving faxes
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Basic text-to-speech with mod_flite
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Advanced text-to-speech with mod_tts_commandline
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Recording calls
6
6. WebRTC and Mod_Verto
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6. WebRTC and Mod_Verto
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Introduction
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Configuring FreeSWITCH for WebRTC
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SIP signaling in JavaScript with SIP.js (WebRTC client)
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Verto installation and setup
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Verto signaling in JavaScript using Verto.js (Verto client)
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7. Dialplan Scripting with Lua
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7. Dialplan Scripting with Lua
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Introduction
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Creating a basic Lua script
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User interaction and DTMF gathering
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Using conditionals, loops, web calls, and regular expressions
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Connecting to an external database
8
Index
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Index

Setting up the event socket library

Most event socket programming is not usually done in C, but rather in one of the more common scripting languages, such as Perl, PHP, Python, Ruby, and so on. The Event Socket Library (ESL) is available as a tool for abstracting the nitty-gritty of socket interacting.

Getting ready

The most difficult part about using ESL with a scripting language is making sure that the necessary development libraries have been installed. This process varies among operating systems and languages. The instructions presented here are for Debian or Red Hat Linux variants. If your operating system is not among these, then it is recommended that you check with the website for your language and look for instructions on how to install the development libraries.

Debian/Ubuntu

Debian variants (such as Ubuntu) generally use the apt package manager. The development libraries can be installed with these commands:

apt-get install libxml2-dev libpcre3-dev libcurl4-openssl-dev libgmp3-dev...

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