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  • Book Overview & Buying FreeSWITCH Cookbook
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FreeSWITCH Cookbook

FreeSWITCH Cookbook

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FreeSWITCH Cookbook

FreeSWITCH Cookbook

4.5 (8)
Buy this Book

Overview of this book

FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice, chat, and video applications. It can scale from a soft-phone to a PBX and even up to an enterprise-class softswitch.In the FreeSWITCH Cookbook, members of the FreeSWITCH development team share some of their hard-earned knowledge with you in the book's recipes. Use this knowledge to improve and expand your FreeSWITCH installations.The FreeSWITCH Cookbook is an essential addition to any VoIP administrator's library.The book starts with recipes on how to handle call routing and then discusses connecting your FreeSWITCH server to the outside world.It then teaches you more advanced topics like CDR handling, practical examples of controlling FreeSWITCH with the event socket, and configuring many features commonly associated with a PBX installation.
Table of Contents (12 chapters)
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FreeSWITCH Cookbook
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FreeSWITCH Cookbook
Credits
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Credits
About the Authors
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About the Authors
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Routing Calls
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Routing Calls
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Introduction
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Internal calls
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Incoming DID 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 To: headers on registered endpoints to reflect DID numbers
2
Connecting Telephones and Service Providers
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Connecting Telephones and Service Providers
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Introduction
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Configuring a SIP phone to register with FreeSWITCH
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Connecting audio devices with PortAudio
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Using FreeSWITCH as a softphone
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Configuring a SIP gateway
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Configuring Google Voice
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Codec configuration
3
Processing Call Detail Records
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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
4
External Control
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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
PBX Functionality
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PBX Functionality
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Introduction
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Creating users
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Accessing voicemail
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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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Listening to live calls with telecast
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Recording calls
1
Index
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Index

Listening to live calls with telecast

Sometimes you will wish to listen to calls in progress. It is not always easy to "catch" a specific call. FreeSWITCH includes a simple interface that let's you listen in on a call with only a browser and an MP3 player such as iTunes. This feature is called telecast.

Getting ready

Be sure to complete the steps in the Using the built-in web interface recipe in this chapter before attempting to use the telecast feature. You will also need a browser and speakers or headphones in order to listen in during a phone call.

How to do it...

Start by enabling mod_shout, which is what handles the audio stream. Windows users skip to step 3. Linux/Unix users start with these steps:

  1. Open modules.conf in the FreeSWITCH source and uncomment the line with #formats/mod_shout by removing the # at the beginning of the line.

  2. Save and exit. Build the module with this command:

    make mod_shout-install

  3. Set mod_shout to load by default when FreeSWITCH starts. Open conf/autoload_configs...

CONTINUE READING
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Tech Concepts
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Programming languages
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FreeSWITCH Cookbook
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