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  • Book Overview & Buying Mastering FreeSWITCH
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Mastering FreeSWITCH

Mastering FreeSWITCH

By : Russell Treleaven, Seven Du, Schreiber, Ken Rice, Mike Jerris, Florent Krieg, Kalyani Kulkarni, Charles Bujold
4.2 (6)
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Mastering FreeSWITCH

Mastering FreeSWITCH

4.2 (6)
By: Russell Treleaven, Seven Du, Schreiber, Ken Rice, Mike Jerris, Florent Krieg, Kalyani Kulkarni, Charles Bujold
Buy this Book

Overview of this book

FreeSWITCH is one of the best tools around if you’re looking for a modern method of managing communication protocols through a range of different media. From real-time browser communication with the WebRTC API to implementing VoIP (voice over internet protocol), with FreeSWITCH you’re in full control of your projects. This book shows you how to unlock its full potential – more than just a tutorial, it’s packed with plenty of tips and tricks to make it work for you. Written by members of the team who actually helped build FreeSWITCH, it will guide you through some of the newest features of version 1.6 including video transcoding and conferencing. Find out how FreeSWITCH interacts with other tools and APIs, learn how to tackle common (and not so common) challenges ranging from high availability to IVR development and programming advanced PBXs. Great communication functionality begins with FreeSWITCH – find out how and get your project up and running today.
Table of Contents (15 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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Conventions
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Reader feedback
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Customer support
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1
1. Typical Voice Uses for FreeSWITCH
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1. Typical Voice Uses for FreeSWITCH
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Understanding routing calls in FreeSWITCH
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FreeSWITCH Products and Services
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Development
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Accounting and billing
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Summary
2
2. Deploying FreeSWITCH
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2. Deploying FreeSWITCH
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Network requirements
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Testing with SIPp
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Logging with FreeSWITCH
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Call Detail Records
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Monitoring
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HA deployment
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Summary
3
3. ITSP and Voice Codecs Optimization
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3. ITSP and Voice Codecs Optimization
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ITSPs – what they do
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Routes (to numbers)
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DIDs (aka DDIs) – numbers
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Quality of routes
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Various important features
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Support, redundancy, high availability, and number portability
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Summary
4
4. VoIP Security
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4. VoIP Security
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Latest versions of it all
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Default configuration is a demo
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Change passwords
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Lock all that's not trusted
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Dropping root privileges (file permissions)
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Fail2ban on all services
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Encrypting SIP with TLS (SIPS)
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Encrypting (S)RTP via SDES (key exchange in SDP)
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Encrypting (S)RTP via ZRTP (key exchange in RTP)
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New frontiers of VoIP encryption (WebRTC, WebSockets, DTLS)
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Summary
5
5. Audio File and Streaming Formats, Music on Hold, Recording Calls
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5. Audio File and Streaming Formats, Music on Hold, Recording Calls
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Traditional telephony codecs constrain audio
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HD audio frontiers are pushed by cellphones, right now
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FreeSWITCH audio, file, and stream formats
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Recording calls
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Tapping audio
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Summary
6
6. PSTN and TDM
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6. PSTN and TDM
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OpenZap
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FreeTDM
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I/O modules
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Signaling modules
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FreeTDM installation
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Configuring FreeTDM
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Debugging
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Summary
7
7. WebRTC and Mod_Verto
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7. WebRTC and Mod_Verto
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WebRTC
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Summary
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8. Audio and Video Conferencing
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8. Audio and Video Conferencing
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Conference basics
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Video conference
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Conference performances
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Summary
9
9. Faxing and T38
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9. Faxing and T38
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What is Fax on PSTN?
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What is Fax over IP?
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Fax and FreeSWITCH
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ITSPs and Real World Fax Support
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Summary
10
10. Advanced IVR with Lua
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10. Advanced IVR with Lua
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Installing IVR
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Structure of welcome.lua
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Incoming call processing
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After hangup
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Utility functions
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Summary
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11. Write Your FreeSWITCH Module in C
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11. Write Your FreeSWITCH Module in C
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What is a FreeSWITCH module?
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Developing a module
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Mod_Example outline
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Mandatory functions
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Configuration using XML
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Reacting to channel state changes
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Receiving and firing events
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Dialplan application
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API command
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Summary
12
12. Tracing and Debugging VoIP
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12. Tracing and Debugging VoIP
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What can go wrong?
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SIP, RTP, SDP, RTCP, OH MY!
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Tools
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Summary
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13. Homer, Monitoring and Troubleshooting Your Communication Platform
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13. Homer, Monitoring and Troubleshooting Your Communication Platform
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What is Homer?
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Installing Homer and the Capture Server
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Feeding SIP signaling from FreeSWITCH to Homer
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Searching signaling with Homer
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Feeding SIP signaling, QoS, MOS and RTP/RTCP stats from CaptAgent to Homer
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Correlating A-leg and B-leg
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Feeding logs and events to Homer
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Summary
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Index
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Index

FreeTDM installation

FreeTDM and its integration FreeSWITCH module, mod_freetdm, can be installed from several sources. The recommendation is to install it along with FreeSWITCH using the Linux distribution package installers.

Having said that, some FreeTDM modules may not be included in the packaged versions (for example, ftmod_r2) or you may be using an OS for which FreeSWITCH does not distribute binaries (for example, Arch Linux). In order to compile from sources you need to have previously installed the required dependencies. During build time the FreeTDM "configure" script will detect which libraries are available in your system and build only the modules that have their dependencies satisfied. The following is a list of dependencies you need to have installed on any of the listed modules. The FreeTDM core does not really depend on any libraries (any that are not shipped and built-in with it); it's only some of the signaling and IO modules that have dependencies on a number of libraries...

CONTINUE READING
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Tech Concepts
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Programming languages
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Mastering FreeSWITCH
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