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FreeSWITCH 1.8

You're reading from FreeSWITCH 1.8 Get to grips with VoIP and WebRTC communication and quickly build robust telephony systems with FreeSWITCH

Product type Paperback

Published in Jul 2017

Publisher Packt

ISBN-13 9781785889134

Length 434 pages

Edition 1st Edition

Tools

FreeSWITCH

Concepts

Networking

Authors (2):

Giovanni Maruzzelli

Anthony Minessale II

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Table of Contents (23) Chapters

Title Page

Credits

About the Authors

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Architecture of FreeSWITCH FREE CHAPTER

2. Building and Installation

3. Test Driving the Example Configuration

4. User Directory, SIP, and Verto

5. WebRTC, SIP, and Verto

6. XML Dialplan

7. Phrase Macros and XML IVRs

8. Lua FreeSWITCH Scripting

9. Dialplan in Deep

10. Dialplan, Directory, and ALL via XML_CURL and Scripts

11. ESL - FreeSWITCH Controlled by Events

12. HTTAPI - FreeSWITCH Asks Webserver Next Action

13. Conferencing and WebRTC Video-Conferencing

14. Handling NAT

15. VoIP Security

16. Troubleshooting, Asking for Help, and Reporting Bugs

Writing WebRTC Clients

A WebRTC client, in its most popular implementation, is an HTML webpage(s) that loads a JavaScript(s). Together, HTML and JavaScript define the GUI and the behavior of the WebRTC client.

Usually the JavaScript part, loaded by the HTML, leverages one or more JavaScript libraries. Those libraries implement the signaling protocol of choice (in our case SIP or VERTO) and its interaction with WebRTC APIs. We have already seen how WebRTC APIs provide for accessing the local computer multimedia hardware (microphone and camera), manage the peer-to-peer streaming of audio and video with the peer, and a bidirectional data channel.

The session signaling protocol will leverage and complement those WebRTC P2P capabilities, so they become useful for much more than a connection to a pre-known address and port.

SIP and JavaScript

SIP for WebRTC has been notably implemented in theJsSIP JavaScript Open Source library. JsSIP was written by JosÃ© Luis MillÃ¡n, IÃ±aki Baz Castillo, and Sa...

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Authors (2)

Giovanni Maruzzelli

Giovanni Maruzzelli

Giovanni Maruzzelli ([email protected]) is heavily engaged with FreeSWITCH. In it, he wrote a couple of endpoint modules, and he is specialized in industrial grade deployments and solutions. He's the curator and coauthor of FreeSWITCH 1.6 Cookbook (Packt Publishing, 2015), and of Mastering FreeSWITCH (Packt Publishing, 2016) He's a consultant in the telecommunications sector, developing software and conducting training courses for FreeSWITCH, SIP, WebRTC, Kamailio, and OpenSIPS. As an Internet technology pioneer, he was the cofounder of Italia Online in 1996, which was the most popular Italian portal and consumer ISP. Also, he was the architect of its Internet technologies Italia Online (IOL). Back then, Giovanni was the supervisor of Internet operations and the architect of the first engine for paid access to il Sole 24 Ore, the most-read financial newspaper in Italy, and its databases (migrated from the mainframe). After that, he was the CEO of the venture capital-funded company Matrice, developing telemail unified messaging and multiple-language phone access to e-mail (text to speech). He was also the CTO of the incubator-funded company Open4, an open source managed applications provider. For 2 years, Giovanni worked in Serbia as an Internet and telecommunications investment expert for IFC, an arm of the World Bank. Since 2005, he has been based in Italy, and he serves ICT and telecommunication companies worldwide.

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Anthony Minessale II

Anthony Minessale II

Anthony Minessale II is the primary author and founding member of the FreeSWITCH Open Source Soft-Switch. Anthony has spent around 20 years working with open source software. In 2001, Anthony spent a great deal of time contributing code to the Asterisk PBX and has authored numerous features and fixes to that project. In 2005, Anthony started coding a new idea for an open source voice application. The FreeSWITCH project was officially open to the public on January 1 2006. In the years that followed, Anthony has been actively maintaining and leading the software development of the FreeSWITCH project. Anthony also founded the ClueCon Technology Conference in 2005, and he continues to oversee the production of this annual event. Anthony has been the author of several FreeSWITCH books, including FreeSWITCH 1.0.6, FreeSWITCH 1.2, FreeSWITCH Cookbook, FreeSWITCH 1.6 Cookbook, and Mastering FreeSWITCH

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