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Mastering FreeSWITCH

You're reading from Mastering FreeSWITCH Advanced tips and tricks for advanced multimedia communication

Product type Paperback

Published in Jul 2016

Publisher Packt

ISBN-13 9781784398880

Length 300 pages

Edition 1st Edition

Languages

C

Tools

FreeSWITCH

Concepts

Networking

Authors (2):

Anthony Minessale II

Giovanni Maruzzelli

View More author details

Table of Contents (15) Chapters

Preface

1. Typical Voice Uses for FreeSWITCH FREE CHAPTER

2. Deploying FreeSWITCH

3. ITSP and Voice Codecs Optimization

4. VoIP Security

5. Audio File and Streaming Formats, Music on Hold, Recording Calls

6. PSTN and TDM

7. WebRTC and Mod_Verto

8. Audio and Video Conferencing

9. Faxing and T38

10. Advanced IVR with Lua

11. Write Your FreeSWITCH Module in C

12. Tracing and Debugging VoIP

13. Homer, Monitoring and Troubleshooting Your Communication Platform

Index

SIP, RTP, SDP, RTCP, OH MY!

To troubleshoot VoIP you need to understand at least a little bit of SIP and related protocols. That's the sad truth. You will get nothing from packet-capture and analysis if you don't understand the basics of the protocols.

You can certainly send the file containing the captured packets to someone who's more SIP conversant. If you want to take that option, read the following section about the tools you can use to generate a pcap file with all the relevant info.

The other option is to learn it yourself before problems occur, using sipgrep and sngrep (they make for a colorful, easy and complete toolset) to visualize protocol packets, and one of the many books/tutorials out there as reference. Do test calls and watch what happens. You'll see that there are regularities and meanings, and after a while you'll know most patterns and what to look for. You'll be ready when the time comes.

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Authors (2)

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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Giovanni Maruzzelli

Giovanni Maruzzelli

Giovanni Maruzzelli (gmaruzz@OpenTelecom.IT) 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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