Book Image

Mastering FreeSWITCH

By : Russell Treleaven, Seven Du, Darren Schreiber, Ken Rice, Mike Jerris, Kalyani Kulkarni, Florent Krieg, Charles Bujold
4 (1)
Book Image

Mastering FreeSWITCH

4 (1)
By: Russell Treleaven, Seven Du, Darren Schreiber, Ken Rice, Mike Jerris, Kalyani Kulkarni, Florent Krieg, Charles Bujold

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 (21 chapters)
Mastering FreeSWITCH
Credits
About the Authors
About the Reviewers
Contributors
www.PacktPub.com
Preface
7
WebRTC and Mod_Verto
Index

Chapter 4. VoIP Security

VoIP and FreeSWITCH security is a multi-layered area. You need to take care of all and each of those layers, because it is the weakest link that defines the strength of the chain.

We will not touch here on the issues related to general computer security. We will focus instead only on specific FreeSWITCH and VoIP best practices. Please note that if you have root access to your server via the Internet with a password "12345678", all the following specific measures will do little good.

In this chapter, we will cover:

  • Best practices to secure and protect FreeSWITCH

  • Fail2ban configuration

  • Encryption of SIP signaling, fraud prevention

  • Encryption of RTP audio, privacy, and confidentiality

  • Certificates in WebRTC and WebSockets (DTLS, mod_verto)