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

OpenZap


Bear with me for a few paragraphs and you'll be wiser by understanding how the OSS telephony revolution started and how FreeTDM came into existence and was integrated in FreeSWITCH.

In the early days of the FreeSWITCH project, Anthony wrote the telephony library, "OpenZap" and the endpoint driver, mod_openzap to interconnect FreeSWITCH with analog and digital time domain multiplexing (TDM) networks, making use of telephony hardware from vendors such as Sangoma, Digium, and Pika Technologies. The OpenZap project was named after the older "Zapata Telephony"(ZapTel) project by Jim Dixon, who was probably the first person to come up with an open source driver to connect an ISDN telephony card and then a cheap voice modem to a BSD/Linux computer. ZapTel was a revolutionary project in many ways (hence the name "Zapata Telephony", after the Mexican revolutionary, Emiliano Zapata) and provided a critical boost to the open source telephony movement (which, arguably, really took off with the...