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

Tools


Telecommunication can be seen as being comprised of the two elements of signaling and media, and so can the tools to debug and troubleshoot it.

But this comes with a caveat: Anything that runs in a server, or through wires, is just packets of data. So, for media too, we will have to get the stream of data describing our audio (or video, or fax), then convert it into a playable format, and hear what the end user experience was.

Bottom line: Packet capture, analysis, conversion, editing, archiving, slicing and dicing is the bread and butter of diagnosing VoIP for all that concerns codecs, routing, networking, infrastructure, and the like, while media replaying (say, listening or watching captured RTP packets) has in itself a lesser role. But actual end user experience can only be understood via media replaying (are there audio artifacts? Low volume? Echo? Noise? Clipping?). Understanding end user experience "in their own words" is fundamental for a smooth support assistance ("then, since...