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 3. ITSP and Voice Codecs Optimization

This chapter reveals the most important things to consider when connecting voice traffic to FreeSWITCH — what you want to check out in an Internet Telephony Service Provider (ITSP) to get the best resulting quality and more bang for your bucks.

In a fiercely competitive market, many operators are floating different products and offers, targeted to the general public, to companies of a specific size, or to vertical markets.

Here you'll find an explanation of what can actually make a difference for you and your users and customers, apart from price points.

In this chapter, we will cover:

  • ITSPs – what they do

  • Routes (to numbers)

  • DIDs (aka DDIs) — for example, numbers

  • Quality

  • Support

  • Additional features (T38, Caller ID, Overlay)

  • Integration APIs

  • Codec gotchas

  • High definition audio, stereo