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Mastering FreeSWITCH

You're reading from  Mastering FreeSWITCH

Product type Book
Published in Jul 2016
Publisher Packt
ISBN-13 9781784398880
Pages 300 pages
Edition 1st Edition
Languages
Concepts
Authors (8):
Russell Treleaven Russell Treleaven
Profile icon Russell Treleaven
Seven Du Seven Du
Profile icon Seven Du
Darren Schreiber Darren Schreiber
Profile icon Darren Schreiber
Ken Rice Ken Rice
Profile icon Ken Rice
Mike Jerris Mike Jerris
Profile icon Mike Jerris
Kalyani Kulkarni Kalyani Kulkarni
Profile icon Kalyani Kulkarni
Florent Krieg Florent Krieg
Profile icon Florent Krieg
Charles Bujold Charles Bujold
Profile icon Charles Bujold
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Toc

Table of Contents (21) Chapters close

Mastering FreeSWITCH
Credits
About the Authors
About the Reviewers
Contributors
www.PacktPub.com
Preface
1. Typical Voice Uses for FreeSWITCH 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

Chapter 6. PSTN and TDM

SIP dominates much of the telephony landscape in VoIP. The SIP protocol is also probably the most covered in FreeSWITCH books, documentation, and tutorials. Despite this apparent hegemony of the SIP protocol, there are a significant number of protocols that are used in the PSTN (public switched telephony network) and in other private and public telephony networks. Some of those protocols do not even run over IP, but use rudimentary analog audio signals to setup a call. (Yikes! This sounds almost as archaic as sending smoke signals!) One of the great powers of FreeSWITCH comes from its flexibility to interconnect different telephony protocols, from bleeding edge new media and signaling protocols such as WebRTC/Verto, to protocols as old as FXO/FXS and MFC-R2. In a sense, FreeSWITCH is a powerful translator that knows many different languages and is able to translate from one language to another quickly. These different languages are the protocols, and there are a great...

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