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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 9. Faxing and T38

Faxing is here to stay. Let's admit it: however much we VoIP practitioners hate fax, however much frustration we feel, most of us must deal with fax transmission. Fax is a way to transmit images via voice circuits that were not designed to work on packet networks, and is inherently difficult to implement reliably over VoIP.

T38 is a standard that mediates between SIP and fax to achieve a reliable transmission, trying to overcoming network induced problems. FreeSWITCH implements world-class T38 (and T30, traditional fax) support, and is widely used to serve from occasional to very high traffic fax communication.

In this chapter, we will cover:

  • How traditional fax works on PSTN

  • How fax works on VoIP

  • How to configure and operate FreeSWITCH for faxing

  • Tips, tricks, and caveats to achieve workflow integration, max success rate, and fax Nirvana

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