Building Telephony Systems with OpenSER
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- Install, configure, and troubleshoot OpenSER
- Use OpenSER to build next generation VOIP networks from scratch
- Learn and understand SIP Protocol and its functionality
- Integrate MySQL with OpenSER
- Integrate OpenSER & Asterisk
Book DetailsLanguage : English
Paperback : 324 pages [ 235mm x 191mm ]
Release Date : April 2008
ISBN : 1847193730
ISBN 13 : 9781847193735
Author(s) : Flavio E. Goncalves
Topics and Technologies : All Books, Networking and Servers, Linux Servers, Networking & Telephony, Open Source
Table of Contents
Chapter 1: Introduction to SIP
Chapter 2: The SIP Express Router
Chapter 3: OpenSER Installation
Chapter 4: OpenSER Standard Configuration
Chapter 5: Adding Authentication with MySQL
Chapter 6: Building the User Portal with SerMyAdmin
Chapter 7: Connectivity to the PSTN
Chapter 8: Call Forward and Voice Mail
Chapter 9: SIP NAT Traversal
Chapter 10: OpenSER Accounting and Billing
Chapter 11: Troubleshooting Tools
I thought the book did a great job explaining the use of various OpenSER modules and OpenSER scripting in general and it was refreshing to see this in print. Overall, this is a very good book and it deserves to do well and thank you to Flavio, the OpenSER team, and everyone at Packt Publishing! Once again, well done.
This book caters to the growing number of new users that arrive at OpenSER without an in-depth knowledge of SIP or programming. Overall this is a nice book and does what it sets out to do, which is to be a step-by-step guide for beginners with OpenSER.
Download the code and support files for this book.
Please let us know if you have found any errors not listed on this list by completing our errata submission form. Our editors will check them and add them to this list. Thank you.
Errata- 3 submitted: last submission 03 Dec 2012
Errata type: Typo | Page number: 5
In the section titled "Downloading the Example Code for the Book"
the phrase "directly downlad" should read "directly download".
Errata type: Typo | Page number: 8
RVSP Should be
Errata type: Typo | Page number: 56
Step 4 under the heading "Lab—Running OpenSER at the Linux Boot"
Edit /etc/default/openser.cfg Should be
What you will learn from this book
- An introduction to SIP
- An overview of SIP Proxies
- Compiling and installing OpenSER
- SIP Proxy default configuration
- Implementing MySQL support for authentication
- Installing the user portal (SerWEB)
- Connecting to the PSTN using a gateway
- Sending a call to voicemail
- NAT traversal using mediaproxy
- Billing with Freeradius and CDRTool
- Troubleshooting tips and tools.
OpenSER is a flexible, free open-source VoIP server based on the Session Initiation Protocol (SIP), an application-layer control (or signaling) protocol for creating, modifying, and terminating sessions with one or more participants, including internet telephone calls, multimedia distribution, and multimedia conferences.
Engineered to power IP telephony infrastructures up to large scale, OpenSER is written in pure C for Linux/Unix-like systems with architecture-specific optimizations to offer high performance; it is able to handle 4 million users on a single processor server. The server keeps track of users, sets up VoIP sessions, relays instant messages, and creates space for new plug-in applications.
It can be used on systems with limited resources as well as on carrier-grade servers, scaling up to thousands of call setups per second. It is customizable, being able to feature as fast load balancer; SIP server flavors: registrar, location server, proxy server, redirect server; gateway to SMS/XMPP; or advanced VoIP application server.
This book teaches how to develop a fast and flexible Session Initiation Protocol (SIP) server using OpenSER and shows how OpenSER can be used to implement features not available in Asterisk PBX.
This book is a well illustrated, step-by-step guide to building a SIP based network using OpenSER.
Who this book is for
This book is for readers who want to understand how to build a SIP provider from scratch using OpenSER. Telephony and Linux experience will be helpful but is not essential. Readers need not have prior knowledge of OpenSER.