Building Telephony Systems with OpenSER

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Flavio E. Goncalves

A step-by-step guide to building a high performance Telephony System

There is a newer edition of this title available:

Building Telephony Systems with OpenSIPS 1.6

Available Now.

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

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Sample Chapter Building the User Portal with SerMyAdmin [1.2 MB]
Table of Contents Book Details

Language English
Paperback 324 pages [191mm x 235mm]
Release date April 2008
ISBN 1847193730
ISBN 13 978-1-847193-73-5
Author(s) Flavio E. Goncalves
Topics and Technologies Networking & Telephony, Open Source, Linux Servers

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.

In Detail

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.

Read the full Table of Contents for Building Telephony Systems with OpenSER

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.

Approach

This book is a well illustrated, step-by-step guide to building a SIP based network using OpenSER.

Who this book is written 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.

Author(s)

Flavio E. Goncalves

Flavio E. Goncalves is CEO of V.Office Networks in Brazil, a consulting company dedicated to Networks, Security and Telecommunications and a training center since its foundation in 1996. He has almost 26 years of experience in computers and networks and had been certified as Novell MCNE/MCNI, Cisco CCSP/CCNP/CCDP and Digium dCAP. Recently he is running, along with Bogdan Andrei Iancu, the OpenSIPS Bootcamp, an intensive training and certification program for OpenSIPS administrators. He is one of the founders of the OpenSIPS foundation.