| Document Type
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BL
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| Record Number
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982329
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| Doc. No
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b736699
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| Main Entry
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Goncalves, Flavio E.,1966-
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| Title & Author
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Building telephony systems with OpenSER : : a step-by-step guide to building a high-performance telephony system /\ Flavio E. Goncalves.
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| Publication Statement
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Birmingham :: Packt Pub.,, ©2008.
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| Page. NO
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1 online resource (303 pages) :: illustrations
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| ISBN
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1281348066
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: 1847193730
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: 1847193749
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: 6611348069
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: 9781281348067
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: 9781847193735
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: 9781847193742
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: 9786611348069
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9781847193735
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| Notes
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Includes index.
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Title from title screen.
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| Contents
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Table of Contents; Building Telephony Systems with OpenSER; Building Telephony Systems with OpenSER; Credits; About the Author; About the Reviewers; Preface; What This Book Covers; What You Need for This Book; Who This Book Is For; Conventions; Reader Feedback; Customer Support; Downloading the Example Code for the Book; Errata; Questions; 1. Introduction to SIP; SIP Basics; SIP Proxy in the Context of a VOIP Provider; SIP Operation Theory; SIP Registration Process; Server Operating as a SIP Proxy; Server Operating as a SIP Redirect; Basic Messages; SIP Dialog Flow.
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4. OpenSER Standard ConfigurationWhere Are We?; Analyzing the Standard Configuration; Using the Standard Configuration; Routing Basics; Transactions and Dialogs; Initial and Sequential Requests; Routing in a Context of a Transaction; Routing in the Context of a Dialog; Lab-Tracking a Complete Dialog; Lab-Running Stateless; Lab-Disabling record-route; Summary; 5. Adding Authentication with MySQL; Where Are We?; The AUTH_DB Module; The REGISTER Authentication Sequence; Register Sequence (Packets Captured by ngrep); Register Sequence Code Snippet; The INVITE Authentication Sequence.
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Core and ModulesSections of the File openser.cfg; Sessions, Dialogs, and Transactions; openser.cfg Message Processing; SIP Proxy-Expected Behavior; Stateful Operation; Differences between Strict Routing and Loose Routing; Understanding SIP and RTP; Summary; 3. OpenSER Installation; Hardware Requirements; Software Requirements; Lab-Installing Linux for OpenSER; Downloading and Installing OpenSER v1.2; Lab-Running OpenSER at the Linux Boot; OpenSER v1.2 Directory Structure; Configuration Files (etc/openser); Modules (/lib/openser/modules); Binaries (/sbin); Log Files; Startup Options; Summary.
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INVITE Sequence Packet CaptureDigest Authentication; WWW-Authenticate Response Header; The Authorization Request Header; QOP-Quality of Protection; Installing MySQL Support; openser.cfg File Analysis; The Openserctl Shell Script; Openserctl Resource File; Openserctlrc File; Using OpenSER with Authentication; Enhancing the Script; Managing Multiple Domains; Alternative Routes; Register Requests (route[2]); Non-Register Requests (route[3]); Managing Calls Coming from Our Domain; Inbound-to-Inbound-route[10]; Inbound-to-Outbound-route[11]; Outbound-to-Inbound-route[12].
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SIP Transactions and DialogsThe RTP Protocol; Codecs; DTMF-Relay; Real Time Control Protocol (RTCP); Session Description Protocol (SDP); The SIP Protocol and the OSI Model; The VoIP Provider ""Big Picture""; SIP Proxy; User, Administration, and Provisioning Portal; PSTN Gateway; Media Server; Media Proxy or RTP Proxy for Nat Traversal; RADIUS Accounting; CDRTool Rating; Monitoring Tools; Where You Can Find More Information; Summary; 2. The SIP Express Router; Where Are We?; What is the SIP Express Router?; What Software to Use, SER or OpenSER?; Usage Scenarios; OpenSER Architecture.
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| Abstract
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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 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.
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| Subject
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Computer network protocols.
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| Subject
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Internet telephony.
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Computer network protocols.
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| Subject
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COMPUTERS-- System Administration-- Email Administration.
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| Subject
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Internet telephony.
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| Dewey Classification
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004.69/5
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| LC Classification
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TK5105.8865.G65 2008eb
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