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Building telephony systems with OpenSIPS 1.6 : build scalable and robust telephony systems using SIP /
"This book will give you a competitive edge by helping you to create a SIP infrastructure capable of handling tens of thousands of subscribers. You can extend the examples given in this book easily to other applications such as a SIP router, load balancing, IP PBX, and Hosted PBX as well. This...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Birmingham, U.K. :
Packt Pub.,
©2010.
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| Colección: | From technologies to solutions.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Copyright; Credits; About the Author; About the Reviewers; Table of Contents; Preface; Chapter 1: Introduction to SIP; SIP basics; SIP operation theory; SIP registering process; Server operating as a SIP proxy; Server operating as a SIP redirect; Basic messages; SIP dialog flow; SIP transactions and dialogs; The RTP protocol; Codecs; DTMF relay; Real Time Control Protocol (RTCP); Session Description Protocol (SDP); The SIP protocol and the OSI model; VoIP provider, the big picture; SIP proxy; User administration and provisioning portal; PSTN gateway; Media server
- Media Proxy or RTP Proxy for Nat traversalAccounting and CDR generation; Monitoring tools; Where you can find more information; Summary; Chapter 2: Introduction to OpenSIPS; Where we are; What is OpenSIPS?; OpenSIPS history; Main characteristics; Speed; Flexibility; OpenSIPS is extendable; Portability; Small footprint; Usage scenarios; OpenSIPS configuration file; Core and modules; Sections of the opensips.cfg file; Sessions, dialogs, and transactions; Message processing in the opensips.cfg; SIP proxy-expected behavior; Stateful operation; Summary; Chapter 3: OpenSIPS Installation
- Hardware requirementsSoftware requirements; Lab-installing Linux for OpenSIPS; Downloading and installing OpenSIPS v1.6.x; OpenSIPS console; Lab-running OpenSIPS at the Linux boot; OpenSIPS v1.6.x directory structure; Configuration files (etc/opensips); Modules (/lib/opensips/modules); Binaries (/sbin); Log files; Redirecting OpenSIPS log files; Startup options; Summary; Chapter 4: Script and Routing Basics; Where we are; Scripting OpenSIPS; Global parameters; Listen interfaces; Logging; Number of processes; Daemon options; SIP identity; Miscellaneous; Standard script for global parameters
- Modules and their parametersStandard configuration for modules and parameters; Scripting basics; Core functions; Core values; Core keywords; Pseudo-variables; Script variables; Attribute-Value Pair (AVP) overview; Flags; The module GFLAGS; Statements; if-else; Switch; Subroutes; Routing basics; Routing requests and replies; Initial and sequential requests; Sample route script; Using the standard configuration; Common issues; Daemon does not start; Client unable to register; Too many connections; Summary; Chapter 5: Adding Authentication with MySQL; Where we are; The AUTH_DB module
- The REGISTER authentication sequenceRegister sequence; Register sequence code snippet; The INVITE authentication sequence; INVITE sequence packet capture; INVITE code snippet; Digest authentication; WWW-Authenticate response header; The Authorization request header; QOP-Quality Of Protection; Plaintext or hashed passwords; Installing MySQL support; Analysis of the opensips.cfg file; Register requests; Non-Register requests; The opensipsctl shell script; The resource file-opensipsctlrc; The opensipsctlrc file; Using OpenSIPS with authentication; Enhancing the script; Managing multiple domains