OpenSIPS is a multifunctional, multipurpose signalling SIP server. SIP (Session Initiation Protocol) is nowadays the most important VoIP protocol and OpenSIPS is the open source leader in VoIP platforms based on SIP. OpenSIPS is used to set up SIP Proxy servers. The purpose of these servers is to receive, examine, and classify SIP requests. The whole telecommunication industry is changing to an IP environment, and telephony as we know it today will completely change in less than ten years. SIP is the protocol leading this disruptive revolution and it is one of the main protocols on next generation networks. While a VoIP provider is not the only kind of SIP infrastructure created using OpenSIPS, it is certainly one of the most difficult to implement.

This book will give you a competitive edge by helping you to create a SIP infrastructure capable of handling tens of thousands of subscribers.

Starting with an introduction to SIP and OpenSIPS, you will begin by installing and configuring OpenSIPS. You will be introduced to OpenSIPS Scripting language and OpenSIPS Routing concepts, followed by comprehensive coverage of Subscriber Management. Next, you will learn to install, configure, and customize the OpenSIPS control panel and explore dialplans and routing. You will discover how to manage the dialog module, accounting, NATTraversal, and other new SIP services. The final chapters of the book are dedicated to troubleshooting tools, SIP security, and advanced scenarios including TCP/TLS support, load balancing, asynchronous processing, and more.

A fictional VoIP provider is used to explain OpenSIPS and by the end of the book, you will have a simple but complete system to run a VoIP provider.

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Spis treści

Building Telephony Systems with OpenSIPS. Build high-speed and highly scalable telephony systems using OpenSIPS - Second Edition eBook -- spis treści

• 1. Introduction to SIP
• 2. Introducing OpenSIPS
• 3. Installing OpenSIPS
• 4. Routing concepts and Language
• 5. Subscriber Management
• 6. The Web Based Control Panel
• 7. Dialplan and Routing
• 8. Dialog Management
• 9. Accounting
• 10. NAT Traversal
• 11. Implementing SIP Services
• 12. Troubleshooting tools
• 13. SIP Security
• 14. Advanced Topics