Henning Westerholt

The talk will describe different approaches to optimize the performance of VoIP services based on common software like Kamailio or Asterisk. Different ways and system management tools that can help to detect potential performance bottlenecks will be presented. Furthermore several mitigation strategies and also configuration parameters that are useful in achieving a better performance are discussed. The talk is suited for VoIP developers and/or VoIP IT operations experts.

Kamailio as widely-used Open Source SIP Server is used to implement large and complex real-time communication platforms. Ensuring a good user experience, performance and quality can be a challenge in these enviroments. The talk will present different ways how to use the power of Kamailio to support you with a modern testing and debugging workflow.

Kamailio as widely-used Open Source SIP Server is used to implement large VoIP and real-time communication platforms. Ensuring a good user experience, perfomance and quality can be a challenge in these complex enviroments. The talk will present different ways how to use the power of Kamailio to support you with a modern testing and debugging workflow.

Kamailio contains different modules that support you to test and debug your configuration. Different usage examples based on real world problems are used to explain them in detail. A usual process to find problems in code is to use a debugger to step through your code. Due to the architecture of Kamailio this setup needs a bit more preparation. Additional the talk will show how to step through your configuration language execution process to debug complicated logic.

Testing config logic that involves different modules together can be challenging due to the many involved moving parts. Kamailio can support you here with a dedicated and easy to use component testing infrastructure. This test infrastructure is based on docker container, is freely available and can help also in your setup.

Ensuring a good code quality is especially important for a stable and secure VoIP server. Kamailio is using different static code analyzer and other testing methods to improve the quality of the server. The talk will give you an overview about this tools and highlight how to use them by yourself.

Kamailio is an widely used carrier-grade open source SIP server that focus on flexibility, security and performance. It offers extensive core functionality and provides over 200 extension modules. Therefore it can be challenging as developer to decide which of the available APIs to use for your development. This is especially true if you want to integrate your extension later into the project upstream source code repository.

This talk will start with a quick overview of the new functionality in the current major release 5.2. It will then highlight important changes in the last year for developers which are using Kamailio or developing extensions for it. Several code examples describes how to achieve a good security and performance. The talk will also provide guidelines about the development process, contributions acceptance and community interactions.