"First up, we'll walk through the straightforward process of installing the latest stable version of Kamailio on Debian 12 using the APT package manager. We'll explore the Debian repositories, ensure our system is ready, and execute the commands needed to have Kamailio up and running. This is a quick and efficient way to get started with Kamailio on Debian.Then we continue with the installation of Kamailio from the source code, on Rocky Linux 9. We'll download the source code, install prerequisites, and execute the compilation and installation steps. This method provides flexibility and customization for your Kamailio setup.