Kamailio is a popular open-source SIP server that provides a robust and powerful platform for building real-time communication applications. In this tutorial, we will show you how to install Kamailio on Ubuntu Server.
Before installing Kamailio, update the system package lists with the following command:
sudo apt-get update && sudo apt-get upgrade
By default, Ubuntu repositories do not include Kamailio. So, you need to add the Kamailio repository to your server. To do that, use the following commands:
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xfb40d3e6508ea4c8
sudo add-apt-repository "deb [arch=amd64] http://ppa.launchpad.net/kamailio/kamailio-5.4-latest/ubuntu bionic main"
After adding the Kamailio repository, update your system's package list again:
sudo apt-get update
Now you can install Kamailio by running the following command:
sudo apt-get install kamailio
By default, Kamailio installs with basic configuration files. You need to configure Kamailio to fit your particular use case.
In this tutorial, we will use the default configuration files to get started. You can find the Kamailio configuration files in /etc/kamailio/ directory.
Before making any changes to the configuration files, it is always a good practice to make a backup of the default files:
sudo cp /etc/kamailio/kamailio.cfg /etc/kamailio/kamailio.cfg.bak
sudo cp /etc/kamailio/kamctlrc /etc/kamailio/kamctlrc.bak
With the default configuration, you can start Kamailio using the following command:
sudo systemctl start kamailio
To make sure Kamailio is running properly, run the following command:
sudo systemctl status kamailio
If Kamailio is running properly, you should see the following output:
● kamailio.service - LSB: starts kamailio
Loaded: loaded (/etc/init.d/kamailio; generated)
Active: active (running) since Mon 2021-09-13 21:08:19 UTC; 4s ag
o
Docs: man:systemd-sysv-generator(8)
CGroup: /system.slice/kamailio.service
└─5051 /usr/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg
To test your Kamailio installation, use the sngrep tool, which is a graphical SIP message analyzer. You can install this tool on Ubuntu Server by running the following command:
sudo apt-get install sngrep
Once installed, open sngrep by running the following command:
sngrep
From here, you can configure Kamailio to route SIP traffic from your softphones or other applications.
In this tutorial, we have shown you how to install Kamailio on Ubuntu Server. With the default configuration, you can start working with Kamailio, and you can customize the configuration files to suit your needs.
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