Kamailio on ubuntu

Kamailio (formerly known as OpenSER) is an open-source SIP server that can be used to build a wide range of SIP-based applications, such as VoIP servers, SIP proxies, and more. Here's a step-by-step guide on how to install and configure Kamailio on Ubuntu:

Installation

  1. Update the package list: sudo apt update
  2. Install Kamailio: sudo apt install kamailio
  3. Install the required dependencies: sudo apt install libssl-dev libpcre3-dev libmysqlclient-dev

Configuration

  1. Create a new configuration file: sudo nano /etc/kamailio/kamailio.cfg
  2. Add the following lines to the file:
    
#!KAMAILIO

Define the SIP server's IP address and port

listen=udp:0.0.0.0:5060

Define the SIP server's domain name

alias=example.com

Define the MySQL database connection

db_url="mysql://kamailio:kamailio@localhost/kamailio"

Define the SIP server's authentication mechanism

auth_db="mysql://kamailio:kamailio@localhost/kamailio"


Replace `example.com` with your domain name, and `kamailio` with your MySQL database username and password.

3. Save and close the file.
4. Restart the Kamailio service: `sudo service kamailio restart`

**Starting and stopping the service**

1. Start the Kamailio service: `sudo service kamailio start`
2. Stop the Kamailio service: `sudo service kamailio stop`
3. Restart the Kamailio service: `sudo service kamailio restart`

**Testing the installation**

1. Use a SIP client (such as Ekiga or Linphone) to connect to the Kamailio server using the following settings:
    * Host: `example.com` (or the IP address of your Kamailio server)
    * Port: `5060`
    * Username: `your_username` (e.g. `user1`)
    * Password: `your_password` (e.g. `password1`)
2. Make a test call to see if the Kamailio server is working correctly.

**Additional configuration options**

Kamailio has many configuration options that can be customized to suit your specific needs. Some common options include:

* `listen`: specifies the IP address and port that the SIP server listens on.
* `alias`: specifies the domain name of the SIP server.
* `db_url`: specifies the connection string for the MySQL database.
* `auth_db`: specifies the authentication mechanism used by the SIP server.
* `nat`: specifies the NAT (Network Address Translation) settings for the SIP server.

For more information on configuring Kamailio, refer to the official documentation: <https://www.kamailio.org/docs/>