How to configure Ekiga to connect to Asterisk on Ubuntu Desktop

In my previous article I used X-Lite 4 to connect to Asterisk. One of my commenter asked me to help installing X-Lite on Ubuntu. I started to investigate the problem, and I faced with an interesting problem: the X-Lite installer available on Macintosh and Windows platforms only. So I useed Ekiga Softphone on Linux systems. If you interested in a step by step guide for Ekiga installation and configuration with Asterisk, then press More below.