Go to ekiga website and download the latest version of the application.
1. Click on "Edit - Accounts"
2. Choose "Add a sip account"
3. Enter the following settings:
Name: 111111
Gatekeeper: sip.zadarma.com
User: Your sip number (for example 111111) from your personal account
Authentication user: your sip number (for example 111111) from your personal account
Password: Your sip password of from your personal account
Name: 1234-100
Gatekeeper: pbx.zadarma.com
User: Your PBX extension number (for example 1234-100) from your personal account
Authentication user: Your PBX extension number (for example 1234-100) from your personal account
Password: Your PBX extension number password from your personal account
Check the "Enable account" box and press "OK".
4. Status should appear as "Registered"
Ekiga is set and you can make calls.