How to Call Other Skype Users?

If the person you want to call is already in your contacts list, the simplest way to call him or her is to go to your contacts list (click on the Contacts tab to display the contacts list panel), select the contact you want by clicking on it with your mouse, and then click on the call button. This starts a call and opens a tabbed call panel for that call. Alternatively, once you have selected the contact, rather than clicking the call button, you can either double-click on the selected contact, or right-click on the selected contact and pick “Start Call” from the popup menu that appears.
If you want to call someone who is not in your contacts list, you must first enter his or her Skype username in the address bar, and then hit the enter key on your keyboard or click on the call button. This will open a tabbed call panel for that call.