How to activate skype camera ?

No brother you don’t need any software but if you are ready to pay you need credit only, you just make an account there and login before you make any video call.

Make sure your webcam is properly connected to your computer and powered on. Then launch Skype and log in. Select the contact you wish to call using the Skype video feature and then click the"Video Call" button in the contact pane. This will automatically activate your webcam and connect you via video to the contact you selected. If the "Video Call" button is not present, this may be because Skype is not up-to-date. You will need the following things to make a video call:

One of the following: Skype 4.2 for Windows or higher, Skype 5.0 for Mac or higher, Skype on your TV and make sure you are using the latest version of Skype. A high-speed broadband connection, a webcam, a microphone and speakers, if using Windows, a Direct X 9.0c compatible video card. Good luck.