If you having LifeCam problem on Skype. you need to configure the audio and video Setting in Skype. Follow this step to configure.

1] Start Your Skype.

2] You can See Tools menu on the top, click on Tools menu and then click on Options.

3] In the Navigation Panel of Skype Options window click on Audio Settings.

4] Now select your LifeCam as your default microphone. For example Microsoft LifeCam.

5] Click on Video Setting which appears in Navigation Panel.

6] Then Click Save.

7] Check your LifeCam by making call to your Friend or Relative.