Hi Wallace
All you need to do is to make sure that your Video Camera is connected to your computer and the correct drivers installed. The you switch it on and the you have the software that you are asind for conferencing pick the Camera as a source for video. Some of these softwares will automatically detect that you have a camera and prompt you whether you need to use the camera on the the software e.g Skype does that comfortably. I have not used the software that you have listed above but am sure this is so doable coz I have done it using Skype and Webex.
Best
Jac
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Jackson Gathoni