The Web and Internet Conference Calling
An interesting feature of Internet conference calling is how web-enabled conferencing adds the power and punch of the Internet, turning the conference call into a combined web and audio experience that enhances the impact to a conference and adds flair. With the click of a mouse button, the customer gains complete control of the conference. Internet conference calling allows the user to conduct, arrange, lead and be in charge of the audio conference straight from their computers.

From: http://www.conferencecallaudiovideo.info/internet_conference_calling.php