Audio and Video Conferencing
Audio conferencing gives people the ability to dial directly to a conferencing bridge to join the conference call, or be added by the conference call hosts themselves. This is the most cost effective conferencing solution, but includes limitations on how much of the conversation is understood by each individual, and the amount of material that can be shared within the group.
Video Conferencing includes transmission of both audio and video data by using computer networks. Video conferencing gained popularity later in the conferencing game, but it's just as applicable and widely used for many remote business meetings. Video conferencing is a technology that is able to make virtual meeting as close to a real audio-visual contact as possible. In this case the mutual understanding between participants reaches up to 90%.