Conferencing is related to the service, which allows creating the
conference when all participants are in different places. It gives a chance to
communicate, exchange data and correspond in real time and also allows using
the video signal that gives a chance to see one another.
IDC projected over 9 billion minutes of voice traffic to travel over worldwide packet networks in 2000, exceeding 135 billion minutes in 2004. Service revenue is projected at 1.6 billion in 2000 and 18.7 billion in 2004.