The configuration of call queue is set in a way that the agent should pick up and answer the call, because of the forced connection the called party and the caller will be connected automatically. This function is mostly used in call service centers.
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.