Feature is useful for managers or senior agents of call centers. It allows monitoring phone calls between agents and clients. Silent monitoring is usually used for educating purposes, but on continuous basis in order to ensure the quality of service provided to clients and to improve productivity. At the same time, before the connection with the agent, the caller has to be informed that the conversation will be monitored with the purpose of improving service. The agents however are not aware of the fact that they are being monitored.
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.