In an Internet Protocol Network Telephony (IPNT) call-routing system, a call-routing processor connected to a wide area network (WAN) for receiving and forwarding calls is adapted to receive IPNT calls and to route them to remote computer stations based on information available at the routing processor....http://www.google.com/patents/US5953332?utm_source=gb-gplus-sharePatent US5953332 - Agent-initiated dynamic requeing
