Patent ID: 6449270
Filing Date: 2002-09-10
Classification: H04L,H04M,H04Q

Abstract:
An Internet Protocol Network Telephony (IPNT) call-routing system for routing incoming calls from a network service control point (SCP) to individual ones of remote computer stations in call centers, comprising:a wide area network (WAN) connection for receiving and forwarding incoming Internet Protocol Network Telephony (IPNT) calls; and an SCP, including a call-routing processor coupled to the WAN and to the call centers, the call-routing processor of the SCP receiving and using information about availability of resources at the call centers in routing IPNT calls; wherein the call-routing processor of the SCP, upon routing a selected IPNT call to a selected one of the call centers, sets a busy semaphore for the call destination, and upon re-routing the selected call in the event expected confirmation of completion is not received, resets the busy semaphore to free.