Patent ID: 6304566
Filing Date: 2001-10-16
Classification: H04L,H04M,H04Q

Abstract:
A telecommunication system adapted for use with an IP network, such system comprising:a public service telephone network comprising a plurality of connected central offices each one thereof being connected to a plurality of subscribers serviced by the central office, at least one of the central offices, comprising:a processor coupled to:a subscriber line unit servicing the subscribers served by the central office;trunk units coupled to other ones of the central offices; andan IP network interface for converting between a central office protocol and an IP network, TCP/IP, protocol, the processor being coupled to the IP network through the IP network interface;a switching network having ports thereof fed by the subscriber line unit, the trunk units and the IP network interface for routing calls between the ports selectively in accordance with switching signals provided by the processor in the central office protocol;a database for storing a relationship between each one of the subscribers served by the central office and calling features subscribed to by such one of the served subscribers;and wherein the processor detects when a calling one of the subscribers served by the central office is accessing the central office from either the subscriber line unit or the IP network interface and addresses the database using the central office protocol to provide such calling subscriber with subscribed calling features when the calling subscriber is routed to a called party through the switching network.