Mci Communications Corporation

Dsc Communications Corporation

Douglas R Cardy

Carol Waller

Ken Rambo

Paul M Bray

Charles P Shelton

The present invention is a telecommunications system having separate switch fabric and switch intelligence. The system comprises a switch fabric, a switch intelligence, and a feature processor. The switch intelligence is logically separated from the switch fabric and comprises a switch fabric proxy, a facility service, a connection manager service, and a call segment instance service. The switch fabric proxy is coupled to the switch fabric via a vendor-specific first Application Programming Interface (API). The switch fabric proxy supports a second API, which is common across all vendors, representing functions supported by the switch fabric. A facility instance, which is instantiated by a facility service using a facility model, represents the bearer and signaling facilities of a party to a call, and interacts with the switch fabric proxy via the second API to communicate with the switch fabric. The connection manager service represents the connectors for a party to a call, and interacts with the switch fabric proxy via the second API to communicate with the switch fabric. A call segment instance, which is instantiated by a call segment instance service using a call model, represents the call logic and call data for a party to a call, and interacts with the connection manager service via a third API and with the facility instance via a fourth API. The feature processor interacts with the call segment instance via a fifth API to provide the telecommunications feature.

Telecommunications system having separate switch intelligence and switch fabric

Telecommunications system having separate switch intelligence and switch

Apparatus and method for establishing a virtual private line with automatic ring down is provided. The virtual private line uses the SS7 switching network of present telephone systems coupled between the customer premises equipment of two virtual private line customers.

Apparatus and method for virtual private telephone line with automatic

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Plano, TX, United States of America

Douglas R Cardy