At&t Intellectual Property I, L.p.

Kevin Brian Kealy

William Todd Marshall

Chaim Spielman

Koan Seng Chong

Rachel Rosencrantz

Peter Israel Rosencrantz

Harbir S Brar

Israel Rosencrantz

The present invention provides for improved security in a VoIP architecture. In accordance with an embodiment of the invention, a system for providing VoIP service to a user domain having user accessible equipment includes a first domain having VoIP service provider equipment and a second domain having at least one border element communicating with the service provider equipment and the user accessible equipment to enable communications between the service provider equipment and the user accessible equipment. The user accessible equipment is prevented from directly communicating with the service provider equipment.

Method and apparatus for providing secure voice/multimedia communications over internet protocol

Trust ratings are embedded in certificates of calling devices in a Voice over Internet Protocol (VoIP) communications system. A method of managing trust ratings involves automatically accumulating complaints concerning VoIP calls initiated from calling devices, and comparing respective quantities of accumulated complaints associated with each calling device. When a quantity of accumulated complaints associated with a given calling device exceeds a given threshold, a trust rating of the given calling device is reduced. In subsequent VoIP calls the given calling device attempts to place, the reduced trust rating is included in the call request so that the subsequent calls are subject to more austere call screening operations than calls having the unreduced trust rating. Call recipients thus affect the calling device's trust rating simply by entering complaints associated with received calls. The method effectively combats spam over Internet telephony (SPIT) through participation of called parties.

Arrangement for managing voice over IP (VoIP) telephone calls, especially unsolicited or unwanted calls

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Benson, AZ, United States of America

Kevin Brian Kealy