At+t Corp.

At&t Intellectual Property I, L.p.

Lucent Technologies Inc.

American Telephone & Telegraph Co., At&t Bell Laboratories

William Todd Marshall

Charles Robert Kalmanek, Jr

Kadangode K Ramakrishnan

Partho Pratim Mishra

Douglas M Nortz

Steven Michael Bellovin

Peter Onufryk

Alan Edward Kaplan

Alexander Gibson Fraser

Thomas Joseph Killian

Richard Vandervoort Cox

Norman Loren Schryer

Joseph Henry Condon

Charles Robert Kalmanek Jr

Charles Robert Kalmanek

Aviel D Rubin

Chaim Spielman

William A Aiello

Koan Seng Chong

Rachel Rosencrantz

Cormac John Sreenan

Raman Gopalakrishnan

Nikolaos Anerousis

Guy G Riddle

Kevin Brian Kealy

Harbir S Brar

Israel Rosencrantz

Network resources for a call are allocated. The network resources for the call are reserved based on a reservation. The network resources are reserved before any one network resource is committed. If the call is confirmed, then the network resources are committed.

Methods, systems, and products for voice-over internet protocol calls

Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resources is committed. The reserved network resources for the call are committed when a called party indicates acceptance for the call.

Lawfully-authorized electronic surveillance is performed. A call associated with a first party to be surveilled is verified, on a per-call basis. Packets associated with the call are sent to a second party. Copies of the packets are sent to a surveillance receiver.

Method for performing lawfully-authorized electronic surveillance

Method for performing gate coordination on a per-call basis

A call is forwarded by connecting the call between an originating location and a forwarding location without connecting the call through a terminating location. The originating location is associated with a calling party. The terminating location is associated with a dialed number. The terminating location and the forwarding location is associated with the called party. A bill for the call is apportioned between the calling party and the called party. The bill portion for the calling party is a function of the originating location and the terminating location. The bill portion for the called party is a function of the terminating location and the forwarding location.

Method for call forwarding without hairpinning and with split billing

A system and method for providing telephony and high-speed data access over a broadband access network, comprising a network interface unit (NIU) coupled to a backup local exchange carrier (LEC) line, the broadband access network coupled to the NIU, an intermediate point-of-presence (IPOP) coupled to the broadband access network, and at least one external access network coupled to the IPOP. The system also provides for a fail-safe mode in which the NIU supports the LEC line for lifeline services.

Method and system for telephony and high-speed data access on a broadband access network

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

Segmented resource reservation is performed for at least one call. network resources associated with a first network are reserved according to that network's own reservation policy and based on an indication from a calling party. For the at least one call, network resources associated with a second network are reserved according to its own reservation policy and based on an indication from a called party. The second network is coupled to the first network.

Method for performing segmented resource reservation

Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. In particular, the network resources for the call are reserved based on a reservation request. Prior to the reservation request being made, one or more operational parameters for the call are established by a gate controller and sent to a network edge device or other routing entity associated with one of the parties. An identifier, illustratively a so-called gate identification, is sent to that party. Thereafter the routing entity receives the identifier from the associated party in, for example, the aforementioned resource reservation request. The routing entity is able to use the identifier to determine the one or more parameters established for the call and to thereupon cause the call to be established&#x2014;including the reserving of resources&#x2014;in a way that is consistent with the one or more parameters.

Method for allocating network resources

Signaling messages are exchanged for a call between a calling party to a called party. A setup message for the call is exchanged through at least one gate controller. Network resources are reserved for the call based on the exchanged setup messages. An end-to-end message for the call is exchanged without the end-to-end message being routed through the at least one gate controller.

Method for exchanging signaling messages in two phases

Growing community of inventors

Chatham, NJ, United States of America

William Todd Marshall