At+t Corp.

AT&T Intellectual Property I, LP

Raman Gopalakrishnan

Charles D Cranor

Peter Onufryk

Charles Robert Kalmanek, Jr

Cormac John Sreenan

Jacobus Erasmus Van Der Merwe

David Hilton Shur

Sandeep Sibal

Laurence W Ruedisueli

Matthew D Green

Mike Chan

Kadangode K Ramakrishnan

Partho Pratim Mishra

William Todd Marshall

Alan Edward Kaplan

Nikolaos Anerousis

The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.

Method for content-aware redirection and content renaming

A packet telephony appliance includes a Euphony network processor that integrates networking and DSP functions to provide a low cost and efficient solution in building a networked appliance. In particular, a Euphony ATM Telephone (EAT) is built around the Euphony network processor. The EAT uses a real-time operating system to provide predictable processing and networking support. The EAT implements IObufs, which provides a unified buffering scheme that allows zero-copy data movement. Furthermore, the EAT uses an Event Exchange (EVX), which provides a flexible mechanism for event distribution, allowing software modules to be composed together in an extensible manner. EVX and IObufs are used together to provide highly efficient intra-appliance communication. The EAT provides a platform that can evolve gracefully to support new protocols, advanced telephony services and enhanced user interfaces.

Packet telephony appliance

An event exchange mechanism for software systems is disclosed that utilizes a receiver-driven, publisher-subscriber model to overcome various problems in the prior art. The event exchange has a flexible addressing scheme so that a sending module need not be aware of all of its receiving modules. Yet, the event exchange still provides the ability to multicast messages to interested receivers. The system is also uniform since both data and control information can be exchanged using the same mechanism. Mechanisms for flow control are also provided so that a receiver can exert backpressure on a sender; this is especially useful for the transfer of multimedia data.

Method and apparatus for unifield control and data event exchange in a software system

A method for performing communications over a network comprises receiving a user record for a first user, receiving a query from a second user with regard to the first user, and sending, to the second user, as a response to the query, a call-handling profile.

Method and apparatus for communication services on a network

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San Jose, CA, United States of America

Raman Gopalakrishnan