At+t Corp.

At&t Intellectual Property I, L.p.

At&t Intellecutal Property Ii, L.p.

Leticia Garcia Johnson

Sekar Ganesan

Walter Paul Zahray

Richard J Sullivan

Anurag Goel

Eugene M Kancianic

Maria Walsh

Christine Yu-sha Chou Clark

Theodore Homer Vagelos

Robert Yaeger Peters Jr

Nadine A Guillaume

Christine Yu-sha Clou Clark

The present invention is directed to a method and apparatus for learning call routing information in a communication system. A switching architecture is presented. The switch may be implemented in a centralized architecture or a distributed architecture. In addition, the switch may be implemented in a variety of networks such as a circuit-switched network or a packet-switched network. The switch includes a policy server and a self-learning application server. The policy server includes routing information for routing calls across the switch. The routes for incoming and outgoing calls are analyzed as they pass through the switch. The self-learning application server uses artificial intelligence techniques and caching algorithms to learn new more-efficient routing paths or initial routing paths based on the incoming and outgoing calls. The self-learning application server then updates the policy server with the new learned routes.

Method and apparatus for self-learning of call routing information

A telephone network includes one or more end office switches not directly connected by a trunk line to a 911-type emergency tandem switch to handle emergency telephone calls. For those end office switches not so connected, a received emergency &ldquo;9-1-1&rdquo;-type telephone call is routed to a gateway switch having a trunk line connected to the emergency tandem. In the network, a first gateway switch connected to the emergency tandem switch provides the primary link, while a second gateway switch connected to the emergency tandem switch provides the secondary link. Routing information resident in end office switches is sent to the switch network to facilitate proper handling of an emergency call. The disclosed telephone network allows for less than full connectivity between gateway switches and an emergency tandem switch, while still providing a measure of redundancy to help ensure that an emergency call is completed.

Telephone network having dual gateway interconnection architecture for handling emergency services

An interexchange carrier (IXC) switch and an associated database route qualified calls dialed to local service provider (LSP) subscribers onto interconnecting facilitiies with local access settlement rates, thereby allowing a local rather than toll cost structure. The IXC switch and associated database operate with existing toll features including those features which translate a private dialed number into a public number. The IXC switch and associated database classify the call into a jurisdictional classification from a customer billing and feature application perspective, and from a routing perspective independent of the customer billing and feature application classification. The jurisdictional classification can include, example, local, toll, interLATA toll or intraLATA toll.

Method and apparatus for providing combined communication services

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Arvada, CO, United States of America

Leticia Garcia Johnson