Nortel Networks Corporation

Vladimir V Mikhailov

Christian Constantinof

Cristian Constantinof

Michael Gawargy

Mingxing Li

Brian J N Vaughan

Service features are enabled in a next generation telephone network using a content/service provision node and subscriber access control equipment enabled to deliver content and/or service feature messaging to associated subscriber lines.

Method and apparatus for implementing an extensible range of communications services in telephone networks

A method for providing local number portability between subscriber lines served by a distributed switch call manager (DSCM) involves updating translation tables of the DSCM to direct call control messages to a media gateway (MG) that serves the ported number. The service features and service feature profile of the ported subscriber are ported concurrently with the directory number, without re-provisioning.

Method and apparatus enabling local number portability in telephone networks

A method and apparatus for reduction of call setup rate in an ATM network are described. The method and apparatus are particularly useful in ATM networks used for the transfer of bearer traffic between telephone switching offices. The method involves caching a number of switched virtual circuits (SVCs) between edge interfaces to the ATM network. A cache connection is an emulated circuit between two edge interfaces that is available and idle. The apparatus provides a central policy manager which computes and distributes cache policies to cache managers located in the edge interfaces. The cache managers manage pools of cached SVCs established between two edge interfaces. The method and apparatus reduces the number of connection setup requests sent to the ATM switches. The advantage is the ability to use ATM switches which have slow connection setup rates to provide commercially acceptable telephone services in an efficient manner. The method can also be used with fast ATM switches when they become available to balance the use of bandwidth and switch resources to reduce overall cost.

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Nepean, Canada

Vladimir V Mikhailov