Avaya Inc.

Lucent Technologies Inc.

Charles Lewis Davidson

Mark Daniel Rajcok

Albert D Baker

Ellen Eng

Lee Alan Vallone

Joseph C Petrilla

A method is disclosed that enables an improved technique for recovering from an error scenario encountered during a call setup involving a malfunctioning media gateway and corresponding media gateway controller. The media gateway first detects a malfunction that affects a digital signal processing resource, and then proactively selects a processing resource available elsewhere at the gateway. The media gateway selects the new processing resource based on criteria including: i) the capabilities that were identified to handle the packet stream at the affected (faulty) processor; ii) the capabilities of the IP terminal originating the packet stream that is being moved; and iii) the Internet Protocol address of the affected processing resource. Advantageously, an effort is made to avoid having to inform the media gateway controller of the move, thereby minimizing any discontinuity in each packet stream and minimizing the time and processing that are required to establish the call.

Accelerated recovery during negotiation between a media gateway and a media gateway controller

A method is disclosed that enables an improved technique for recovering from an error scenario encountered during a call setup that involves a malfunctioning media gateway and the corresponding media gateway controller. The media gateway first detects a malfunction that affects a digital signal processing resource. The media gateway then proactively selects a processing resource available elsewhere at the gateway. The media gateway selects the new processing resource based on criteria that include: i) the capabilities that were identified to handle the packet stream at the affected (faulty) processor; ii) the capabilities of the IP terminal originating the packet stream that is being moved; and iii) the Internet Protocol address of the affected processing resource. Advantageously, an effort is made to avoid having to inform the media gateway controller of the move, thereby minimizing any discontinuity in each packet stream and minimizing the time and processing that are required to establish the call.

A method is disclosed that enables accelerating the removal from service of a signal processor at a media gateway. In accordance with the illustrative embodiment of the present invention, the media gateway receives an indication to remove one of its digital signal processors from service. Instead of waiting for all of the calls that are using the signal processor to come to an end, the media gateway proactively moves the packet streams from the signal processor to one or more other signal processors resident at the gateway. Advantageously, an effort is made to avoid having to inform the corresponding media gateway controller of the move, thereby minimizing any discontinuity in each moved packet stream.

Accelerated removal from service of a signal processor at a media gateway

Whether or not the provisioning of a given BRI is properly administered is determined by providing a collection of processes which exercise the known network provided supplementary services in a predetermined fashion. Specifically, a predetermined, i.e., algorithmic, process is employed to examine an administration database to determine which DSLs are to support supplementary services and, then, the process invokes a plurality of processes which attempt to activate the expected supplementary service. The basic mode of operation is to generate a connectivity context in which the supplementary service can be invoked and, then, cause the service to be invoked. ISDN messages are transmitted to the network over the D channel of the given BRI both to establish the service context and, then, to invoke the supplemental service. By analyzing the processes and ISDN messages the system can determine if the desired supplementary services are available, and the results of the analysis are recorded and made available to an operator.

Apparatus and method for testing the administration of network based

Provisioning a Central Office (CO) Basic Rate Interface (BRI) access is a complex procedure which involves hundreds, and potentially thousands, of parameters that must be asserted to configure the CO for a particular users service profile. In such a complex procedure, errors in the provisioning may be introduced which are difficult and costly to detect and correct. To solve this problem, a provisioning tool which exercises BRI lines i.e., digital subscriber lines (DSLs) from a CO to a premises switch is defined which validates that transport related restrictions and permissions are properly administered at the CO. This is achieved by the system calling itself over such lines, and varying the types (e.g., voice, digital, data, 3.1 kHz audio, et al.) of call attempts that are placed to ensure that all lines support the intended services.

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Middletown, NJ, United States of America

Charles Lewis Davidson