At+t Corp.

Avaya Technology LLC

Barbara Patrice Havens

Robert William Gebhardt

Benny J Ellis

Margaret A Burd

Timothy J Lefoley

Janice A Jones

Jeremy R Hutt

Gary J Mayer

Jennifer T Fitzgerald

The invention is directed to an architecture that includes a first queue , a first queue reader that reads data entities in the first queue, and a first queue writer that writes data entities to the first queue. The architecture is able to periodically set one or more backup administration parameters equal to administration parameter(s) associated with the first queue and, when the first queue is restored, copy data entities from backup storage to the first queue and set the administration parameter(s) to the corresponding backup administration parameter(s).

System and method for using multi-headed queues for bookmarking in backup/recover scenarios

A fault-tolerant call-processing adjunct processor comprises a redundant, duplicated, service unit provisioning and maintenance processor), a duplicated LAN connected to both service units, and plurality of served units (voice-processing processors) each connected to both LANs. Each service unit and each served unit has a duplicate copy of mission-critical information (customer records and commands). Both service units are continuously exercised by operating in an active-active configuration. The service units alternate the use of the LANs, thereby continuously exercising both LANs and providing independent duplicate sources of the mission-critical information to the served units. All sending units rely on having their mission-critical communications timely acknowledged by all receiving units. Served units retry with the other service unit those communications that failed with a preferred service unit. All units store failed communications for subsequent retry. Served units either send communications (alarms) to both service units, or rely on service units to exchange communications (call measurements) received from the served units, to ensure that both service units are in possession of the same information.

Fault-tolerant processing system architecture

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Broomfield, CO, United States of America

Barbara Patrice Havens