Distributed control and storage for a large capacity messaging system
August 10, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesData storage and retrieval structure for a message storage system Integrated message service system Electronic audio communications system with voice authentication features Automatically-effected move of a subscriber between electronic message service systems in a network Automated message retrieval system Integrated telecommunication system with improved digital voice response Multimedia mail system Patent #: 4972462 InventorsAssigneeApplicationNo. 393270 filed on 08/10/1989US Classes:379/88.26, Recording voice message from non subscriber caller370/428, Store and forward379/88.1, Including data compression379/269Distributed controlExaminersPrimary: Brown, Thomas W.Attorney, Agent or FirmInternational ClassesH04M 003/50H04Q 011/04 AbstractThe present invention provides a distributed architecture that includes multiple voice processing unit each designated as a home unit for a subscriber's messages. An incoming call is preferentially switched to the home VPU by a digital switching system under the control of a master control unit. If a master control unit determines that all lines to the home unit are busy or the home unit is otherwise unavailable, the master unit causes the digital system to switch the call to another or remote voice processing unit. The remote unit then handles the call by either locally storing a message or retrieving a message from the home unit storage over an internal message bus. If a message is stored remotely and the home unit is processing the subscriber request, the home unit can access the remote message over the internal control bus or the master control unit can switch the call routing through the switching system to the remote unit for processing of the remote message and return the switching system routing to the home unit when finished with the remote message. Each voice processing unit stores both remote and home message locally on local disc storage units. The master control unit stores subscriber related information such as the home voice processing unit for each subscriber and the location of each message for that subscriber. Comunication between the master control unit and the voice processing units is over an internal network.Other References
| |
