Multiplex communications – Wide area network – Packet switching
Patent
1992-08-17
1994-11-29
Harrell, Robert B.
Multiplex communications
Wide area network
Packet switching
370 16, 370121, 379207, 379279, 379221, 3642381, 3642425, 364937, 3642222, 364DIG1, 364DIG2, 3642223, H04L 2900, H04M 700
Patent
active
053697596
ABSTRACT:
An apparatus and method for matching information between a first and a second processor to preserve a call includes determination units each provided in the respective processor. When a communications link experiences a fault, the determination units determines whether or not information items, respectively, in first and second processors, are to be preserved. A transmission unit notifies a match unit in a second processor of a determination of the call preservation. The match unit in the second processor compares the received information with an information to be preserved by the information of the second processor, and notifies the first processor of a result of a match or a non-match. A first initialization unit and a second initialization unit initialize their information items, respectively in the first and second processors, based on the result.
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Fujitsu Limited
Harrell Robert B.
Philipp Timothy L.
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