Multiplex communications – Pathfinding or routing – Store and forward
Patent
1997-12-22
2000-10-24
Felber, Joseph L.
Multiplex communications
Pathfinding or routing
Store and forward
370524, 379230, H04L 1254, H04J 312
Patent
active
061378062
ABSTRACT:
In an intelligent network comprising a plurality of Service Signalling Points (SSP) and a Service Control Point (SCP), improved handling of overload conditions at the Service Control Point is provided by means of a Network Signalling Point interposed between the SSPs and the SCP. The Network Signalling Point (NSP) has a store for storing a copy of each message the NSP sends to various Point Codes, including that of the SCP; and service software for monitoring its links based upon associated Point Codes. If the NSP does not receive, within a preset time period, a response to a message sent to a particular destination Point Code via a particular link that is intact, the service software module will retrieve the stored copy of the message, replace the original destination Point Code with an alternative Point Code, and route the modified message to the alternative Point Code. The NSP may also filter Automatic Code Gapping messages sent from the Service Control Point to Service Switching Points in dependence upon messaging network conditions. The NSP may also generate its own Automatic Code gapping messages and send them to selected Service Switching Points.
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Felber Joseph L.
Northern Telecom Limited
Shannon John P.
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