Method of and apparatus for managing call resources in switching

Details Method of and apparatus for managing call resources in switching Method of and apparatus for managing call resources in switching

1996-12-23

1999-10-26

Wolinsky, Scott

Telephonic communications

Centralized switching system

379203, 379268, H04M 300

Patent

active

059741341

ABSTRACT:
A method and an apparatus for managing call resources, which can contribute to an improvement in the performance and stability of systems to which the method and apparatus are applied. Call processors are connected to a shared library via a resource manager which is internally provided with a resource management table for storing permanent processor ID numbers of the call processors and resource allocation information. The call manager controls access to the shared library in association with requests of the call processors for an allocation or release of the resources in such a manner that the access is given for only the stored permanent process ID's. When a request is made to release call resources currently in use, the call manager determines whether or not the process ID of a call process associated with the request for the release coincides with the process ID of the call process currently using the stored call resources. When the process ID's do not coincide with each other, the call manager rejects the request for the release and notifies the operator of such a rejection.

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