Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent
1995-06-15
1998-04-07
Zele, Krista
Telephonic communications
Centralized switching system
Switching controlled in response to called station...
379220, 379221, H04M 700
Patent
active
057374066
ABSTRACT:
The invention relates to a system for handling connections in a telecommunication system including digital, computer controlled telephone exchanges and subscribers connected thereto, where the connection handling is distributed out in the network. Physical connections between subscribers are handled under the control of abstract connection models, where, in an object oriented system a number of different, mutually independent user processes are provided in such a manner that one or more of the processes under control of one of more processors control those connections which are necessary to achieve e.g. reservation of a connection path, connection set up, through connection and release of complete connection, and redirection of connections. The invention solves the problem of coordinating a number of processes by way of a set of functional objects which allow each user to control and change a connection without coordination with other users. The system uses connection models and supports the setting up of connections in a communication network. The connection models include port objects representing connection end ports and connection objects representing abstract connections between end ports. When the objects and models have been linked together in a chain, the connection can be physically set up via a connection set up function.
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Aurell K. S. Tomas
Dagberg L. J. Ola
Telefonaktiebolaget LM Ericsson
Wolinsky Scott
Zele Krista
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