Telecommunications system
First Claim
1. A method of creating virtual dedicated connections between parties to a packet-switched system, said method comprising:
- populating a session parameter database with parameters for permitted sessions, and controlling access to a packet-switched call routing system such that, when a session request is set up between a first party and a second party, the session is connected only if specified parameters of the requested session, including identifies of the first party and the second party, have previously been stored in the session parameter database;
wherein said populating the session parameter database is controlled such that the total capacity required by the permitted sessions whose parameters are stored in the database does not exceed a predetermined value; and
wherein the capacity required to connect sessions meeting the parameter sets defined in the session parameter database is made available for use by general traffic when not required for sessions meeting the parameter set.
1 Assignment
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Accused Products
Abstract
Virtual dedicated voice connections between parties to a packet-switched system can be created by reserving capacity for such connections in the packet-switched system. The capacity reservable by any one party is limited to prevent over-subscription of resources in the packet switched. The system incorporates a call admission control processor for controlling access to the packet-switched call routing system such that a voice call attempt is successful only if capacity for such a dedicated connection has previously been reserved. The capacity reserved for the virtual connections is made available for use by other traffic when not required for voice sessions.
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Citations
14 Claims
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1. A method of creating virtual dedicated connections between parties to a packet-switched system, said method comprising:
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populating a session parameter database with parameters for permitted sessions, and controlling access to a packet-switched call routing system such that, when a session request is set up between a first party and a second party, the session is connected only if specified parameters of the requested session, including identifies of the first party and the second party, have previously been stored in the session parameter database; wherein said populating the session parameter database is controlled such that the total capacity required by the permitted sessions whose parameters are stored in the database does not exceed a predetermined value; and wherein the capacity required to connect sessions meeting the parameter sets defined in the session parameter database is made available for use by general traffic when not required for sessions meeting the parameter set. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A session control system for a packet-switching system, said call control system comprising:
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a session parameter database, a data entry portal for populating the session parameter database with permitted session parameters, including the identifies of permitted combinations of calling party and called party, and a session admission control processor for processing session requests received from calling parties, the session admission control processor comprising; means for receiving a request from a first party to set up a session to a second party, data retrieval means for cooperating with the session parameter database to identify whether parameters corresponding to the session request have been stored in the session parameter database, and session connection means for completing the connection if the specified parameters of the requested session have previously been stored in the session parameter database; wherein the session parameter database has capacity-limiting means controllable such that the total capacity required by sessions whose parameters are stored in the session parameter database does not exceed a predetermined value; and wherein the capacity required to connect sessions meeting parameter sets defined in the database is made available for use by general traffic when not required for sessions meeting the session parameter set. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification