Northern Telecom Limited

Nortel Networks Corporation

Ronald Schwartz

Wayne Robert Heinmiller

Gordon Lester Rainey

Allan Melnyk

Sohale Aziz Mufti

Douglas Gordon Turner

Robert Curtis Schoenstedt

James F Bartoszewicz

LaVerne Bentley Shook

Stephen Dean Barnes

Marianne Jo Stanke

Pat Carstensen

Sylvain Archambault

Krishnamurthy Giridharagopal

Marie-Ellen Hull

To provide station number portability within a cluster of switches interconnected in a communication switching network each switch within the cluster is provided with two translation tables stored in the main memory of the switch processor. When digits are dialled to connect a station with another station the office code of the dialled station is extracted and if this is an office code of any switch in the cluster the first translation table instructs that a translation be carried out in the second table. The second table contains all the station numbers which are in the cluster and relates these numbers either to a physical line or to an instruction to route to another switch. When a station is 'ported' i.e., physically disconnected from one switch and reconnected to another switch, a minor change is made to the second translation table of the two switches to retain portability.

Number portability for a cluster of switches

A network service access system and method for intelligent networks uses a network element called a mediation point between network service switching points (SSP) and third party service provider service control points (SCP). The mediation point acts as a gateway to the AIN network for the service provider SCPs. The mediation point at the boundary of the intelligent network has ports for connection to service providers SCPs and a list of SSPs within the intelligent network to which each respective service provider is allowed access.

Mediated access to an intelligent network

A system for providing telephone number portability within a structurally distributed telephone system by providing an address capture database (ACDB) for local exchange carriers (LECs) wherein a new number (NN) is stored in the ACDB if the NN is a physical address served by a LEC and the NN corresponds to a dialled directory number (DN) ported into or located within the LEC.

Method of using dynamic database to improve telephone number portability

Growing community of inventors

Nepean, Canada

Ronald Schwartz