System and method for restricting mobility of cellular...

Details System and method for restricting mobility of cellular... System and method for restricting mobility of cellular...

H - Electricity

04

Q

H04Q 7/38 (2006.01) H04M 3/38 (2006.01)

Patent

CA 2379843

A cellular telephone is restricted to using only predetermined cells. The first time (306) the telephone is used, it learns (308) the identity of the cell which services it and stores that identity in the telephone. Thereafter, a request (314) to be serviced by a cell whose identity is not stored in the telephone will be denied (316) unless it is to the service provider or to emergency personnel. If it is to the service provider, then the service provider can determine (318) whether the requested cell should be in the telephone as an approved cell.

Selon l'invention, un téléphone cellulaire voit son utilisation restreinte à certaines cellules prédéfinies uniquement. Lors de sa première (306) utilisation, le téléphone apprend (308) l'identité de la cellule dont il dépend et la mémorise. Ainsi, toute demande (314) ultérieure destinée à être traitée par une cellule dont l'identité n'est pas connue du téléphone sera rejetée (316) à moins que ladite demande soit adressée au fournisseur d'accès ou à du personnel d'urgence. S'il s'agit du fournisseur d'accès, ce dernier peut déterminer (318) si la cellule demandée devrait être mémorisée au niveau du téléphone comme cellule approuvée.

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