Patent ID: 6600925
Filing Date: 2003-07-29
Classification: H04W

Abstract:
A method of integrating cordless telephone networks each capable of carrying a call independently of a cellular mobile network into the cellular mobile telephone networks, the cellular mobile telephone network using dual system mobile stations which support communication over the cordless telephone network as well as over the mobile telephone network, the cordless telephone network routing calling via a public network exchange and the mobile telephone network routing calls via mobile switching centers, the method comprising:assigning, with the mobile telephone network, a characteristic location area to each cordless telephone network that can be used by each of a plurality of subscribers, each subscriber being qualified to use at least one cordless telephone network; assigning a subscriber-specific calling number to each location area; performing a check constantly to determine whether or not the subscriber is in the location area of a cordless telephone network which the subscriber is authorized to use; initiating, by the mobile station in the mobile telephone network, a location update procedure if the mobile station is in a location serviced by one of the cordless telephone networks and the subscriber is entitled to use the respective network; and establishing a connection automatically or by choice over either a cordless telephone network routed by a public switched telephone network or over the mobile telephone network when there are incoming calls over the mobile telephone network by a mobile services switching center on the basis of the calling number assigned to that location area.