A mobile station communicates with both a cellular network, by which it is assigned a mobile identification number, and to a cordless cellular base station utilizing the same cellular frequency range and communications protocol. The cordless cellular base station is preferably connected to a public switched telephone network and is assigned a landline number. The cordless cellular base station acts as a conduit between the mobile station and the public switched telephone network. When the mobile station comes within range of a cordless cellular base station, it deregisters automatically from the cellular network and register with the cordless cellular base station. Once the mobile station is communicating with the cordless cellular base station, the cordless cellular base station communicates with the cellular network to instruct the cellular network to route all calls for mobile identification number to the cordless cellular base station's landline number. In addition, all calls placed on the mobile station are sent through the cordless cellular base station to the public switched telephone network. When the mobile station severs contact with the cordless cellular base station. the mobile station registers with the regional cellular base station of the regional cellular network. The cordless cellular base station then sends a network forwarding cancellation message to the cellular network to cancel the forwarding of calls for the mobile station's identification number. Once the mobile station is registered with the regional cell, calls to the mobile stations identification number are directly routed by the cellular network to the mobile station.
This application is a Divisional application of U.S. Ser. No. 09/497,082 filed Feb. 2, 2000, which is a Divisional of Ser. No. 08/838,664, filed Apr. 9, 1997 now abandoned, which is a Continuation of Ser. No. 08/525,473 filed Sep. 8, 1995, now U.S. Pat. No. 5,675,629.
A system, wherein a mobile station can switch to an IP access protocol, whereupon data transmitted between the mobile station and a mobile services switching centre change over from a base station system, reached using radio communication, to being transmitted through an interworking unit (40) coupled in connection with an IP connection and the mobile services switching centre. When the mobile station switches to the access network, it transfers the dynamic data relating to the mobile station's state and the calls in progress (state machine) to the interworking unit.
The invention relates to a method for combining landline network and mobile telephony with the use of at least a home cell, a landline network and a mobile network, whereby the user uses a dual mode terminal that operates both in cellular mode and in cordless mode.
A mobile device supports concurrent registrations of different wireless personalities with one or more service provider networks. Potentially using a single wireless interface, the mobile device can register and maintain multiple personalities and monitor for notifications targeted to any one of these personalities.
A mobile device supports concurrent registrations of different wireless personalities with one or more service provider networks. Potentially using a single wireless interface, the mobile device can register and maintain multiple personalities and monitor for notifications targeted to any one of these personalities.
A method in an intercom system including detecting the presence of a visitor at a visitor monitor, communicating (224) information received at the visitor monitor in association with the visitor detected to a remotely located communications network gateway, communicating (232) the presence of the visitor from the communication network gateway to a remote terminal, and forwarding the information received from the communications network gateway to the remote terminal.
