Abstract: Interface device for interfacing between a PLMN network and a non-PLMN network, the PLMN network being configured to recognize cellular base stations as nodes thereof through which to mediate connections to cellular mobile devices, the non-PLMN networks each comprising a plurality of access points for mediating connections to network compatible mobile devices, and for which the network compatible mobile devices are not required to be cellular devices. The interface device is configured as a node of the PLMN network to appear to the PLMN network as a standard cellular base station, and comprises functionality to make non-cellular devices connecting to the non-PLMN network and attempting to access the PLMN network through the non-PLMN network appear as cellular devices to the PLMN network.

Abstract: A multiple entity gateway for supporting cellular authentication from a non-cellular network, the gateway comprising a plurality of entities each located at a different one of a plurality of secure zones and having at least one gap between said entities across said secure zones, said gateway being configured to predefine communication signals allowed across said gap between said entities, thereby to filter out non-allowed signals, and provide secure cellular authentication for a communication originating from said non-cellular network. The gateway allows cellular users to connect to a cellular network via a wireless local area network such as a hotspot, use the services of the cellular network, the Internet and the hotspot at will, and be securely authenticated and charged through the cellular infrastructure.

Abstract: Interface device for interfacing between a PLMN network and a non-PLMN network, the PLMN network being configured to recognize cellular base stations as nodes thereof through which to mediate connections to cellular mobile devices, the non-PLMN networks each comprising a plurality of access points for mediating connections to network compatible mobile devices, and for which the network compatible mobile devices are not required to be cellular devices. The interface device is configured as a node of the PLMN network to appear to the PLMN network as a standard cellular base station, and comprises functionality to make non-cellular devices connecting to the non-PLMN network and attempting to access the PLMN network through the non-PLMN network appear as cellular devices to the PLMN network.

Abstract: A multiple entity gateway for supporting cellular authentication from a non-cellular network, the gateway comprising a plurality of entities each located at a different one of a plurality of secure zones and having at least one gap between said entities across said secure zones, said gateway being configured to predefine communication signals allowed across said gap between said entities, thereby to filter out non-allowed signals, and provide secure cellular authentication for a communication originating from said non-cellular network. The gateway allows cellular users to connect to a cellular network via a wireless local area network such as a hotspot, use the services of the cellular network, the Internet and the hotspot at will, and be securely authenticated and charged through the cellular infrastructure.

Abstract: Apparatus and method for authentication of a user, the apparatus comprising functionality, associated with a cellular Internet authentication portal, for: communicating via a secure link with an authenticatable device, using secure personalization associated with said authentication portal and said authenticatable device, typically a mobile telephone having a SIM, to verify that the communication is with the intended user, and associating the authentication with an activity request via a non-authenticatable device, thereby to authenticate the activity request of the non-authenticatable device.

Abstract: A flowmeter is provided having a housing containing a swirling fluid stream, a rotor which is rotated by the stream, and a turbine which is displaced by the stream; and having a first, transverse angularly discrete, source of magnetic flux means rotating with said rotor and a first, transverse angularly discrete, detector of magnetic flux means mounted on the housing and providing a first output signal when said first source means and said first detector means are in transverse angular alignment, and a second transverse angularly discrete source of magnetic flux means, which may be said first source means, and a flux conductor angularly displaced in conjunction with said turbine, and a second detector of magnetic flux mounted on said housing and providing a second output signal when said second source means and said conductor are in transverse angular alignment.