Abstract: System and method for enabling proximity-triggered messaging in certain coverage areas for social networks and communities-based services. The system includes at least one local unit with cellular radio transceiver, located within a corresponding coverage area. The cellular transceiver broadcasts a LAC different from any other LAC of the radio cells in the surroundings; establishes a Location Update dialogue with any mobile phone answering to the LAC broadcast, obtaining its IMSI number; sends a Location Updating Reject message to each mobile phone whose IMSI number has been obtained; and sends said IMSI number to a central unit. The central unit obtains, for each IMSI number, one valid identity in a community-based service; and provides at least one social network server associated to the corresponding valid on-line identity with the valid identity.

Abstract: System and method for enabling proximity-triggered messaging in certain coverage areas for social networks and communities-based services, the system comprising: at least one local unit with cellular radio transceiver means, located within a corresponding coverage area and configured for: broadcasting a LAC different from any other LAC of the radio cells in the surroundings; establishing a Location Update dialogue with any mobile phone answering to the LAC broadcast, obtaining its IMSI number; sending a Location Updating Reject message to each mobile phone whose IMSI number has been obtained; sending said IMSI number to a central unit; the central unit configured to: obtain, for each IMSI number, one valid identity in a community-based service; provide at least one social network server associated to the corresponding valid on-line identity with the valid identity.

Abstract: System and method for local marketing at the point of sale, the system comprising: at least one local unit (1,1?,1?) with cellular radio transceiver means, located at a local marketing area within a coverage area (4,4?,4?), configured for: broadcasting a LAC different from any other LAC of the radio cells in the surroundings; establishing a Location Update dialogue with any mobile phone (3,3?,3?) answering to the LAC broadcast, obtaining its IMSI number; sending a Location Updating Reject message to each mobile phone (3,3?,3?) whose IMSI number has been obtained; sending said IMSI number to a central unit (2); the central unit (2), configured to: obtain, for each IMSI number, a user identity useful to advertisers; receive requests from at least one advertiser (9,9?,9?) for capturing user identities in local marketing areas; determine the advertisers (9,9?,9?) interested in the user identities received, and provide (20) them to the corresponding advertiser (9,9?,9?).

Abstract: A system for monitoring road usage by vehicles having associated vehicle terminal units operable to communicate with a cellular telecommunications network, the system comprising: an identity capture unit configured to broadcast, in the licensed spectrum of at least one cellular telecommunications network operator, a Location Area Code (LAC) different from any other LAC of the radio cells of the cellular telecommunications network in the surroundings; said identity capture unit establishing a Location Update dialog with each associated vehicle terminal unit answering to the LAC broadcast; and obtaining from each answering vehicle terminal unit at least one unique identifier; and a subscriber validation unit, which in operation checks the captured identifiers against those of subscribers of the road usage charging service and, in case of match, reports the identifier capture event. That event may be used as a trigger for the systems of the road usage charging service.