A system and method for protecting the integrity of subscribers in a process of positioning a mobile terminal ( 2 b) via a location based service client ( 5 ), in relation to the client ( 5 ), in a communications system. A gateway mobile location centre ( 4 ) is adapted to: receive a request for an alias identity for an entity ( 1 a) initiating to be positioned; assign an alias identity for the entity ( 1 a) and the subscriber ( 2 a); store the alias identities for the entity ( 1 a) and the subscriber ( 2 a) in association with the subscriber numbers; receive a positioning request from the client ( 5 ) for the subscriber ( 2 a), wherein the request includes the alias identity for the subscriber ( 2 a); look up the subscriber number matching the alias identity; perform a positioning request for the mobile terminal in a n associated network ( 3 ); and send a response including location information received from the network ( 3 ) and the alias identity to the client ( 5 )
展开▼
