Abstract: A mobile communications system comprising a plurality of mobile stations, a plurality of base stations each having in operation a radio communications link with mobile stations in a designated service area served by the base station, and a communications controller for controlling the routing of communications between mobile stations via one or more base stations in the system, the system including selection means for selecting in a group call from a first one of the mobile stations to a plurality of selected others of the mobile stations which of the service areas of the system the call will be sent to, wherein the selection means comprises a database of locations of mobile stations in the system and a processor which is operable to access the database and using information from the database relating to the location of mobile stations which are proposed to participate in the group call to select the service areas or areas of the system to which the call from the first mobile station will be routed or will be