The present invention relates to a system operable to identify and access information about a user (109) of a distributed communication system. The system comprises at least one service device (108), and at least one access device (105a) operable to provide access to said distributed communication system. The system also comprises at least one control means (101; 103) connected to said at least one access device (105a) and to said at least one service device (108), a to said at least one access device (105a) connected identification device (113) operable to identify an address of a specific user (109). The system also comprises at least one storage device (102; 104) connected to said at least one control means (101; 103), and a to said at least one control means (101; 103) connected cache means (111) operable to store mappings of said addresses and identifications for said users (109).