NETWORK SYSTEM FOR RETRIEVAL OF CONFIGURATION RELATED DATA

There is provided a network system (100) comprising, in accordance with an embodiment, a lookup unit (104), a clearing unit (110) having a storage device and a client unit (102). The client unit (102) is adapted for providing user-related data (106) to the lookup unit (104), wherein the user-related data (106) is based on user-specific data, the user-specific data is associated with a user, and the user-related data (106) allows for unambiguous identification of the user-specific data. Further, the lookup unit is adapted for retrieving identification data (114) from the clearing unit (110) by using the user-related data (106), wherein the identification data (114) is associated with the user-specific data (106), and the clearing unit (110) is adapted for retrieving from the storage device the identification data (114) associated with the user-specific data. The clearing unit (110) is adapted for providing the identification data (114) to the lookup unit (104). The lookup unit (104) is adapted for retrieving configuration related data (115) for a service provided to the user, wherein the configuration related data (115) are retrieved by using the identification data (114).