A method is provided for use in a communications network in which a plurality of accesses are available to a user entity for accessing a network resource, comprising: determining a set of active rules, each rule specifying respective preferences, at least relatively, for at least some of the plurality of accesses, with potential for conflict between the rules of the set concerning which access is most preferred; deriving from the set of active rules network discovery and selection rules a new rule specifying respective preferences, at least relatively, for at least some of the plurality of accesses; and selecting an access for use by the user entity based on the new rule.