Method for providing charging attributes in a communication system comprising the steps of: receiving, from a service node, a service authorization request by a service authorization node in a first network in response to a mobile station generating a request for a particular service, where the mobile station is roaming in a first network that comprises the service authorization node; and characterised by comprising: transmitting, by the service authorization node, a charging attribute request to a request receiver in a home network; determining at the request receiver which charging attribute storage node of a plurality of charging attribute storage nodes in the home network can satisfy said charging attribute request; transmitting charging attribute information from the determined charging attribute storage node of the plurality of charging attribute storage nodes associated with the home network of the mobile station to the service authorization node, the service charging attribute information comprising charging attributes of the mobile station for use by the first network in providing charging data to the home network in order to charge an end-user of the mobile station of the particular requested service; and transmitting a service authorization reply by said service authorization node. receiving, from a service node, a service authorization request by a service authorization node in a first network in response to a mobile station generating a request for a particular service, where the mobile station is roaming in a first network that comprises the service authorization node; and characterised by comprising: transmitting, by the service authorization node, a charging attribute request to a request receiver in a home network; determining at the request receiver which charging attribute storage node of a plurality of charging attribute storage nodes in the home network can satisfy said charging attribute request; transmitting charging attribute information from the determined charging attribute storage node of the plurality of charging attribute storage nodes associated with the home network of the mobile station to the service authorization node, the service charging attribute information comprising charging attributes of the mobile station for use by the first network in providing charging data to the home network in order to charge an end-user of the mobile station of the particular requested service; and transmitting a service authorization reply by said service authorization node. transmitting, by the service authorization node, a charging attribute request to a request receiver in a home network; determining at the request receiver which charging attribute storage node of a plurality of charging attribute storage nodes in the home network can satisfy said charging attribute request; transmitting charging attribute information from the determined charging attribute storage node of the plurality of charging attribute storage nodes associated with the home network of the mobile station to the service authorization node, the service charging attribute information comprising charging attributes of the mobile station for use by the first network in providing charging data to the home network in order to charge an end-user of the mobile station of the particular requested service; and transmitting a service authorization reply by said service authorization node.