Method for using a user equipment in a coverage area of a first public land mobile network, the first public land mobile network serving as a visited public land mobile network (VPLMN) to the user equipment, the user equipment having a second public land mobile network as a home public land mobile network, HPLMN, wherein the second public land mobile network comprises a profile exchange function network node, PXF and a control dispatch function network node, CDF, wherein the method comprises the following steps: - requesting for a predetermined roaming service requested by the user equipment camping on the first public land mobile network; - detecting by the profile exchange function network node, PXF, that the user equipment is associated with the predetermined serviceprovider for the predetermined roaming service; - checking by a profile exchange function logic of the profile exchange function network node, PXF, whether the method should be applied by checking whether a contract with a predetermined service provider is active or whether only a contract with the operator of the second home public land mobile network is active; - in case the contract with a predetermined service provider is active: - returning by the profile exchange function network node, PXF, to the VLR, Visitor Location Register, of the visited Mobile Switching Center, MSC, of the first public land mobile network a dedicated Intelligent Network address, O-CSI Originating CAMEL Subscription Info, of the CDF or a specific SMS-CSI address of the CDF; and - addressing and transferring the roaming service request of the user equipment to the CDF; - determining by the CDF the predetermined service provider associated with the user equipment, and - transferring the roaming service request to the predetermined service provider, wherein a roaming charges settlement between the second public land mobile network and the predetermined service provider is based on a wholesale approach. - requesting for a predetermined roaming service requested by the user equipment camping on the first public land mobile network; - detecting by the profile exchange function network node, PXF, that the user equipment is associated with the predetermined serviceprovider for the predetermined roaming service; - checking by a profile exchange function logic of the profile exchange function network node, PXF, whether the method should be applied by checking whether a contract with a predetermined service provider is active or whether only a contract with the operator of the second home public land mobile network is active; - in case the contract with a predetermined service provider is active: - returning by the profile exchange function network node, PXF, to the VLR, Visitor Location Register, of the visited Mobile Switching Center, MSC, of the first public land mobile network a dedicated Intelligent Network address, O-CSI Originating CAMEL Subscription Info, of the CDF or a specific SMS-CSI address of the CDF; and - addressing and transferring the roaming service request of the user equipment to the CDF; - determining by the CDF the predetermined service provider associated with the user equipment, and - transferring the roaming service request to the predetermined service provider,