A telephone network comprising a radio-based access network and at least two service networks having different specified standards, wherein the access network includes at least one port to each service net, wherein the ports are connected to at least one base station in the access network, wherein the access network also includes a radio-based access network part capable of connecting the at least one base station to a radio unit in the access network, wherein the radio unit is registered as belonging to one of the service networks, the so-called home network of the radio unit, wherein a signal carrier in the access network has a first terminal point in the radio unit and a second terminal point in the port which connects the access network with the home network, and wherein the port functions to combine the signal carrier in the access network with a signal carrier in the home network.