Abstract: A device is described which comprises a sender and a receiver configured to perform a circuit switched session, wherein the sender and the receiver are capable to also send and receive session control messages according to a session control protocol, and a controller configured to receive a specific session control message, wherein the session control message includes information for establishing a specific packet switched connection capable of supporting a specific packet services to a network node, wherein the information is encoded in a format suitable for the session control protocol, wherein the controller is further configured to obtain the information from the specific session control message, and to establish the specific packet switching connection based on the obtained information.