Method for setting up a data connection between terminal devices

Abstract

A method for setting up a useful data connection between a first terminal device connected to a first connection controller and a second terminal device connected to a second connection controller is provided. In this case connection setup signaling is initiated by the first terminal device via possibly intermediate connection controllers to the second connection controller, in the course of which first useful data parameters specific to the first terminal device are transmitted to one of the connection controllers. As a result of the connection setup signaling, a connection setup message is transmitted without the first useful data parameters from the second connection controller to the second terminal device. Upon connection acceptance, a connection acceptance message is transmitted by the second terminal device from the second terminal device to one of the connection controllers, and subsequent thereto the first useful data parameters are transmitted to the second terminal device. Furthermore, following the arrival of the first useful data parameters at the second terminal device the useful data connection is set up from the second terminal device to the first terminal device.

Dependencies are inferred from the claim text.