Patent ID: 7333494

Claim:
A method for setting up a connection, comprising: switching data with a switching device, transmitted in a first transmission network according to a first transmission method, between subscribers; connecting a first terminal to the switching device via a first transmission route of the connection route; transmitting data using a second terminal, in a second data transmission network according to a second transmission method connected via a second route of the connection route; setting up at least one connection to the first terminal and at least one connection to the second terminal via the first and second transmission routes of the connection route, such that, during the processing of a request for the setting up of the at least one connection to the first terminal, a control unit of the switching device determines a connection destination via which the second terminal can be reached in the second transmission network via the second transmission route, such that, during the processing of the request, the at least one connection is set up to the second terminal via the second transmission route using the connection destination; wherein one of the first and second transmission networks is a through-switching transmission network for voice transmission and the other of the first and second transmission networks is a transmission network in which data is transmitted in data packets; and wherein using the at least one connection to the second terminal, an enquiry is made to determine whether the at least one connection is to be set up and/or via which transmission network the at least one connection is to be set up.