Connection

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An aspect of the invention is in relation to an apparatus comprising : at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to : transmit, by a user device, a connection request comprising information on service; receive configuration information in response to the connection request and establishing a connection based on the configuration information, and receive at least one message indicating a reconfiguration to an intermediate state or a connection release based on the information on service.