Patent ID: 8730947

Claim:
A method for setting up a connection via an interconnection between different first and second networks, the method comprising: setting up a first part of the connection from a first subscriber station to at least the first network unit in the first network, receiving first information at a first module located in or connected to the first network, the first information comprising at least part of a first identification of the first subscriber station, and at least a part of a second identification of a second subscriber station that is to be called and which causes the first part of the connection to be set up to at least the first network unit, in response to the first information being received by the first module, sending second information from the first module to a second module in or connected to the second network, the second information comprising instructions for setting up an interconnection from the second network to the first network, causing the charging control of the interconnection to take place outside the first network, in response to the second information being received by the second module, setting up the interconnection, the interconnection being set up from the second network to the first network via the first network unit, the interconnection being connected to the pre-existing first part of the connection, in the second network setting up a second part of the connection to the second subscriber station, and connecting the second part of the connection to the interconnection.