Patent ID: 7050457
Filing Date: 2006-05-23
Classification: H04Q

Abstract:
1. A method of communication between first and second communications networks in which respectively different communication protocols are used and which are connected to each other via at least one intermediate node, the method comprising the steps of: sending to the intermediate node, via a start node of the first communications network, a start message that is set up according to the first communication protocol which is used in the first communications network, at the start of a communication with a destination node of the second communications network; prompting the destination node and the start node, via the intermediate node and using destination node information that is read from a database, by sending messages to both the destination node and the start node to use a common communication protocol which can be used in both the first and second communications networks for communication between the start node and the destination node; reading an identifier of the common communication protocol by the intermediate node as the destination node information; modifying the start message via the intermediate node by replacement of a protocol identifier of the first communication protocol, which is contained in the message, with the identifier that has been read; sending the modified start message to the destination node via the intermediate node; sending a start reply message, set up according to the common communication protocol, to the intermediate node via the destination node; and sending the start reply message to the start node via the intermediate node; and relaying unchanged, via the intermediate node, subsequent messages between the start node and the destination node which are set up according to the common communication protocol.