Patent ID: 8621103

Claim:
A network node for routing messages in an IP based signaling network, comprising: at least two interfaces each towards a remote network node of the IP based signaling network, each remote network node implementing a remote signaling process; a processing unit configured to route an incoming message received at a first of the at least two interfaces to a second interface of the at least two interfaces, the routing comprising a translating of the incoming message into a corresponding outgoing message in dependence on a type of the remote signaling process of the remote network node at the first interface and a type of the remote signaling process of the remote network node at the second interface, wherein each of the at least two interfaces is provided by a local signaling process running locally on said processing unit, and wherein a type of the local signaling process is determined by the type of the remote signaling process of the remote network node at the interface provided by the local signaling process; and a memory unit configured to store a state of at least one remote network node at one of the at least two interfaces, and wherein the local signaling process providing the respective interface is configured to update the stored state in accordance with an availability status of the remote network node.