A method performed by a function in a network node in a telecommunications network having at least one service communication proxy, SCP, deployed between a first network node and a second network node. The method includes receiving a request for routing information to signal a message from the first network node to the second network node. The method further includes responsive to the request from the first network node, providing a response to a network node that sent the request wherein the response identifies at least a portion of a routing path for the message based on a routing path configuration.