A forum service that is hosted by a server in an enterprise service bus receives a message from a client, the message being directed to a service in the enterprise service bus. The forum service acts as a message transport in the enterprise service bus. A thread is generated in a forum managed by the forum service for communications between the client and the service. The message is stored in the thread. The service is notified of the message, wherein the service to receive the message, process the message and post a response message to the thread.