A method for maintaining signaling history of application servers to be invoked and applications to be provided in a VoIP network. In one illustrative embodiment, the signaling history of application servers that have been invoked and/or applications that have been processed is inserted into a message...http://www.google.de/patents/US7804818?utm_source=gb-gplus-sharePatent US7804818 - Method for maintaining signaling history in a Voice-over-Internet-Protocol (VoIP) network
