A communication network includes a SS7 Security Gatekeeper that authenticates and validates network control messages within, transiting, entering and leaving an overlying control fabric such as an SS7 network. The SS7 Security Gatekeeper incorporates several levels of checks to ensure that messages are...http://www.google.de/patents/US7218613?utm_source=gb-gplus-sharePatent US7218613 - Method and apparatus for in context mediating common channel signaling messages between networks
