Call Control entities in a network communicate between themselves by amending call processing messages to include encrypted network information. As such, a call may be established whose path through the network is dependent on the paths of other calls. Information of a scope larger than a Call Controller...http://www.google.fr/patents/US7711828?utm_source=gb-gplus-shareBrevet US7711828 - Communication between call controllers by amending call processing messages
Communication between call controllers by amending call processing messages
