A system is provided for establishing a communication session with a terminal (i.e., terminating SIP client). The system includes a network node (e.g., SIP proxy) located in a network across which an originating client is capable of communicating. The network node is capable of sending a trigger to the...http://www.google.fr/patents/US20050201357?utm_source=gb-gplus-shareBrevet US20050201357 - System and method for establishing a session initiation protocol communication session with a mobile terminal
System and method for establishing a session initiation protocol ...