Maintaining communication sessions

摘要

Communication occurs between a server and a terminal. The terminal establishes a first communication path with the server via a first allocated address. The server allocates an identification reference to a communication session upon initiation of said communication session. During the communication session the first communication path is closed and replaced by a second communication path with said server via a second allocated address. The server maintains said communication session after replacement of the first communication path with the second communication path by identifying said identification reference and communicating with said remote station via said second allocated address.