A mobile terminal having a packet communication function according to a mobile IP and a communication route optimizing function includes a session controller for setting a session between terminals in accordance with a session control message of a protocol different from the mobile IP. When a session...http://www.google.fr/patents/US7286520?utm_source=gb-gplus-shareBrevet US7286520 - Mobile terminal equipment and packet communication method between terminals
Mobile terminal equipment and packet communication method between terminals