A method of establishing a packet data session from an originating mobile station (MS) to a terminating mobile station (MS). The method comprises the steps of: i) receiving in an originating base station (BS) of a first wireless network a packet data connection request transmitted by the originating...http://www.google.de/patents/US20050099998?utm_source=gb-gplus-sharePatent US20050099998 - System and method for establishing mobile station-to-mobile station packet data calls between mobile stations in different wireless networks
