Patent ID: 6816912
Filing Date: 2004-11-09
Classification: H04W

Abstract:
A method of establishing a communications path, comprising:sending a request from a mobile network device to a foreign service application on a foreign network, wherein the mobile network device has roamed from a home network to the foreign network; receiving a response from the foreign service application for the request on a tunnel server; tunneling the response via a unidirectional virtual tunnel to a foreign agent, wherein the unidirectional virtual tunnel overrides a default communications path from the foreign service application on the foreign network to a home agent on the home network and to the mobile network device on the foreign network and creates a new communications path from the foreign service application to the tunnel server, to the foreign agent and to the mobile network device on the foreign network; receiving the tunneled response on the foreign agent on the foreign network via the unidirectional virtual tunnel from the tunnel server; sending an un-tunneled response from the foreign agent to the mobile network device, thereby reducing round-trip time delay between the foreign service application and the mobile network device; and receiving the un-tunneled response on the mobile network device.