Patent ID: 8228861

Claim:
A method for supporting handover of a media session for a mobile device, the method comprising the mobile device: transmitting a first media stream from a first Internet protocol (IP) address on the mobile device, wherein the first media stream includes a destination IP address; receiving a second media stream at the first IP address, wherein the second media stream includes a source IP address that is the same as the destination IP address; transmitting a third media stream from a second IP address on the mobile device to a third IP address, wherein the third media stream includes a destination port number; transmitting a signal to start a fourth media stream, wherein the fourth media stream is sent to the third IP address, and wherein the mobile device begins to transmit the signal before the second media stream ends; receiving, at the second IP address, a fifth media stream from the third IP address, which fifth media stream includes at least a portion of the data from the fourth media stream, wherein the fifth media stream includes the destination port number as a source port number; and, transmitting an authentication message, wherein the mobile device begins to transmit the authentication message after the second media stream begins to be received, wherein the mobile device receives at least one packet in the fifth media stream after transmitting the authentication message.