Patent ID: 8493931

Claim:
A method for supporting a handover of a media session, the method performed by a mobile device, the method comprising: conducting the media session using a first Internet Protocol (IP) address, wherein, before the handover, the media session comprises a first media stream sent from the first IP address and a second media stream received at the first IP address; recording a parameter associated with a second IP address before the media session begins; using the recorded parameter at least in part to send a third media stream from the second IP address concurrently with sending of the first stream, wherein the first media stream and the third media stream, when sent concurrently, each contains at least a portion of the same media as the other; and, selecting a port number, wherein the port number comprises (i) a source port number for the third media stream and (ii) a destination port number for a fourth media stream received at the second IP address.