Patent ID: 8542668

Claim:
A method for wireless communication, comprising: communicating first VoIP/VIP (voice over Internet Protocol or video over Internet Protocol) packets in a first session between a first IP address and a second IP address, wherein the first IP address is an IP address associated with a first device and wherein the second IP address is an IP address associated with a second device, and wherein communications associated with the first session occur over a first wireless communication link between the first device and a transceiver on a first network; communicating a SPAWN SIP (Session Initialization Protocol) message in the first session from the first device to the second device, wherein the SPAWN SIP message identifies the first session; initializing a second session using the SPAWN SIP message so that the first session and the second session are both active, the second session being between a third IP address and the second IP address, wherein the third IP address is associated with the first device, and wherein initializing the second session includes: receiving, at the first device and from the second device, a first SIP OK message including a SPAWN identifier, wherein the SPAWN identifier is generated at the second device in response to receiving the SPAWN SIP message, and wherein the SPAWN identifier associates the first session and the second session with each other; sending a first SIP ACK message from the first device to the second device in response to receiving the first SIP OK message; sending a SIP INVITE message from the first device to the second device, wherein the SIP INVITE message includes the SPAWN identifier; receiving by the first device a second SIP OK message generated by the second device when the SPAWN identifier included in the SIP INVITE message is recognized by the second device by comparison with a list of one or more SPAWN identifiers stored on the second device; and sending a second SIP ACK message from the first device to the second device; and communicating second VoIP/VIP packets in the second session between the third IP address and the second IP address, wherein communications associated with the second session occur over a second wireless communication link between the first device and a transceiver on a second network, wherein the first VoIP/VIP packets and the second VoIP/VIP packets include voice data of a single media stream.