Patent ID: 7583956

Claim:
A method of establishing a conference call at a wireless communications device, the method comprising: establishing a conference call at a wireless communications device operating in a dual transfer mode between the wireless communications device and first and second remote parties, the wireless communications device communicating with the first remote party over a circuit-switched connection and with the second remote party over packet-switched connection; and receiving, at the wireless communications device, inbound voice data from the first remote party over the circuit-switched connection, and inbound packetized voice data from the second remote party over the packet-switched connection; transcoding, at the wireless communications device, the inbound voice data into outbound packetized voice data by: mixing the inbound voice data with voice data generated at a microphone of the wireless communications device to generate composite packetized voice data; and encoding the composite packetized voice data to be transmitted over the packet-switched connection, transcoding, at the wireless communications device, the inbound packetized voice data into an outbound voice data by: mixing the inbound packetized voice data with voice data generated at the microphone of the wireless communications device to generate composite voice data; encoding the composite voice data to be transmitted over the circuit-switched connection; and transmitting the composite packetized voice data to the second remote party over the packet-switched connection, and transmitting the composite voice data to the first remote party ever the circuit-switched connection.