Patent ID: 8249106

Claim:
A method supporting roaming of a mobile unit between a first network in which multiple devices belonging to a defined set communicate with each other according to a first protocol, wherein the first protocol is a Bluetooth protocol and a second network that provides wireless connectivity according to a cellular telephony protocol, the mobile unit being capable of operation according to the first protocol and the cellular telephony protocol, the method comprising: receiving a voice packet for transmission over at least one radio bearer between at least two devices in the first network, said at least one radio bearer being established according to the first protocol and the voice packet conforming to the cellular telephony protocol; appending a header to the voice packet so that a cellular control stack controls processing of the voice packet according to the first protocol when a field of the header comprises a first value and the cellular control stack controls processing of the voice packet according to cellular telephony protocol when the field of the header comprises a second value different than the first value; and transmitting the voice packet using said at least one radio bearer.