Patent ID: 7003298

Claim:
A wireless telephone device comprising: a physical component for wireless communication; and a processor coupled with the physical component, in which the processor is adapted to establish an original leg of a telephone call connection using one of a CSV modality and a VoX modality; transfer data of a voice conversation between the original leg and a voice channel that terminates in one of a speaker and a microphone pursuant to the telephone call connection; exchange a modality handoff signal after transferring voice data over the original leg, wherein exchanging the modality handoff signal is performed over the original leg; receive an address signal encoding an access address, wherein the access address identifies a handoff device; make a handoff call to the handoff device responsive to receiving the address signal; establish from the handoff call an alternate leg of the telephone call connection using the other one of the two modalities while the original leg is still established; and then transfer data of the voice conversation between the voice channel and the alternate leg pursuant to the telephone call connection.