Method and apparatus for a dual mode telephone

Details Method and apparatus for a dual mode telephone Method and apparatus for a dual mode telephone

2003-11-26

2008-11-18

Smith, Creighton H (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S353000

Reexamination Certificate

active

07453866

ABSTRACT:
An apparatus and structure for transmitting and receiving an audio signal over a network (25). A dual mode telephone (1) is adapted to switch between a standard telephone mode and an Internet Protocol (IP) telephone mode. The standard telephone mode comprises a standard telephone (11) adapted to transmit and receive audio over a standard telephone network (37). The IP telephone mode comprises an IP telephone (15) adapted to convert an audio signal to an IP packet and transmit the IP packet over a communication link (14) to a network (25).

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patent: 6404764 (2002-06-01), Jones et al.
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patent: 2001/0046237 (2001-11-01), Chan et al.
patent: 2002/0089975 (2002-07-01), Vaziri et al.
patent: 2002/0105946 (2002-08-01), Takeuchi
patent: 2003/0036392 (2003-02-01), Yukie
patent: 2366687 (2002-03-01), None
patent: WO0120890 (2001-03-01), None

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