Internet telephone system

Details Internet telephone system Internet telephone system

2003-08-06

2008-08-26

Smith, Creighton H (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S355000

Reexamination Certificate

active

07417980

ABSTRACT:
An Internet telephone system is provided with an Internet terminal device capable of connecting with the Internet and transmitting and receiving audio signals for a voice communication. The Internet terminal has a communication unit through for transmitting/receiving the audio signals to/from the Internet. The Internet terminal device has a first interface for outputting/inputting the audio signals for the voice communication and a multifunction device having a telephone function and an Internet telephone function. The multifunction device has a sound input/output unit, a second interface that interfaces between the sound input/output unit and the first interface, a third interface that interfaces between the sound input/output unit and a public telephone network, and a switching system that switches the second interface and the third interface depending on whether the telephone function is used or the Internet telephone function is used.

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patent: 7200853 (2007-04-01), Kawai
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patent: A 2000-261567 (2000-09-01), None
patent: A 2001-230879 (2001-08-01), None

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