Telephone apparatus used for computer network telephone system

Details Telephone apparatus used for computer network telephone system Telephone apparatus used for computer network telephone system

1996-12-11

2008-09-02

Pham, Chi H. (Department: 2731)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S535000, C709S219000

Reexamination Certificate

active

07420959

ABSTRACT:
A telephone apparatus connectable to a computer network through a telephone network to transmit data including audio signals via a server of said computer network includes: a first telephone set including a first audio input/output means for converting input voice into a digital audio signal and for converting a digital audio signal into output voice, and a first CPU that executes process for connecting the first telephone set to the server and process for compressing or expanding the digital audio signal; a second telephone set including a second audio input/output means for converting input voice into a digital audio signal and for converting a digital audio signal into output voice, and a second CPU that executes process for connecting the first telephone set to the server and process for compressing or expanding the digital audio signal; and connection control means connected between the telephone network and the first and second CPUs to enable the first and second CPUs to transmit the data.

REFERENCES:
patent: 4740963 (1988-04-01), Eckley
patent: 5598536 (1997-01-01), Slaughter et al.
patent: 5604737 (1997-02-01), Iwami et al.

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