Method and circuit arrangement for allowing telephone conversati

Details Method and circuit arrangement for allowing telephone conversati Method and circuit arrangement for allowing telephone conversati

1995-12-18

1998-07-21

Hong, Harry S.

Telephonic communications

Special services

Conferencing

370267, H04M 356, H04Q 1104

Patent

active

057844470

ABSTRACT:
A method and circuit arrangement for allowing and improving the telephone conversation among several users in digital switched telephone PCM systems, using a multiplication coefficient inversely proportional to the level of each line.

REFERENCES:
patent: 4558180 (1985-12-01), Scordo
patent: 4754258 (1988-06-01), Nakamura et al.
patent: 5054021 (1991-10-01), Epps
patent: 5457685 (1995-10-01), Champion

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