System and method for transmitting messages to a telephone set t

Details System and method for transmitting messages to a telephone set t System and method for transmitting messages to a telephone set t

1983-08-04

1985-04-09

Rubinson, Gene Z.

179 2R, 179 18B, 179 601, H04M 1100

Patent

active

045103496

ABSTRACT:
A message transmitting system incorporated in a telephone system includes a device for generating service signals relating to the making of a telephone connection between one telephone set and another telephone set and a mixer with two inputs which are connected to the service signal generating device and to a message generating device, respectively. The output of the mixer being connected to the telephone line.

REFERENCES:
patent: 3727003 (1973-04-01), Paraskevakos
patent: 3974338 (1976-08-01), Luzier et al.
patent: 4166929 (1979-09-01), Sheinbein
patent: 4242539 (1980-12-01), Hashimoto
patent: 4311875 (1982-01-01), Danner
The Bell System Technical Journal, vol. 60, No. 6, Jul.-Aug., 1981, pp. 1083-1108, Anderson et al, "Mass Announcement Subsystem".
IBM Technical Disclosure Bulletin, vol. 22, No. 6, Nov. 1979, Abramson, "Touch-Tone Spurious Triggering Prevention".

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