Adjunct interface apparatus for a telephone set

Details Adjunct interface apparatus for a telephone set Adjunct interface apparatus for a telephone set

1990-12-24

1993-08-17

Dwyer, James L.

Telephonic communications

Subscriber line or transmission line interface

379436, 379454, 379447, 379387, H04M 356

Patent

active

052376052

ABSTRACT:
A telephone set is disclosed which includes an adjunct interface module within the telephone set stand of the telephone set. This adjunct interface module converts the telephone set interface, which connects the telephone set to a premise switching system, to a different interface that is used by adjunct telephone equipment associated with the telephone set. Typically, the telephone set interface is a non-standard, or proprietary, interface, while the adjunct interface is the more common tip-ring interface.

REFERENCES:
patent: 4375584 (1983-03-01), Muzumdar et al.
patent: 4459434 (1984-07-01), Benning et al.
patent: 4741033 (1988-04-01), Utoh et al.
patent: 4817127 (1989-03-01), Chamberlain et al.
patent: 4821319 (1989-04-01), Middleton
Teleconnect 1A2Plus Dec. 1987.

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