Telephonic communications – Substation or terminal circuitry – Visual signalling
Patent
1994-12-13
1997-03-25
Brown, Thomas W.
Telephonic communications
Substation or terminal circuitry
Visual signalling
379 96, 379 97, 379112, 379201, 345 10, H04M 156, H04M 127, H04M 1108
Patent
active
056152574
ABSTRACT:
An interactive subscriber telephone terminal, comprising: a display screen; a plurality of temporarily definable response/data entry keys; and local control means for selectively causing the display screen and/or the response/data entry keys to be controlled by one of: remote signals transmitted to the terminal from a telephone switching office, and the local control means.
REFERENCES:
patent: 5263084 (1993-11-01), Chaput et al.
patent: 5392337 (1995-02-01), Baals et al.
patent: 5402477 (1995-03-01), McMahan et al.
Brisebois Michel J.
Johns Joseph B.
Orford Kenneth M.
Pezzullo William V.
Read Clifford D.
Brown Thomas W.
Northern Telecom Limited
Saint-Surin Jacques M.
Vigil Thomas R.
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