Telephone with environmentally-influenced call indicator

Details Telephone with environmentally-influenced call indicator Telephone with environmentally-influenced call indicator

1998-07-16

2000-09-19

Dorvil, Richemond

Telephonic communications

Supervisory or control line signaling

Signal reception at substation

H04M 1902

Patent

active

061223662

ABSTRACT:
A telephone according to the invention includes an indicator adapted to provide an indication of the presence of an incoming call, and a sensor adapted to sense an environmental condition and adjust the indicator based on the sensed condition. For example, the sensor can sense an ambient light level and adjust a ringer to not ring or a speaker to mute when the ambient light level is below a threshold and/or based on an ambient noise level. In an alternative embodiment, a method of responding to a ringing signal includes the steps of sensing a level of ambient light, and adjusting an audible indicator based on the sensed level of ambient light.

REFERENCES:
patent: 4076968 (1978-02-01), Wattenbarger
patent: 4856055 (1989-08-01), Schwartz
patent: 4951311 (1990-08-01), Steer
patent: 5031205 (1991-07-01), Phillips
patent: 5131030 (1992-07-01), Cameron
patent: 5686881 (1997-11-01), Ridout
patent: 5844983 (1998-12-01), Lilja

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