Telephone headset in-use indicator

Details Telephone headset in-use indicator Telephone headset in-use indicator

1995-08-04

1997-03-04

Matar, Ahmad F.

Telephonic communications

Substation or terminal circuitry

Visual signalling

379377, 379387, 379430, H04M 105

Patent

active

056087942

ABSTRACT:
An indicator lamp identifies the status of telephone calls both transmitted and received from a hands-free telephone headset. The indicator lamp is either automatically activated by a signal from a telephone line or manually activated by a switch. Manual activation provides an additional means for the operator to prevent interruptions regardless of telephone status. The indicator lamp is located at various locations on the headset next to the mouthpiece or, alternatively, along the entire length of the headset arm.

REFERENCES:
patent: 3951248 (1976-04-01), Feiner et al.
patent: 4558178 (1985-12-01), Yasuda et al.
patent: 5210791 (1993-05-01), Krasik
patent: 5359647 (1994-10-01), Regen et al.
patent: 5422947 (1995-06-01), Azem

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