Telephonic communications – Substation or terminal circuitry – Amplifying
Patent
1997-06-02
1998-09-08
Matar, Ahmad F.
Telephonic communications
Substation or terminal circuitry
Amplifying
379266, 379309, H04M 350
Patent
active
058056955
ABSTRACT:
A transmit by-pass cable for use in a telephone system having a headset and an amplifier. The by-pass cable finds application in an automatic call distribution network having automatic log-on/log-off capability. The by-pass cable connects the amplifier to the receive pair while the transmit pair is connected directly from the terminal to the headset.
REFERENCES:
patent: 4449247 (1984-05-01), Waschka, Jr.
patent: 4672663 (1987-06-01), Tomasi
patent: 5226077 (1993-07-01), Lynn et al.
patent: 5396551 (1995-03-01), Lucey
patent: 5623544 (1997-04-01), Papadopoulos
Fortin Jean-Pierre
Matar Ahmad F.
Northern Telecom Limited
Saint-Surin Jacques M.
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