Telephonic communications – Multi-line or key substation system with selective switching... – With special service
Patent
1997-09-11
1999-08-31
Loomis, Paul
Telephonic communications
Multi-line or key substation system with selective switching...
With special service
379142, H04M 100, H04M 156
Patent
active
059463821
ABSTRACT:
This button telephone equipment comprising a plurality of button telephone apparatus 2a-2m having a plurality of the public line button 23 and a display for displaying the sender's information, and an auto-exchange apparatus 1, this auto-exchange apparatus 1 detecting the operation of the public line button during displaying the incoming call or during displaying the holding on the ON-HOOK status, and extracting the communication line data with reference to the incoming call on the basis of the data corresponding to the public line button of the operated button telephone apparatus, and extracting the sender's telephone number on the basis of the extracted communication line data, and extracting the sender's name on the basis of the extracted sender's telephone number, and then displaying the sender's telephone number and the sender's name on the display 22 the operated button telephone apparatus.
REFERENCES:
patent: 5396548 (1995-03-01), Bayerl et al.
patent: 5550905 (1996-08-01), Silverman
patent: 5754635 (1998-05-01), Kim
patent: 5799074 (1998-08-01), Mano et al.
Hitachi Telecom Technologies Ltd.
Loomis Paul
LandOfFree
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