Key telephone system with virtual private lines

Details Key telephone system with virtual private lines Key telephone system with virtual private lines

1991-09-26

1993-05-25

Schreyer, Stafford

Telephonic communications

Multi-line or key substation system with selective switching...

With special service

379165, 379171, 379258, 379268, H04M 126

Patent

active

052146910

ABSTRACT:
A virtual private line key telephone system is provided. The system includes a console including a plurality of line keys each associated with a party that can be reached via a switched trunk line. A look-up table means associates the line keys with the telephone numbers of the associated parties. A communication path is established from the console to one of the trunk lines. Signals are sent to the central office via the selected trunk line corresponding to the telephone number in the look-up table means associated with a line key that is actuated to place a calls. The telephone number of incoming calls are determined and compared with telephone numbers in the look-up table. Thereafter the line keys which are associated with the incoming calls are determined. The incoming call is coupled to the console when a line key associated with the incoming caller is actuated.

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