Method and apparatus for designating and making an automatic cal

Details Method and apparatus for designating and making an automatic cal Method and apparatus for designating and making an automatic cal

1997-12-30

1999-08-03

Loomis, Paul

Telephonic communications

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

With intercom system

379158, H04M 100

Patent

active

059334827

ABSTRACT:
A method for making an automatic call for a designated pair of key telephone sets attendant on a key telephone exchange system. The method includes the steps of designating a specified pair of key telephone sets to be served the automatic call therebetween in an idle state of the pair of the key telephone sets, and storing information of the designated key telephone sets into the key telephone exchange system; and causing either one of the pair of the designated key telephone sets to be connected on the automatic call with the other one of the pair of the designated key telephone sets, responsive to a request for the automatic call by either one of the key telephone sets designated, the key telephone sets being in an idle state.

REFERENCES:
patent: 3976847 (1976-08-01), Bidlack et al.
patent: 4665545 (1987-05-01), Galensky et al.
patent: 5090052 (1992-02-01), Nakajima et al.
patent: 5151933 (1992-09-01), Abe

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