Telephone and telephone system having improved one-touch calling

Details Telephone and telephone system having improved one-touch calling Telephone and telephone system having improved one-touch calling

1990-08-22

1991-10-01

Ng, Jin F.

Telephonic communications

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

With special service

379216, H04M 100

Patent

active

050540580

ABSTRACT:
Two telephone numbers, one for an outside call and one for an extension call, are registered for each of a plurality of one-touch buttons through a procedure the same as that used in placing a call conventionally and without providing new buttons. When an input designating an outside call is made before pressing a one-touch button, the party corresponding to the outside telephone number is called. When an input designating an outside call is not made before pressing a one-touch button, an extension telephone corresponding to the extension call telephone number is called. Since the same one-touch call designating button can thus be used for both an extension call and an outside call, many telephone numbers can be registered with a small number of buttons.

REFERENCES:
patent: 4665545 (1987-05-01), Galensky et al.
patent: 4759056 (1988-07-01), Akiyama
patent: 4825461 (1989-04-01), Kurita et al.
patent: 4833705 (1989-05-01), Kobayashi
Hank Strobel, "Intelligent Telephone Sets", Telecommunications, Dec. 1980, pp, 59-61.

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