Telephone long distance redialing apparatus and process

Details Telephone long distance redialing apparatus and process Telephone long distance redialing apparatus and process

1990-06-22

1993-12-07

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Substation originated

379354, 379355, 379216, H04M 100

Patent

active

052689590

ABSTRACT:
To enable a long distance prefix "1" to be added to the memory in a telephone set of the last number dialed, a permanent memory of "1" is provided which enables the prefix "1" to be dialed automatically prior to and in conjunction with automatic redialing of the last number dialed by pressing a single long distance redial key.

REFERENCES:
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patent: 3920926 (1975-11-01), Lenaerts et al.
patent: 3932709 (1976-01-01), Hoff et al.
patent: 4008379 (1977-02-01), Watkins
patent: 4008380 (1977-02-01), La Borde
patent: 4029908 (1977-06-01), Moseley et al.
patent: 4032722 (1977-06-01), Connolly et al.
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patent: 4243845 (1981-01-01), Feinberg et al.
patent: 4324954 (1982-04-01), Taylor
patent: 4431870 (1984-02-01), May et al.
patent: 4864622 (1989-09-01), Iida et al.
patent: 4870686 (1989-09-01), Gerson et al.
patent: 4980910 (1990-12-01), Osa et al.

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