Automatic calling methods and apparatus

Details Automatic calling methods and apparatus Automatic calling methods and apparatus

1980-03-28

1982-06-01

Brigance, Gerald L.

179 90B, 179 18B, 179 18BA, H04M 1274

Patent

active

043329853

ABSTRACT:
Automatic calling systems and methods therefor are provided in accordance with the teachings of the present invention wherein automatic dialing apparatus is connected in parallel with one or more telephone lines within a subscriber's system. Any telephone handset connectable to that telephone line may enter a code on the telephone line to cause the automatic dialing apparatus to become operative to initiate dialing of a predetermined telephone number or portion thereof. When such telephone number comprises an access code for a private leased line subscriber system, the automatic dialing apparatus will also subsequently issue digit information corresponding to the subscriber's billing code. While capable of being implemented in dial modes, the automatic dialing apparatus employed within the instant invention preferably accomplishes automatic dialing by way of issuing DTMF codes regardless of the manner in which it is selectively enabled so that connection with a leased line system appears to be initiated by a DTMF system. Depending upon the embodiment considered, one or more telephone lines within a subscriber's system may be serviced and codes entered at handsets for the purpose of enabling the automatic dialing apparatus may take the form of initial ones of the telephone number to be automatically dialed or input codes to which local telephone equipment does not respond may be employed.

REFERENCES:
patent: 3334190 (1967-08-01), Jenkins et al.
patent: 3600522 (1971-08-01), Benson
patent: 3694583 (1972-09-01), Budrys et al.
patent: 3702905 (1972-11-01), Gil
patent: 3993877 (1976-11-01), Sendyk et al.
patent: 4061885 (1977-12-01), Nash et al.
patent: 4119810 (1978-10-01), Marin et al.
patent: 4171469 (1979-10-01), Brooks
patent: 4232200 (1980-11-01), Hestad et al.
"User's Guide to the SPC Sprintdialer", a Publication of SPCommunications, One Adrian Ct., P.O. Box 974, Burlingame, Ca.

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