1978-10-23
1980-11-04
Brigance, Gerald L.
179 90B, 179 16EC, 179 77, H04M 1274, H04M 1908
Patent
active
042322006
ABSTRACT:
An improved dialing system, basically powered through the line, that provides automatic dialing of stored, frequently used numbers and the last number dialed. Self-test capabilities are provided to enable and test all the stored number memory locations automatically. Outgoing call restrictions are provided with a programmable code to bypass the call restriction. The system automatically converts push button dialing to rotary outpulsing, or generates dual tone multi-frequency dialing signals.
REFERENCES:
patent: 3856982 (1974-12-01), Lawson et al.
patent: 3920926 (1975-11-01), Lenaerts et al.
patent: 3956596 (1976-05-01), Connolly et al.
patent: 3973084 (1976-08-01), Hovland
patent: 3980837 (1976-09-01), Jakobsson
patent: 4008379 (1977-02-01), Watkins
patent: 4008380 (1977-02-01), La Borde
patent: 4119810 (1978-10-01), Marin et al.
Hansen Harold O.
Hestad Alfred M.
Synek Jan
Brigance Gerald L.
United Networks Inc.
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