Message registration pulse generator

Details Message registration pulse generator Message registration pulse generator

1978-02-16

1979-04-24

Claffy, Kathleen H.

H04M 1512

Patent

active

041513720

ABSTRACT:
An apparatus for generating message unit pulses for message rate billing which includes means responsive to answer pulse recognition signals and electronic answer supervision from a central office for providing separate and variable numbers of pulses per event based on duration, time of day and distance of call.

REFERENCES:
patent: 3573378 (1971-04-01), Leyburn et al.
patent: 3769463 (1973-10-01), Graham et al.
patent: 3801745 (1974-04-01), Zuckerman
patent: 3806652 (1974-04-01), Woolf et al.
patent: 3934240 (1976-01-01), Norling
patent: 3982073 (1976-09-01), Baltzer et al.
patent: 4090034 (1978-05-01), Moylan

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