Arrangement in equipment for the reproduction of voice message in telephone line.

摘要

The arrangement in equipment deals with the reproduction of voice messages in telephone line, with the aim of replacing the signal machines (generating tones and rings) used at present at public or private telephone exchanges, and presents an Input Manager Module (10) and an Output Manager Module (11), a Background Music Circuit (12), Mass Memories (13, 14, 15), a RAM's Memories Bank (16), a Delta Demodulation Circuit (17, 18), a Parallel/series Converter (19, 20), a Commutator switch (21), a Modulator (22), a Supervision Tone (N) (23) and a Summing Circuit (24).