1974-04-18
1976-04-20
Olms, Douglas W.
H04M 324
Patent
active
039521729
ABSTRACT:
A telephone simulator includes a plurality of pseudo subscriber circuits connected to subscriber lines. A plurality of pseudo junctors are connected to trunk lines. A number of detector circuits respond to line conditions, tones, circuit operations, data processing, and the like. A data processor uses these equipments to check incoming and outgoing calls to and from a public telephone network.
REFERENCES:
patent: 3497639 (1970-02-01), Malinich et al.
patent: 3692961 (1972-09-01), Le Strat et al.
patent: 3692962 (1972-09-01), Raczynski et al.
patent: 3840712 (1974-10-01), Oberer et al.
Castex Paul Jean
Penn Corentin Jean Louis
Tarridec Andre
Olms Douglas W.
SOCOTEL, a Societe Mixte pour le Developpement de la Technique d
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