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Application filed by Treuunternehmen PromundofiledCriticalTreuunternehmen Promundo
Publication of CH302742ApublicationCriticalpatent/CH302742A/de
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
H04M1/65—Recording arrangements for recording a message from the calling party
H04M1/652—Means for playing back the recorded messages by remote control over a telephone line
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
H04M1/65—Recording arrangements for recording a message from the calling party
H04M1/6515—Recording arrangements for recording a message from the calling party using magnetic tape
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Electromechanical Clocks
(AREA)
CH302742D1950-12-311950-12-31Verfahren und Einrichtung zur Ansteuerung eines Telephonographen.
CH302742A
(de)
Schaltungsanordnung zum impulsmaessigen Einspeisen von niederfrequenten Signalen in Signaluebertragungsleitungen von nach dem Zeitmultiplexprinzip arbeitenden Fernmelde-, insbesondere Fernsprech-vermittlungsanlagen
Schaltungsanordnung zur zwangsweisen Trennung niederwertiger Verbindungen zugunsten hochwertiger Verbindungen in Anlagen mit an einer Gesellschaftsleitung liegenden Anschlussstellen
Schaltungsanordnung zum Empfang von akustischen Zeichen aus einer mehreren Teilnehmern gemeinsamen Geberstelle ueber das Leitungsnetz einer Fernsprechanlage