Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Monitoring
Patent
1989-07-28
1990-06-05
Schreyer, Stafford D.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Monitoring
379457, 379352, 379 81, H04M 314
Patent
active
049320467
ABSTRACT:
A system automates interface intervals with remote telephone terminals as to provide information or advice in response to select tone signals formed at a telephone terminal, and at the conclusion of an interval provides a disconnect or termination signal prompting a caller to "hang up". Disconnect signals simulate known sounds, specifically as the "click" attendant a remote "hang up" and the traditional dial tone. The disconnect signals are transmitted to a caller after an interface interval to prompt the caller to "hang up" and release the telephone line connection.
REFERENCES:
patent: 4314103 (1982-02-01), Wilson
Katz Ronald A.
Ross Dennis L.
First Data Resources Inc.
Schreyer Stafford D.
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