M-984-02T detector equivalent, special information tone detector.
* Detects single-frequency tones used for error indication and call progress in telephone systems
* Provides detection windows for: 400/425 Hz (Call Progress) 950.
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* Automatic dialers Modems Telecom test equipment Telephone traffic measurement, Servi.
The M-984-02 Special Information Tone Detector is a monolithic integrated circuit designed to provide reliable detection of many common telephone network status signals. In particular, it detects the signals known as Special Information Tones (SITs) .
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