CMX673 detector equivalent, call progress tone detector.
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* Worldwide Tone Compatibility Single and Dual Tones Detected Wide Dynamic Signal Range Fast Response Time Low Power Operation 500µA at .
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* Worldwide Payphone Systems Telephone Redialling Systems Dialling Modems Banking and .
The CMX673 is a general purpose call progress tone detector for use in Public Switched Telephone System (PSTN) applications. Call progress detection allows equipment which dials into the PSTN network to monitor the progress of the resulting call. Rin.
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