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TELEPHONE DECODERModel 250 Universal Telephone Decoder features automatic printout of both Touch-Tone and rotary dial signals. Instrument records date of call, off-hook time, on-hook time, and responds to asterisk and keyboard symbols whenever these special functions are utilized. Printed indication of the presence of 2600 Hz tones is available optionally. Special Features: Model has polarity-independent input circuitry, negible line loading and is internally protected against high voltage line transients.VOICEPRINT LABORATORIES.
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[HaBi 1]
TELEPHONE DECODER