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TN748D Tone Detector

Certified Refurbished: $25.00
This product is eligible for 2 Year Platinum Protection!

TN748D Features

  • Provides four touch-tone receivers and two general purpose ton receivers to detect call progress tones, modem answer-back times, transmission test tones, and noise
  • Provides dial tone detection required for the Automatic  Route Selection (ARS) feature, off-premises (out-of-building) keyboard dialing, and off-premises abbreviated dialing
  • Replaced by TN2182B Tone-Clock, Tone Detector, and Call Classifier

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