Avaya
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AVDEF63123C-REF
Avaya Definity TN748C Tone Detector (Refurbished)
Key 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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