Avaya Definity TN748C Tone Detector (Refurbished) Iwatsu Provides 4 contact closure for

Provides 4 contact closure for electric door lock

fax and email messages onto users' PCs or laptops

8 digital telephone station ports and 1 analog power failure transfer port

On-hook dialing

Merlin Magix

Avaya Definity TN748C Tone Detector (Refurbished) Iwatsu Provides 4 contact closure forKey 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