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→ Avaya Definity TN429D DIOD (Direct Inward/Outward Dialing) Circuit Pack
Avaya Definity TN429D DIOD (Direct Inward/Outward Dialing) Circuit Pack

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  • 8 ports for direct inward/outward dialing (DIOD) trunks.
  • Each port provides a 2-wire interface to the central office (CO) public exchange for incoming and outgoing calls.
  • The CO provides caller names and numbers to the TN429D, which displays them on DEFINITY digital voice terminals (DCP and BRI) equipped with a 32- or 40-character alphanumeric display, and with System 25/MERLIN 7315H and 7317H terminals supported by DEFINITY.


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