- 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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