AT&T DEFINITY 7100 series Bedienungsanleitung PDF herunterladen (Seite 31)

FEATURES

Feature

Direct Department Calling

and Uniform Call Distribution

(continued)

Direct Inward Dialing (DID)

Direct Outward Dialing (DOD)

Do Not Disturb

DS1 Tie Trunk Service

Electronic Industries Associ-

ation (EIA) Interface

Information System Network

(ISN) Interface

Hardware

Announcements, and a TN750B circuit pack

provides up to 128 different announcements.

One port on a TN753 DID trunk circuit pack for

each DID trunk.

One port on a TN747B CO trunk circuit pack

or TN767B DS1 interface circuit pack (used

for ground and loop-start trunks) for each

assigned trunk.

If voice prompting is used, a TN725B voice

synthesizer circuit pack is required. Each cir-

cuit pack has four ports.

One TN722B DS1 tie trunk, TN767B DS1

interface, or TN464C DS1 interface (Univer-

sal) circuit pack per 24 voice-grade DS1 tie

trunks required or per 23 AVD DS1 tie trunks.

A TN768 tone generator/clock circuit pack for

synchronization of the DS1 tie trunks.

One TN726 data line circuit pack per eight EIA

interfaces. One ADU per port on the circuit

pack.

One TN726 data line circuit pack per eight ISN

interfaces.

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AT&T DEFINITY 7100 series Bedienungsanleitung Seite 31