Instruction manual

GLOSSARY

Digital Trunk

A circuit in a telecommunications channel designed to handle digital voice and data.

Digit Conversion

A process used to convert specific dialed numbers into other dialed numbers. ARS uses

Digit Conversion to convert public network numbers (ARS) to private network numbers

(AAR) in order to save toll charges. AAR uses Digit Conversion to convert private net-

work numbers (ARS) to other private or public network numbers (AAR).

Direct-Agent Calls

A special type of ACD call directed to a particular agent, rather than any available agent

in the split.

Direct Agent Calling (DAC)

An entry is provided in the COR to allow originating and receiving of direct-agent calls. A

direct-agent call is a special type of ACD call directed to a particular agent, rather than

any available agent in the split. A calling party that is DAC restricted is denied the ability

to originate direct-agent calls. A called party that is DAC restricted is denied the ability to

receive direct-agent calls. Restricted calls are muted to intercept.

Direct Extension Solution (DXS)

An option at the attendant console that allows an attendant direct access to voice termi-

nals by pressing a Group Select button and a DXS button.

Distributed Communications System (DCS)

The Distributed Communications System is a private network of distributed switches

linked together with trunks to form a DCS complex. The switches in the complex are

connected with data links that allow call processing information to be passed from one

switch to another. This provides feature transparency

so that certain features are per-

ceived by users to be the same whether they are talking to a station served by the same

switch or to a station on a different switch in the complex.

DS1

A DS1 trunk multiplexes up to 24 64-kbps digital channels over a 4-wire interface for data

or voice. The 64-kbps capacity is achieved by having 8000 frames of 8-bit data per

second. This trunk can be used as a timing reference for the switch or by an external

Stratum 3 clock.

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