Centrex Operation - AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual

Applications

Centrex Operation

CAUTION
This section is intended solely as an overview of the application. For
comprehensive information about the use of the application, see the
documentation for the product.
Centrex is an optional telephone service for business customers. It provides an
array of telephone features from the CO that formerly were available only from a
PBX located on the customer's premises.
Basic Centrex features include the following:
Transfer
Three-Way Conference
Drop
Hold
Recall
Call Forwarding
Call Waiting
Call Pickup
Group Pickup
Automatic Callback
Additional features such as Speed Dialing and Night Service can also be
added.
The system can be used with either full or limited Centrex service. Full Centrex
service requires that telephones have a Centrex line and that the users depend
primarily on Centrex features for their communications needs. Full Centrex can
also be used when only some telephones have direct lines, while others share
lines or have no direct line assigned. Limited Centrex service is for customers
who use the system features for most of their communications needs.
Timed Flash
In Releases 1.0 and 1.1, a timed flash can be generated on a Direct Facility
Termination (DFT) button or a Direct Pool Termination (DPT) button only, as long
as the call is not a conference call and the facility is a loop-start line. A timed
flash cannot be generated for an external call that terminates on a System
Access button.
4-52 Centrex Operation