AT&T MERLIN LEGEND Release 4.0 Feature Reference page 377

Feature Reference
The system supports loudspeaker systems with talkback (bidirectional paging),
which allows users to respond to pages.
Prior to Release 2.1, users at extensions programmed with Forced Account
Code Entry need to enter an account code to use Loudspeaker Paging. In
Release 2.1 and later, users at extensions programmed with Forced Account
Code Entry do not need to enter an account code to use Loudspeaker Paging.
Telephone Differences
Direct-Line Consoles
The trunk jack programmed for Loudspeaker Paging can be assigned to a
button on an analog or digital Direct-Line Console (DLC) for one-touch access.
An operator with a MLX DLC can also access a loudspeaker paging system by
dialing the trunk number (801–880) for the trunk jack on which the loudspeaker
paging system is connected.
Queued Call Consoles
A Queued Call Console (QCC) cannot make or receive voice-announced inside
calls (speakerphone calls to an individual extension). A QCC cannot be a
member of a speakerphone paging group and cannot receive group pages;
however, it can make announcements to a paging group.
A QCC operator can use the Group Paging feature by selecting a Call button
and pressing the DSS (Direct Station Selector) button or dialing the extension for
the group.
A QCC operator can use a loudspeaker paging system only by selecting a Call
button, selecting
Loudspeaker Paging line number (801–880).
Cordless and Cordless/Wireless Telephones
MLC-5, MDC 9000 and MDW 9000 telephones cannot be members of paging
groups or receive speakerphone pages.
Loudspeaker pages can be made from MLC-5 cordless telephones.
from the display, and then dialing the
377
Paging