MERLIN LEGEND Communications System Release 6.1
Feature Reference
555-661-110
Issue 1
August 1998
Features
Page 136Centrex Operation
telephone may mean the installer must renumber the system, because the
removed numbers are not automatically reassigned and their removal leaves
empty places in the sequential numbering of extensions. See “System
Renumbering” on page 659 for additional information.
Beginning with Release 3.0, companies can use the 800 GS/LS-ID module to
capture calling number identification information (subscribed to from the CO on
loop-start lines only, if available) and can use MLX display telephones in these
systems to show the number of an outside call received on a line connected to the
module. However, if the customer also subscribes to call waiting through Centrex,
the number of the waiting call is not shown on the MLX display. For more
information, see “Caller ID” on page 111
.
In Release 6.0 and later systems, Centrex Transfer via Remote Call Forwarding is
available only for outside calls that arrive on analog Centrex loop-start lines. The
calls may arrive directly or be transferred without consultation.
Mode Differences 3
Hybrid/PBX Mode 3
Hybrid/PBX mode can be used only in a limited Centrex configuration. In
Releases prior to 2.0, a switchhook flash can be sent to the Centrex service only
when the prime line is terminated either on a personal line or, when prime lines
are shared, on a Pool button. Accessing a prime line through an SA button does
not allow the switchhook flash to be sent to the Centrex service.
In Release 2.0 and later systems, Centrex lines active on an SA button (including
a Shared SA button) can use Recall or switchhook flash.
Tie, WATS, and T1 lines can be used in pools. They can be used only as personal
lines with Centrex service in Key and Behind Switch modes.
Key Mode 3
Key mode can be used only in a limited Centrex configuration.
Key mode avoids the requirement that each extension have a prime line or shared
prime line to make Centrex calls. It allows the use of an ICOM button for access to
Centrex lines. It also allows the use of tie, WATS, and T1 lines as personal lines.
In releases prior to Release 2.0, a switchhook flash can be sent to the Centrex
service only when the line is terminated on a personal line. Accessing the same
line through an ICOM button does not allow the switchhook flash to be sent to the
Centrex service.
In Release 2.0 and later systems, Centrex lines active on an ICOM button can use
Recall or switchhook flash.
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