MERLIN LEGEND Communications System Release 6.1
Feature Reference
555-661-110
Issue 1
August 1998
Features
Page 133Centrex Operation
■ A switchhook flash, feature access code, or Feature button-press is
interpreted as intended for the Centrex service.
In limited Centrex service:
■ The communications system operates in Key or Hybrid/PBX mode.
■ Intercom calls can be made between communications system extensions.
■ Calls to Centrex extensions require access to a prime line.
■ A switchhook flash, feature access code, or Feature button-press activates
the communications system feature or disconnects the call, and does not
access a Centrex feature.
■ Outside calls using Centrex service are made through individual prime
lines or pooled prime lines.
■ Other types of lines (tie, DID, and T1) can also be used for outside calls
without using Centrex service.
Centrex Transfer via Remote Call Forwarding 3
In Release 6.0 and later systems, in full and limited Centrex systems, Centrex
Transfer via Remote Call Forwarding allows the remote call forwarding of outside
calls that arrive on Centrex loop-start facilities. In this context, the term
outside
calls
refers to calls from outside the communications system, which may originate
at an extension in the Centrex system but not connected to the local MERLIN
LEGEND Communications System or anywhere in the PSTN. This saves
line/trunk resources. Full details of this operation and its feature interactions are
discussed in “Forward and Follow Me” on page 289
.
When an eligible call arrives and the feature is active, Centrex Transfer via
Remote Call Forwarding sends a switchhook flash to the central office, which puts
the call on hold and supplies Centrex dial tone for the call. The communications
system then dials the programmed Remote Call Forwarding sequence and hangs
up, completing the transfer and leaving the line open for other calls.
The following rules apply to Centrex Transfer via Remote Call Forwarding:
■ Only outside calls arriving on loop-start Centrex lines are forwarded by
using this feature. Inside calls originating locally or anywhere on a private
network, using private network facilities, can be remote call forwarded, but
regular Remote Call Forwarding should be used instead.
■ The system must be equipped with analog Centrex loop-start lines/trunks.
All
analog loop-start lines in the system must be Centrex facilities. Other
types of facilities may be used in the limited Centrex configuration, but calls
arriving on these facilities cannot be remote call-forwarded.
■ To transfer calls outside the Centrex system, the organization must
subscribe to a Centrex trunk-to-trunk transfer feature. Otherwise, the
feature only works for forwarding to Centrex system extensions that are, for
example, not connected to the communications system.
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