Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 506

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Primary Rate Interface (PRI) and T1
Outgoing calls using call-by-call service selection can be made by pressing a line
button, pressing a Pool button, dialing a pool number, or using ARS.
The Call-by-Call Services Table must be programmed for the Call-by-Call Service
Selection feature to take effect. If a service is not specified in the table, the entry is
ignored.
An SMDR record is not recorded for any call on a PRI facility that is shorter than
the programmed SMDR Call Length. Usually, the SMDR Call Length is
programmed to compensate for connection and ringing time of calls on non-PRI
facilities before they are answered. For systems where the most lines are PRI
lines, the call length should be programmed for one (1) second.
Feature Interactions
Account Code Entry
Automatic Route
Selection
Barge-In
Call Waiting
At an extension assigned to a PRI line, either enter an account code
before the call is made or during the call. Forced account codes must be
entered before the call is made. An account code entered before a call is
treated as a restriction code for all the outgoing calls placed over the PRI
line.
If the SMDR feature is not enabled to record incoming calls, the system
does not accept Account Code Entry information for incoming calls.
An incoming call can access Automatic Route Selection (ARS) only
through remote access, transferring, or Remote Call Forwarding through
ARS. A PRI line can be a member of a pool accessed through ARS.
Before ARS routes a call to a pool, it determines whether one or more
member lines in that pool are available. If not, it selects an alternative
pool so that the call is not blocked. Even if a B-channel is available when
ARS selects a pool with an available line, there may be none available
when it is time to send a setup message to the network. Or, after the
setup message is sent, the network may determine that the B-channel
proposed by the system is not available. In either case, the call fails and
fast busy tone is heard.
If an incoming call matches the ARS access code, it is routed to the
extension programmed for unassigned DID calls.
Barge-In can be used on a PRI line. Users cannot barge into data calls.
Call Waiting is provided on PRI lines at extensions so programmed. The
call-waiting tone is not blocked from PRI at an extension. Until the call is
answered, answer supervision is not returned to the network and the
caller hears regular ringback instead of call-waiting ringback.
Call Waiting does not work with data calls.
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Issue 1
June 1997
Page 474