Lucent Technologies MERLIN LEGEND Release 6.1 Feature Reference page 572

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Features
Primary Rate Interface (PRI) and T1
Disconnect Timing. Disconnect Timing sets a time limit, in milliseconds, that a
disconnect signal must be present to be considered valid. The timing can be set to
any value from 140 to 4,800 ms, in increments of 20 ms. The factory setting is
300 ms, which should be used in networked Release 6.0 and later systems for
tandem tie trunks.
T1 Routing by Dial Plan
Beginning with Release 4.0, routing by dial plan is available on Switched 56
services offered on T1 connections.
Service providers offer digit outpulsing for their T1 Switched 56 services. With
digit outpulsing, the central office sends a number of digits to the MERLIN
LEGEND Communications System. When ordering the service, the system
manager must choose how many digits are to be sent to the communications
system. Generally, the default number of outpulsed digits is four; however the
system manager may choose 3-digit outpulsing, which can be accepted by the
MERLIN LEGEND Communications System for Switched 56 services.
In many cases, the digits that are sent from the service provider may not match
the MERLIN LEGEND Communications System dial plan. In these cases, the
digits can be manipulated by absorption, deletion, or addition of digits. The system
manager also can use system programming to renumber a block of dial-plan
numbers on the communications system to match the outpulsed digits.
With this enhancement, multiple telephone numbers can be used on a single T1
Switched 56 line. For example, these could be three ACCUNET Switched 56
Services channels on a T1 line/trunk with 10 different numbers on each channel.
This allows 30 different (non-simultaneous) callers with unique numbers to call
into the communications system and reach 30 different data extensions.
NOTE:
Most local exchange carriers (LECs) do not offer multiple telephone
numbers associated with a single channel. Therefore, routing by dial plan
can route calls only to a single data extension for each single telephone
number provided by the local exchange carrier central office.
The three settings in the Incoming Routing Table are as follows:
Expected Digits. The number of digits sent from the service provider.
Digit Addition. Digits are added to the beginning of the digits.
Digit Deletion. Digits are deleted from the end of the digits.
An example of an Incoming Routing Table is shown in
August 1998
Page 523
Table 37.
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