Lucent Technologies MERLIN LEGEND Release 6.1 User Manual

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Issue 1
August 1998
Features
Page 74Automatic Route Selection
How ARS Works 2
A user hears inside dial tone on an SA button and dials the ARS access code
(usually a
) to connect to ARS, then dials a call. If the extension is restricted or
toll-restricted and the number dialed is not on the Allowed List, or if the number
dialed is on the Disallowed List, the user receives a system error tone. Otherwise,
ARS compares the number dialed with information in the tables. All tables are
available for use at first. Tables are then eliminated from possible use on the call,
one by one, until the best table is selected.
Once the table is selected, ARS chooses the appropriate subpattern and checks
restrictions, eliminating from consideration any routes with restriction levels higher
than the extension’s. Any remaining eligible routes are scanned from the
beginning of the list. The first eligible route that is not busy is selected.
NOTE:
In Release 6.0 and later systems, equal access calls (Interexchange or IXC
calls), Dial 0 calls, and N11 calls from systems that are not connected to
the public switched telephone network require special planning. See
“Tandem Switching” on page 671
for details.
Table Selection 2
411, 611, 811, 911, or 10xx/101xxxxx (Equal Access Codes) 2
If the caller dials one of these N11 or equal access (Interexchange or IXC)
numbers, the call is routed over the main pool, using the factory-set Special
Numbers (N11) Table.
First Digit Not a 1, N11, or Equal Access Code 2
All but the Local Exchange, Default Local, and Dial 0 Tables are eliminated.
Next, ARS examines the entries in the Local Exchange Tables:
■ If ARS finds only one match, it selects that Local Exchange Table.
■ If ARS finds more than one match, it selects the lowest-numbered Local
Exchange Table.
■ If ARS finds no match and the first digit is 0, it selects the Dial 0 Table.
Area Code Tables Local Exchange
Tables
6-Digit Tables 1+7 Tables
Dial 0 Table Special No. (N11)
Table
Default Toll Table Default Local
Table
Area Code Tables Local Exchange
Tables
6-Digit Tables 1+7 Tables
Dial 0 Table
Special No. (N11)
Table
Default Toll Table Default Local
Table

Lucent Technologies MERLIN LEGEND Release 6.1 Specifications

General

Brand	Lucent Technologies
Model	MERLIN LEGEND Release 6.1
Category	Conference System
Language	English