Lucent Technologies MERLIN LEGEND Release 7.0 Feature Reference page 562

MERLIN LEGEND Communications System Release 7.0
Feature Reference 555-670-110
Features
Pools
Users must not be given dial access or Pool button access to pooled
private trunks. To use these pools, users dial non-local dial plan extensions
just as they would local extensions. They also use these pools when they
dial ARS for outside calls, and the ARS tables route the calls to other
networked switches (see
''Tandem Switching'' on page 699
To allow local users to dial extensions on a remote networked system, UDP
routing is used. Pools containing tandem PRI trunks should be assigned to
Route 1. For details, see
If a directly networked system has no trunks connected to the public
switched telephone network, the pool and ARS assignments listed below
are required in order to make equal access (10xxx, 101xxxx, also called
Interexchange or IXC ) calls.
!
If a networked system has no trunks connected to the public switched
telephone network, the following pool and ARS assignments are required
in order to make Dial 0 or N11 calls:
— The local system must have its networked trunks assigned to the
main pool.
— The local ARS access code is automatically prepended to the dialed
number.
— The local ARS access code must match that of a remote system that
is networked to the local system.
CAUTION:
Because of the above requirement, it is a good idea for all systems in
a private network to use the same ARS access code. If a networked
system without PSTN trunks is in the same location as another
networked system over which Special Numbers calls can go out to
the PSTN and reach correct services, then the arrangement
described above is practical. In most cases, however, each system in
a network should have at least one loop-start line, which is assigned
to the main pool and available in the event of a power failure. This
allows Special Number calls (911 calls, for example) to reach the
correct local services. It also means that IXC calls are routed to the
main pool analog line or lines. If many IXC calls are made, then the
number of lines assigned to the main pool must be increased.
— The local system must have its networked trunks assigned to the
main pool.
— The local ARS programming must prepend the ARS access code of
the remote switch that is directly connected to the local private
network trunks.
''Automatic Route Selection'' on page 77
for details).
''Uniform Dial Plan Features'' on page
Issue 1
April 1999
502
and
741.