Lucent Technologies MERLIN LEGEND Release 6.1 - Page 727

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Issue 1
August 1998
Features
Page 678Tandem Switching
for all others). See “Restrictions” on page 78 in the ARS topic and “Uniform
Dial Plan Features” on page 710. For more information refer to Network
Reference
.
FRLs are assigned to extensions. These FRLs apply not only to ARS but to
non-local UDP routing as well. Plan UDP, ARS, and extension FRLs
carefully so that extension users can reach non-local extensions as needed
and still be subject to required limitations on toll calling. For more
information about UDP routing, see “Uniform Dial Plan Features” on page
710. For more information refer to Network Reference .
■ Assign absorbed and other (prepended) digits as required by ARS at each
switch. The local ARS feature must prepend the ARS access code of the
remote system.
Network Calls Routed via the Local System 43
When non-local users access ARS to dial out over PSTN facilities connected to
your local system or to another system connected to yours, your system uses a
special form of the Remote Access feature to accommodate these calls. Because
calls are routed from one system to one or more other systems, the remote
access settings for this purpose are distinct from the Remote Access feature used
by individuals who enter a barrier code in order to reach an extension or place an
outgoing call on the system.
Non-local users who access your PSTN trunks via ARS and private network
trunks do not dial a remote-access barrier code. For security purposes, the
system applies the default COR calling restrictions that you assign to all tie (T1-
emulated voice or data, or analog) or non-tie (PRI) trunks, ignoring the barrier
code requirement setting. If remote users connect to your system via tandem PRI
facilities, the non-tie restrictions apply; otherwise, the tie restrictions apply. Non-
tie restrictions apply to tandem PRI trunks only, and tie restrictions apply to
tandem tie trunks only. You can program both types of COR if needed, using the
following system programming procedure (refer to
System Programming guide
for detailed instructions).
6<6352*5$0 → /,1(67581. → 5(027($&&(66 → 1217,(7,(/,1(6 → 5(675,&7,216
When programming the default COR, change the Calling Restriction option to
unrestricted (the factory setting is outward restricted). You should assign
Disallowed List 7 to include; 900, 976, and other types of calls that users should
not be allowed to call. When a call is received at a non-local system that routes it
to another network system, the FRL assigned to the default COR is compared to
the local UDP or ARS route FRL to permit or forbid the routing of the call. For a
call to go through, the route FRL must be equal to or less than the default COR
FRL.