Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 499

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Primary Rate Interface (PRI) and T1
3. ARS performs digit deletion/addition operations for the route and, in so
doing, may indirectly specify the best service for the call.
4. With these ARS outgoing digits, the call-by-call B-channel group selects
the service, possibly based on digits added by ARS, and performs digit
deletion as required.
5. A call setup message is sent to the network/central-office switch.
Restriction Code Handling for FTS2000 Network. FTS2000 network users can
have restriction codes applied to their extensions. A person who attempts to place
a call that exceeds the set restriction level must first enter a restriction code. If no
code is entered, the FTS2000 network prompts the user to enter the code from
the telephone dialpad.
Prior to Release 2.0, the restriction codes are input in-band (using touch-tones). In
Release 2.0 and later systems, the system allows a restriction code to be entered
with the Account Code Entry feature. This is especially useful for data calls
because there is no in-band signaling to interfere with the data, since the
restriction code is sent out of band in the setup message.
Station Identification-Automatic Number Identification (SID-ANI) as Calling
Party Number. In Release 1.0 and later systems, facility-based information is
used by the network for sending the Calling Party Number. If the SID-ANI option is
programmed (and the service subscribed to), Release 2.0 and later systems send
a systemwide base number of up to 12 digits, of which the final digits (up to 4
digits) are replaced with the number of the extension from which the call was
made. For example, a call made from extension 7104 with a systemwide base
number of 908-555-7000 sends the number 908-572-7104. For facility-to-facility
calls where there is no call-originating extension (for example, Remote Call
Forwarding), the systemwide base number is substituted. However, trunk-to-trunk
transfer results in a CPN that consists of a base number in which the last digits
are replaced by the number of the transferring extension.
In some instances, the systemwide base number is not sufficient to cover all
extension numbers in the system. For example, the base number might be
908-555-7000 and there might be a group of extensions, 7000 through 7099, that
correspond to telephone numbers from 908-555-7000 to 908-555-7099; there
might be another group of extensions numbered 300 through 399 whose
telephone numbers are 908-555-0300 through 908-555-0399. In a case like this,
there is no base number that can cover all of the extensions so that the number
sent is the correct number for the extension.
In Release 4.2 and later systems, the MERLIN LEGEND Communications
System's PRI support for calling party identification extends to MCI and local
exchange (DMS-100) subscription services.
Issue 1
June 1997
Page 467