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MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Programming Procedures
Page 4-82Uniform Dial Plan Facilities
4
Uniform Dial Plan Facilities 4
Release 6.0 and later systems, Hybrid/PBX mode only, provide support for
Uniform Dial Plan (UDP) facilities, networked lines/trunks originating at one or
more other MERLIN LEGEND Communications Systems or DEFINITY
Communications Systems. Use the procedures in this section to program the
switch identifiers for private network trunks.
Switch Identifiers 4
Switch identifiers are 1- or 2-digit prefixes that appear in print reports and are
used by the system to identify calls, transmission level determination, and route
checking. If your system uses private facilities, you
must
program switch
identifiers. Switch identifiers indicate the switch connected to the far end of a
private trunk.
The procedures in this topic allow you to add, change, and remove switch
identifiers.
Trunks connected to your system from the CO do not require identifiers. They are,
by default, correctly assigned a null identifier.
When a private networked trunk is deleted, it is assigned a null identifier, as are
trunks newly added to the system.
You can add a switch identifier to a block of trunks, and you can remove a switch
identifier from a block of trunks that use the same switch identifier.
The correct switch identifier for a trunk or block of trunks is determined by the type
of switch to which the trunk is connected and whether or not that switch is a
satellite switch located within 200 miles of the local system. Identifying those
switches greater than 200 miles from the local system is important in assuring
transmission quality across the network. The identifiers are switch numbers that
have the following meanings:
■ Unassigned (null) = trunk connected to CO (central office)
■ 1–20 = trunk connected to a non-satellite MERLIN LEGEND
Communications System
■ 21–40 = trunk connected to a satellite MERLIN LEGEND Communications
System
■ 41–50 = trunk connected to a non-satellite, non-LEGEND system (for
example, a DEFINITY Communications System)
■ 51–60 = trunk connected to a satellite, non-LEGEND system (for example,
a DEFINITY Communications System)
NOTE:NOTE:NOTE:
The Enter Switch Number screens for the switch identifier procedures
include a Help option that supplies the information above.