Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 625

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
System Renumbering
dial tone, users can call extensions, call calling groups, and access a line/trunk to
make an outside call (if permitted). See
information.
Logical IDs
A logical ID is a number that is associated with each connection on the
communications system. There is one set of logical IDs for extensions and one
set for lines/trunks.
Line/trunk logical IDs start numbering at the first jack of the first line/trunk module
in the control unit with the number 1 up to the number 80. For most line/trunk
modules there is a one-to-one correspondence between the jack and the logical
ID. The exceptions are as follows:
Each 100D module is assigned 24 logical IDs, although the module has
only 1 physical line/trunk jack.
Each 800 NI-BRI module is assigned 2 logical IDs for each physical
line/trunk jack, for a total of 16 logical IDs.
For extension modules, another set of logical IDs starts numbering at the first jack
of the first extension module in the control unit with the number 1 up to 200. For
most extension modules there is a one-to-one correspondence between the jack
and the logical ID. The exception is the 008 OPT module is assigned 12 logical
IDs, although the module has only 8 physical extension jacks.
Considerations and Constraints
Extensions do not need to be renumbered in the following cases:
The default 2-digit extension numbers are acceptable.
No special extension numbers are needed.
There are fewer than 50 extensions in the system.
Any extension number except 0 (system operator) can be renumbered. Line/trunk
numbers (801–880) can be renumbered.
After an extension is renumbered, the original extension number is available for
use. For example, after Extension 32 is renumbered to 40, Extension 32 is
available for use.
System renumbering should not be confused with board renumbering, which is
used when modules in the control unit are changed. For additional information
about board renumbering, see System Programming .
When you use system renumbering in Release 2.0 or earlier with Integrated
Solution III version 1.0 or 1.1, AUDIX Voice Power erases all messages and
greetings for extensions that have been renumbered. This occurs when the
''Remote Access'' on page 522
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Issue 1
June 1997
Page 593
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