AT&T MERLIN LEGEND Release 3.1, System Programming Manual

Page: 384 / 887

System Renumbering
4–12
Programming Procedures
System Renumbering
The procedures in this section are used to assign the 2-digit, 3–digit, and Set Up
Space numbering plans.
NOTE:
System Renumbering is called Flexible Numbering in the MERLIN
â
II
Communications System. This is
not
the same as Board Renumbering, an option
used when modules in the control unit are changed.
Do not attempt to assign a numbering plan without Planning Forms 2a, System
Numbering: Extension Jacks; 2b, System Numbering: Digital Adjuncts; and 2d,
System Numbering: Special Renumbers. Form 6a, Optional Operator Features,
is needed to assign a DSS
Page button.
This section contains the following programming procedures:
■
Select System Numbering Plan
■
Direct Station Selector (DSS) Page Button Assignment
This section contains summaries for the following procedures which are
described in detail in Chapter 3, “Common Administrative Procedures”:
■
Single Renumbering
■
Block Renumbering
You select only one of the numbering plans (2-digit numbering, 3-digit
numbering, or Set Up Space numbering). In addition, you may need to perform
single and/or block renumbering. You do not need to assign DSS
Page buttons
unless the system programming console or one of the operator positions is
connected to a DSS. No matter which procedures you need to perform, assign
the numbering plan first, then do single and/or block renumbering, and finally,
assign DSS
Page buttons (if necessary).
Use the single renumbering procedure any time the extension numbers you are
changing
from or to are not sequential.
Block renumbering is quicker, but you can use block renumbering only when the
extension numbers you are changing
from and to are sequential.
When trunk or extension modules are removed from the control unit, the
remaining modules must be rearranged so that no empty slots remain. The
system does not acknowledge any modules installed after an empty slot;
therefore, if the system is renumbered, extensions are not assigned to extension
jacks after the empty slots.