AT&T MERLIN LEGEND Release 3.0 System Programming Manual page 365

System Renumbering
Set Up Space.
extension numbers or use extension numbers of varying lengths (one to
four digits). All extensions are assigned 4-digit numbers in the 7000
range. Extension numbers 1000 through 6999 are also available for use
when you renumber.
In all three numbering plans, the system assigns 3-digit extension numbers to
pools (Hybrid/PBX only), calling groups, paging groups, remote access codes,
the Listed Directory Number, park codes, and Idle Line Access (Key and
Behind Switch modes). In addition, the system assigns 9 for Automatic Route
Selection (Hybrid/PBX only) and Idle Line Access (Key and Behind Switch only).
Zero (0) represents a special extension number—actually a fixed dial code-for
the primary operator or QCC queue. Any extension number except O can be
renumbered.
Extension numbers can be composed of any combination of digits; however, no
number can begin with O. Trunk numbers (801 to 880) are considered to be
extensions and can be renumbered.
The system does not provide a message to indicate a successful renumber
when either the 2-digit or 3-digit numbering plan is selected. For the Set Up
Space numbering plan, the system provides a message indicating that all
extensions are in the 7000 range.
CAUTION:
Select Exit on the console or [ F5 ] on the PC when you have finished
selecting the numbering plan. If you press
in the forced idle condition (indicated when the LED next to each DSS
button is on). To restore extensions to their normal operating state, restart
the system.
Summary: Select System Numbering Plan
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure SysRenumber → Default Numbering → Select numbering
PC Procedure
This plan is for systems with a need to customize
System manager
All
System idle
Form 2a, System Numbering: Extension Jacks
2-digit
2–digit, 3-digit, Set Up Space
No
No
plan → Exit → Exit
[ F2 ] → [ F1 ] → Select numbering Plan → [ F5 ] → [ F5 ]
Home,
extensions may remain
Programming Procedures
4–15