Users Affected

Telephone users, operators, data users

Reports Affected

ARS, Dial Plan, Extension Directory, Extension Information, Group Paging, Operator Information, Remote Access (DISA) Information

Modes

All

Telephones

All

System Programming

Change the 2-digit numbering plan to 3-digit or Set Up Space:

• SysRenumberDefault Numbering2-Digit/3-Digit/Set-up Space

Renumber individual extensions or groups of extensions, Calling Group extensions, Group Paging extension, pool dial-out codes, operator Park Zones, LDN extension, Remote Access code, ARS access code; or assign the range of extensions on a DSS:

• SysRenumberSingle
• SysRenumberBlock

Maximums

Numbering Range: 0-9950

Factory Settings

Numbering Plan

ARS/Idle Line Access Code

Calling Groups

DSS Page 1 button

DSS Page 2 button

DSS Page 3 button

Extra Adjuncts

Extra Extensions

Listed Directory Number

MFMs/Terminal Adapters

Operator

Paging Groups

Park Zones

  Main Pool

  Dial-In Tie Trunk

Remote Access Code

Extensions

2-digit

9 (all numbering plans)

770-791 and 7920-7929 (all numbering plans)

starts with Extension 0

starts with Extension 50

starts with Extension 100

6850-6992 (2-digit plan)

6700-6842 (2-digit plan)

800 (all numbering plans)

710-766 (2-digit plan)

300-499 (3-digit plan)

0 (not programmable)

793-799 (all numbering plans); 881-888 (operator only)

70 (all numbering plans)

891 (all numbering plans)

889 (all numbering plans)

10-66 (2-digit plan); 100-299 (3-digit plan)

In systems (Hybrid/PBX mode only) where local users will dial extensions on a remote networked system, UDP procedures are used to number these extensions so that local users can reach these extensions as though they were on the local system. This section describes only the numbering for local extension numbers. For detailed information about numbering non-local dial plan extensions, see Uniform Dial Plan Features.