3com SuperStack 3 NBX Manual De Usuario

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You can perform several operations through the Modify Extensions dialog 
box (

). This section describes several examples.

Example: If you select Change Extension from the Operation list, the 
system replaces the selected extension with the number you type in the 
text box.

Example: If you select Strip Leading Digits from the Operation list, and 
type the number 2 in the text box, the system strips (removes) two digits 
from the beginning of the extension.

Example: If you select extensions 1000 through 1009 and select Strip 
Trailing Digits from the Operation list, the system does not make any 
change, because the result is a series of identical numbers (all 100).

An extension list contains NBX extension numbers that are assigned and 
dedicated to specific dial tone facilities or to specific NBX applications 
(such as voice mail, Auto Attendant, and so on), or both. You can add an 
extension list to define a subset of devices such as fax machines.

Extension lists are typically numbered upward starting at *0001 in either 
a 3-digit or 4-digit plan. By convention, the extension list number is 
preceded by an asterisk. See 

 for a description of the standard 

extension lists.

Table 10   Modify Extension Operations

Change Extension

Modifies the first selected extension. Change Extension 
applies to only one extension at a time. If you select multiple 
extensions, the NBX system changes only the first extension 
that you selected.

Prepend

Prepends the digits in front of all selected extensions.

Append

Appends the digits to the end of all selected extensions.

Strip Leading Digits

Strips (removes) the specified number of digits from the 
beginning of all selected extensions.

Strip Trailing Digits

Strips (removes) the specified number of digits from the end 
of all selected extensions.