Managing Extension Lists - 3Com SuperStack 3 NBX Administrator's Manual

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Managing
Extension Lists
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LAN
Table 10 Modify Extension Operations (continued)
Operation
Prepend
Append
Strip Leading Digits
Strip Trailing Digits
Changing Extensions
You can perform several operations through the Modify Extensions dialog
box (Table 10). 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 Table 11 for a description of the standard
extension lists.
CAUTION: Extension lists must not overlap.
Purpose
Prepends the digits in front of all selected extensions.
Appends the digits to the end of all selected extensions.
Strips (removes) the specified number of digits from the
beginning of all selected extensions.
Strips (removes) the specified number of digits from the end
of all selected extensions.