User guide

System Configuration
24 AltiWare OE System Administration Manual
Setting a System Number Plan
The System Number Plan defines the extension digit length. You can use
from 3 – 6digits for extensions. You also use the System Number plan to
set a DID number length to use, and to define the system response to the
first digit dialed—for example, pressing 9 to get a trunk line.
The numbering scheme requires some thoughtful planning. You cannot edit
the extension length after the first extension is assigned. Further, if a first
digit dialed is assigned to extensions and you have set up extensions
beginning with that digit, you cannot change the digit assignment without
first deleting all affected extensions. For example, if 7 is assigned to
Extension and you’re using extensions 7010, 7113, etc., you cannot
reassign 7 to say, IP trunk access, without first deleting all the 7nnn
extensions.
Accessing the Number Plan
To access the Numbering plan settings, select System Configuration... on
the Management menu, then click the Number Plan tab. Here’s an
example of the Number Plan window.
Figure 2. Number Plan window, System Configuration