96 CHAPTER 2: DIAL PLAN
For each DestinationRoute, two DestinationRouteOperation Create
commands perform two functions:
■ The stripLead command removes the two digits (62 or 63) leaving the
4-digit extension the user dialed.
■ The prepend command adds the IP Address of the destination NBX
system to the extension that the user dialed. In this example, the IP
address for Atlanta is 192.169.25.100 and for Dallas, the IP address is
192.168.35.100. In the dial plan, you must use an asterisk (*) instead
of a period (.) to separate the fields within the IP address, and to
separate the IP address from the destination extension.
Updating the
Extension List
The final step in activating the virtual tie lines is to add the VTL extensions
to the appropriate extension list (*0006).
To update the extension list:
1 In the NBX NetSet - Main Menu window, click Dial Plan.
2 Click the Extension Lists tab.
3 Select the Virtual Tie Lines extension list (*0006).
4 Click Modify.
5 In Extensions not in List, scroll down until you see the first VTL item.
The number of VTL items depends on the VTL license you have.
Each VTL item has (VTL) at the beginning of the line, followed by the
name of the virtual tie line.
Table 19
describes the VTL extension ranges.
6 Select the first VTL, and click << to move the VTL to Extensions in List.
7 Repeat until all VTLs are moved to Extensions in List.
Table 19 Virtual Tie Line Extension Ranges
Platform Extension Range
SuperStack 3
4-digit dial plan
6500–6523
SuperStack 3
3-digit dial plan
The default dial plan for a SuperStack 3 NBX system is
4-digit. If you convert to a 3-digit dial plan, you must
manually change each 4-digit extension to a 3-digit
extension. For VTLs, you can select any unused 3-digit
extension from the external extension range (600–799).
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