3Com NBX 100, Administrator'S Manual

Page: 103 / 496

Managing Existing Virtual Tie Lines 103
Successful VTL Call
If there are no network problems:
1 The first line (Entry 1, OperId 1) removes the digits 72.
2 The second line (Entry 1, OperId 2) prepends the IP address of the NBX
system at site B in front of the dialed extension number.
Unsuccessful VTL Call
If a network problem or a lack of VTL ports prevents the VTL call from
reaching its destination:
1 The third line (Entry 2, OperId 1) removes the digits 72.
2 The fourth line (Entry 2, OperId 2) prepends an appropriate dial string and
dials out over an analog telephone line.
Managing Existing
Virtual Tie Lines
After VTLs are installed and you have verified that they are working
properly, you can manage them using the NBX NetSet utility. There are
NBX NetSet utility functions for:
■
Modifying a Virtual Tie Line Name
■
Viewing and Resetting Virtual Tie Line Statistics
■
Enabling Audio Compression
■
Enabling System-wide Silence Suppression
Modifying a Virtual
Tie Line Name
You can change the name of a VTL. The name appears in NBX NetSet
utility lists, and helps you identify each VTL.
To modify the name of a VTL:
1 In the NBX NetSet - Main Menu window, click Device Configuration.
2 Click the Virtual Tie Lines tab. The window that appears (Figure 36)
contains the list of existing VTLs, and the status of each one.